Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA

Oldest recorded age at locality: 12
Youngest recorded age at locality: 0

mindat Locality ID: 208640
mindat URL: http://www.mindat.org/loc-208640.html

Tectonic Settings:

Total number of sublocalities beneath "Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA": 6
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Brokeoff Mountain
Bumpass Hell
Lassen Peak
Supans Springs

Latitude: 40°27'6"N
Longitude: 121°31'44"W
Decimal Degree (lat, lon): 40.451666666667,-121.52888888889

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Alunite	Amorphous	Calcite	Clay	Corundum	Cristobalite	Diaspore	Feldspar	Halotrichite	Kaolinite
Melanterite	Natrolite	None	Not in a structural group	Pyrite	Pyrophyllite	Quartz	Smectite-vermiculite	Sulphur	Tridymite
Voltaite

Albite ()*	Alunite ()*	Alunogen ()*	Anatase ()*	Calcite ()*
Cristobalite ()*	Dickite ()*	Goethite ()*	Halotrichite ()*	Hematite ()*
Jarosite ()*	Kaolinite ()*	Melanterite ()*	Mesolite ()*	Montmorillonite ()*
Natroalunite ()*	Opal ()*	Pyrite ()*	Pyrophyllite ()*	Quartz ()*
Sulphur ()*	Tridymite ()*	Voltaite ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al C Ca Fe H K Mg Na O S Si Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Alunite Amorphous Calcite Clay Corundum Cristobalite Diaspore Feldspar Halotrichite Kaolinite
Melanterite Natrolite None Not in a structural group Pyrite Pyrophyllite Quartz Smectite-vermiculite Sulphur Tridymite
Voltaite

23 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	12	1	176408	8803
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	12	2	176405,176408	966
Alunogen ()*	Not in a structural group	Al₂(SO₄)₃(H₂O)₁₂·5H₂O	12	1	176408	272
Anatase ()*	Not in a structural group	TiO₂	12	1	176408	2162
Calcite ()*	Calcite	Ca(CO₃)	12	1	176408	27770
Cristobalite ()*	Cristobalite	SiO₂	12	1	176408	453
Dickite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	12	1	176408	651
Goethite ()*	Diaspore	FeO(OH)	12	1	176408	7437
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O	12	1	176408	409
Hematite ()*	Corundum	Fe₂O₃	12	1	176408	14640
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	12	1	176408	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	12	2	176405,176408	5591
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	12	1	176409	915
Mesolite ()*	Natrolite	Na₂Ca₂(Si₉Al₆)O₃₀·8H₂O	12	1	176408	425
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	12	1	176408	1508
Natroalunite ()*	Alunite	NaAl₃(SO₄)₂(OH)₆	12	1	176408	128
Opal ()*	Amorphous	SiO₂·nH₂O	12	2	176405,176408	2994
Pyrite ()*	Pyrite	FeS₂	12	2	176408,176409	39462
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂	12	1	176408	771
Quartz ()*	Quartz	SiO₂	12	1	176408	61156
Sulphur ()*	Sulphur	S	12	4	176406,176407,176408,176410	2045
Tridymite ()*	Tridymite	SiO₂	5.3	1	176407	458
Voltaite ()*	Voltaite	K₂Fe²⁺₅Fe³⁺₃Al(SO₄)₁₂·18H₂O	12	1	176409	111

168 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Sample Source	Sample Num	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
NAVDAT-10419	0.6	0.45	0.53+0.07/-0.08		10419	212139	Brokeoff Mountain, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-19999	1.8	0.01	0.91+0.89/-0.9	unknown	19999	212139	Brokeoff Mountain, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20080	1.8	0.01	0.91+0.89/-0.9	unknown	20080	212139	Brokeoff Mountain, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61076	5.3	0	2.65±2.65		61076	212139	Brokeoff Mountain, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61077	5.3	0	2.65±2.65		61077	212139	Brokeoff Mountain, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61177	5.3	0	2.65±2.65		61177	212139	Brokeoff Mountain, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-90158	0.47	0.385	0.43+0.04/-0.045		90158	212139	Brokeoff Mountain, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-10421	0.6	0.45	0.53+0.07/-0.08		10421	92960	Supen Sulphur Works, Brokeoff Mountain, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-10481	0.25	0.2	0.23+0.02/-0.03		10481	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-10483	0.25	0.2	0.23+0.02/-0.03		10483	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20169	1.8	0.01	0.91+0.89/-0.9	unknown	20169	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20173	1.8	0.01	0.91+0.89/-0.9	unknown	20173	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20276	1.8	0.01	0.91+0.89/-0.9	unknown	20276	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61135	5.3	0	2.65±2.65		61135	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61272	5.3	0	2.65±2.65		61272	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61275	5.3	0	2.65±2.65		61275	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61537	5.3	0	2.65±2.65		61537	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-90203	0.3	0.19	0.25+0.05/-0.06		90203	92497	Bumpass Hell, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-10496	0.1	0	0.05±0.05		10496	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-14538	1.5	0	0.75±0.75		14538	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-14539	1.5	0	0.75±0.75		14539	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-14540	1.5	0	0.75±0.75		14540	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-14541	1.5	0	0.75±0.75		14541	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-1481	1.8	0	0.9±0.9		1481	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-1482	1.8	0	0.9±0.9		1482	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-1483	1.8	0	0.9±0.9		1483	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-1484	1.8	0	0.9±0.9		1484	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-1485	1.8	0	0.9±0.9		1485	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-1486	1.8	0	0.9±0.9		1486	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-1487	1.8	0	0.9±0.9		1487	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-19979	0.4	0	0.2±0.2	unknown	19979	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-19982	0.4	0	0.2±0.2	unknown	19982	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20064	0.01	0	0.01+0/-0.01	unknown	20064	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20065	0.01	0	0.01+0/-0.01	unknown	20065	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20234	0.01	0	0.01+0/-0.01	unknown	20234	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20235	0.01	0	0.01+0/-0.01	unknown	20235	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20236	0.01	0	0.01+0/-0.01	unknown	20236	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20238	0.01	0	0.01+0/-0.01	unknown	20238	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20239	0.01	0	0.01+0/-0.01	unknown	20239	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20285	0.01	0	0.01+0/-0.01	unknown	20285	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20340	0.01	0	0.01+0/-0.01	unknown	20340	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20341	0.01	0	0.01+0/-0.01	unknown	20341	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20342	0.01	0	0.01+0/-0.01	unknown	20342	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20423	1.8	0.01	0.91+0.89/-0.9	unknown	20423	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20424	1.8	0.01	0.91+0.89/-0.9	unknown	20424	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20425	1.8	0.01	0.91+0.89/-0.9	unknown	20425	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20426	0.01	0	0.01+0/-0.01	unknown	20426	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20433	1.8	0.01	0.91+0.89/-0.9	unknown	20433	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20434	1.8	0.01	0.91+0.89/-0.9	unknown	20434	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20435	1.8	0.01	0.91+0.89/-0.9	unknown	20435	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20436	0.01	0	0.01+0/-0.01	unknown	20436	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20550	0.6	0.47	0.54+0.06/-0.07		20550	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20551	0.6	0.47	0.54+0.06/-0.07		20551	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20552	0.6	0.47	0.54+0.06/-0.07		20552	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20553	0.6	0.47	0.54+0.06/-0.07		20553	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20554	0.6	0.47	0.54+0.06/-0.07		20554	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20555	0.6	0.47	0.54+0.06/-0.07		20555	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20556	0.47	0.4	0.44+0.03/-0.04		20556	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20557	0.47	0.4	0.44+0.03/-0.04		20557	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20558	0.47	0.4	0.44+0.03/-0.04		20558	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20559	0.4	0	0.2±0.2		20559	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20560	0.4	0	0.2±0.2		20560	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20561	0.4	0	0.2±0.2		20561	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20562	0.4	0	0.2±0.2		20562	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20563	0.25	0.2	0.23+0.02/-0.03		20563	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20564	0.25	0.2	0.23+0.02/-0.03		20564	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20565	0.1	0	0.05±0.05		20565	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20566	0.1	0	0.05±0.05		20566	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20567	0.1	0	0.05±0.05		20567	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20568	0.1	0	0.05±0.05		20568	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20569	0.1	0	0.05±0.05		20569	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20570	0.1	0	0.05±0.05		20570	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20571	0.1	0	0.05±0.05		20571	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20572	0.1	0	0.05±0.05		20572	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20573	0.1	0	0.05±0.05		20573	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20574	0.1	0	0.05±0.05		20574	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20575	0.3	0	0.15±0.15		20575	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20576	0.3	0	0.15±0.15		20576	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20577	0.3	0	0.15±0.15		20577	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20578	0.3	0	0.15±0.15		20578	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20579	0.6	0	0.3±0.3		20579	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20580	0.6	0	0.3±0.3		20580	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20581	0.6	0	0.3±0.3		20581	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20582	0.6	0	0.3±0.3		20582	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20583	0.6	0	0.3±0.3		20583	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20584	0.6	0	0.3±0.3		20584	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20585	0.6	0	0.3±0.3		20585	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20586	0.6	0	0.3±0.3		20586	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20587	0.6	0	0.3±0.3		20587	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20588	0.6	0	0.3±0.3		20588	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39168	1.5	0	0.75±0.75		39168	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39169	0.077	0.063	0.07±0.007		39169	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39171	0.077	0.063	0.07±0.007		39171	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39172	0.077	0.063	0.07±0.007		39172	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39173	0.473	0.387	0.43±0.043		39173	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39174	0.473	0.387	0.43±0.043		39174	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39175	0.011	0.009	0.01±0.001		39175	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39176	1.507	1.233	1.37±0.137		39176	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39177	0.473	0.387	0.43±0.043		39177	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39179	0.473	0.387	0.43±0.043		39179	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39182	1.5	0	0.75±0.75		39182	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39183	0.473	0.387	0.43±0.043		39183	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39184	0.077	0.063	0.07±0.007		39184	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39185	1.507	1.233	1.37±0.137		39185	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39186	1.5	0	0.75±0.75		39186	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39187	1.507	1.233	1.37±0.137		39187	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39188	1.5	0	0.75±0.75		39188	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39189	1.507	1.233	1.37±0.137		39189	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39190	1.5	0	0.75±0.75		39190	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39191	1.5	0	0.75±0.75		39191	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39192	1.5	0	0.75±0.75		39192	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39193	0.077	0.063	0.07±0.007		39193	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39195	1.5	0	0.75±0.75		39195	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39196	1.5	0	0.75±0.75		39196	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39197	1.5	0	0.75±0.75		39197	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39200	1.5	0	0.75±0.75		39200	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39203	1.5	0	0.75±0.75		39203	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39206	1.5	0	0.75±0.75		39206	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39207	1.5	0	0.75±0.75		39207	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39208	1.5	0	0.07+1.43/-0.07		39208	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39209	1.5	0	0.75±0.75		39209	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39210	1.5	0	0.75±0.75		39210	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39211	1.5	0	0.75±0.75		39211	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39212	1.5	0	0.75±0.75		39212	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39213	1.5	0	0.75±0.75		39213	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39216	1.5	0	0.75±0.75		39216	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39217	1.5	0	0.75±0.75		39217	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39218	1.5	0	0.75±0.75		39218	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39219	1.5	0	0.75±0.75		39219	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39220	1.5	0	0.75±0.75		39220	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39222	1.5	0	1.37+0.13/-1.37		39222	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39223	1.5	0	0.75±0.75		39223	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39224	1.5	0	0.75±0.75		39224	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39225	1.5	0	0.75±0.75		39225	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39226	1.5	0	0.75±0.75		39226	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39229	1.5	0	0.75±0.75		39229	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39230	1.5	0	0.75±0.75		39230	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39780	1.37	1.37	1.37±0		39780	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-39781	1.37	1.37	1.37±0		39781	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-5726	0.6	0.4	0.5±0.1		5726	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-5727	0.6	0.4	0.5±0.1		5727	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-5728	0.6	0.4	0.5±0.1		5728	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-5729	0.6	0.4	0.5±0.1		5729	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-5730	0.6	0.4	0.5±0.1		5730	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-5731	0.6	0.4	0.5±0.1		5731	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-5732	0.6	0.4	0.5±0.1		5732	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-57887	12	0.2	6.1±5.9		57887	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61146	5.3	0	2.65±2.65		61146	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61147	5.3	0	2.65±2.65		61147	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61148	5.3	0	2.65±2.65		61148	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61149	5.3	0	2.65±2.65		61149	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61229	5.3	0	2.65±2.65		61229	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61230	5.3	0	2.65±2.65		61230	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61390	5.3	0	2.65±2.65		61390	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61391	5.3	0	2.65±2.65		61391	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61423	5.3	0	2.65±2.65		61423	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61424	5.3	0	2.65±2.65		61424	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61428	5.3	0	2.65±2.65		61428	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61429	5.3	0	2.65±2.65		61429	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-90184	0.0715	0.0585	0.065±0.0065		90184	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-90185	0.0715	0.0585	0.065±0.0065		90185	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-90213	0.341	0.279	0.31±0.031		90213	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-90220	0.341	0.279	0.31±0.031		90220	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-90222	0.341	0.279	0.31±0.031		90222	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-90223	0.341	0.279	0.31±0.031		90223	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-90224	0.341	0.279	0.31±0.031		90224	3579	Lassen Peak, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-20077	1.8	0.01	0.91+0.89/-0.9	unknown	20077	219773	Supans Springs, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT
NAVDAT-61174	5.3	0	2.65±2.65		61174	219773	Supans Springs, Lassen Volcanic National Park, Cascade Range, Shasta Co., California, USA	NAVDAT	NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...