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:
Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA

mindat Locality ID: 3502
mindat URL: http://www.mindat.org/loc-3502.html

Tectonic Settings:

Total number of sublocalities beneath "Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 39°37'5"N
Longitude: 123°27'47"W
Decimal Degree (lat, lon): 39.618055555556,-123.46305555556

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.

Amphibole	Aragonite	Calcite	Chalcopyrite	Clay	Clinozoisite	Corundum	Epidote	Feldspar	Garnet
Lawsonite	Mica	None	Pumpellyite	Pyrite	Pyroxene	Quartz	Rutile	Spinel	Stilpnomelane
Talc	Titanite

Aegirine ()*	Albite ()*	Almandine ()*	Aragonite ()*	Calcite ()*
Calderite ()*	Chalcopyrite ()*	Clinozoisite ()*	Deerite ()*	Glaucophane ()*
Graphite ()*	Grunerite ()*	Howieite ()*	Ilmenite ()*	Jadeite ()*
Kutnohorite ()*	Lawsonite ()*	Magnesio-riebeckite ()*	Magnetite ()*	Muscovite ()*
Pumpellyite-(Mg) ()*	Pyrite ()*	Quartz ()*	Riebeckite ()*	Rutile ()*
Siderite ()*	Spessartine ()*	Stilpnomelane ()*	Talc ()*	Titanite ()*
Tremolite ()*	Zussmanite ()*

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 Cu Fe H K Mg Mn Na O S Si Ti

Elements from minerals reported directly at this locality: Al C Ca Cu Fe H K Mg Mn Na O S Si Ti

Structural Groups for minerals in this locality:
Amphibole Aragonite Calcite Chalcopyrite Clay Clinozoisite Corundum Epidote Feldspar Garnet
Lawsonite Mica None Pumpellyite Pyrite Pyroxene Quartz Rutile Spinel Stilpnomelane
Talc Titanite

32 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	2353
Aragonite ()*	Aragonite	Ca(CO₃)	3250
Calcite ()*	Calcite	Ca(CO₃)	27770
Calderite ()*	Garnet	Mn²⁺₃Fe³⁺₂(SiO₄)₃	17
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	27198
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	1025
Deerite ()*	None	Fe²⁺₆Fe³⁺₃(Si₆O₁₇)O₃(OH)₅	27
Glaucophane ()*	Amphibole	Na₂(Mg₃Al₂)Si₈O₂₂(OH)₂	286
Graphite ()*	None	C	2812
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	223
Howieite ()*	None	Na(Fe²⁺,Fe³⁺,Al,Mg)₁₂(Si₆O₁₇)₂(O,OH)₁₀	16
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	5433
Jadeite ()*	Pyroxene	NaAlSi₂O₆	154
Kutnohorite ()*	None	CaMn²⁺(CO₃)₂	234
Lawsonite ()*	Lawsonite	CaAl₂(Si₂O₇)(OH)₂·H₂O	121
Magnesio-riebeckite ()*	Amphibole	Na₂(Mg₃Fe³⁺₂)Si₈O₂₂(OH)₂	93
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	14899
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	17380
Pumpellyite-(Mg) ()*	Pumpellyite	Ca₂MgAl₂(Si₂O₇)(SiO₄)(OH)₂·H₂O	106
Pyrite ()*	Pyrite	FeS₂	39462
Quartz ()*	Quartz	SiO₂	61156
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	375
Rutile ()*	Rutile	TiO₂	5614
Siderite ()*	Calcite	Fe(CO₃)	6417
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	1214
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O	456
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	3337
Titanite ()*	Titanite	CaTi(SiO₄)O	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	2562
Zussmanite ()*	Clay	K(Fe,Mg,Mn)₁₃(Si,Al)₁₈O₄₂(OH)₁₄	5

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
FKM-15	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://www.rockptx.com/fkm-1-to-fkm-25/#FKM-15
FKM-141	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://www.rockptx.com/fkm-126-to-fkm-150/#FKM-141
FKM-147	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://www.rockptx.com/fkm-151-to-fkm-175/#FKM-147
R070393	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://rruff.info/R070393
R060031	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://rruff.info/R060031
R050448	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://rruff.info/R050448

All locality data graciously provided by mindat.org

All age data...