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:
California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Santa Rita Peak, New Idria District, Diablo Range, San Benito Co., California, USA

Oldest recorded age at locality: 5.3
Youngest recorded age at locality: 0

mindat Locality ID: 3531
mindat URL: http://www.mindat.org/loc-3531.html

Tectonic Settings:

Total number of sublocalities beneath "California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Santa Rita Peak, New Idria District, Diablo Range, San Benito Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 36°20'9"N
Longitude: 120°36'19"W
Decimal Degree (lat, lon): 36.335833333333,-120.60527777778

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	Analcime	Aragonite	Baotite	Benitoite	Calcite	Clay	Copper	Covellite	Digenite
Feldspar	Garnet	Joaquinite	Melilite	Natrolite	Neptunite	None	Not in a structural group	Pectolite	Perovskite
Pyrite	Pyroxene	Serpentine	Vesuvianite

Actinolite ()*	Aegirine ()*	Albite ()*	Analcime ()*	Anatase ()*
Andradite ()*	Aragonite ()*	Baotite ()*	Bario-orthojoaquinite ()*	Barioperovskite ()*
Benitoite ()*	Calcite ()*	Chalcocite ()*	Chrysotile ()*	Covellite ()*
Delindeite ()*	Digenite ()*	Diopside ()*	Djurleite ()*	Fresnoite ()*
Glaucophane ()*	Joaquinite-(Ce) ()*	Jonesite ()*	Natrolite ()*	Neptunite ()*
Orthojoaquinite-(Ce) ()*	Perovskite ()*	Pyrite ()*	Serandite ()*	Silver ()*
Vesuvianite ()*

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: Ag Al Ba C Ca Ce Cl Cu F Fe H K Li Mg Mn Na Nb O S Si Ti W

Elements from minerals reported directly at this locality: Ag Al Ba C Ca Ce Cl Cu F Fe H K Li Mg Mn Na Nb O S Si Ti W

Structural Groups for minerals in this locality:
Amphibole Analcime Aragonite Baotite Benitoite Calcite Clay Copper Covellite Digenite
Feldspar Garnet Joaquinite Melilite Natrolite Neptunite None Not in a structural group Pectolite Perovskite
Pyrite Pyroxene Serpentine Vesuvianite

31 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	5.3	3419
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	5.3	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	5.3	8803
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	5.3	1627
Anatase ()*	Not in a structural group	TiO₂	5.3	2162
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	5.3	1534
Aragonite ()*	Aragonite	Ca(CO₃)	5.3	3250
Baotite ()*	Baotite	Ba₄(Ti,Nb,W)₈O₁₆(SiO₃)₄Cl	5.3	27
Bario-orthojoaquinite ()*	Joaquinite	Ba₄Fe²⁺₂Ti₂O₂(SiO₃)₈·H₂O	5.3	2
Barioperovskite ()*	Perovskite	BaTiO₃	5.3	1
Benitoite ()*	Benitoite	BaTiSi₃O₉	5.3	20
Calcite ()*	Calcite	Ca(CO₃)	5.3	27770
Chalcocite ()*	None	Cu₂S	5.3	5707
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	5.3	951
Covellite ()*	Covellite	CuS	5.3	4165
Delindeite ()*	None	Ba₂Ti₂(Na₂ )Ti(Si₂O₇)₂(OH)₂(H₂O)₂O₂	5.3	4
Digenite ()*	Digenite	Cu_1.8S	5.3	1027
Diopside ()*	Pyroxene	CaMgSi₂O₆	5.3	4135
Djurleite ()*	None	Cu₃₁S₁₆	5.3	300
Fresnoite ()*	Melilite	Ba₂TiO(Si₂O₇)	5.3	17
Glaucophane ()*	Amphibole	Na₂(Mg₃Al₂)Si₈O₂₂(OH)₂	5.3	286
Joaquinite-(Ce) ()*	Joaquinite	NaBa₂Fe²⁺Ti₂Ce₂(Si₄O₁₂)₂O₂(OH)·H₂O	5.3	11
Jonesite ()*	Not in a structural group	KBa₂Ti₂(Si₅Al)O₁₈·nH₂O	5.3	2
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	5.3	1236
Neptunite ()*	Neptunite	KNa₂LiFe²⁺₂Ti₂Si₈O₂₄	5.3	49
Orthojoaquinite-(Ce) ()*	Joaquinite	NaBa₂Fe²⁺Ce₂Ti₂(SiO₃)₈O₂(O,OH)·H₂O	5.3	3
Perovskite ()*	Perovskite	CaTiO₃	5.3	495
Pyrite ()*	Pyrite	FeS₂	5.3	39462
Serandite ()*	Pectolite	NaMn²⁺₂Si₃O₈(OH)	5.3	38
Silver ()*	Copper	Ag	5.3	5186
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀	5.3	1395

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Hg-00045	5.3	0		?-?						Yes		Calomel, Cinnabar, Clearcreekite, Deanesmithite, Edgarbaileyite, Edoylerite, Gianellaite, Hanawaltite, Mercury, Metacinnabar, Montroydite, Mosesite, Peterbaylissite, Schuetteite, Szymanskiite, Tedhadleyite, Terlinguaite, Tiemannite, Wattersite, Eglestonite	Hg	6418	New Idria District, Diablo Range, San Benito Co., California, USA	California Mercury Occurrences	Studemeister (1984)	10.1007/BF00199786	MD19_202

Sample	Source Locality	Reference URL
FKM-244	California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Santa Rita Peak, New Idria District, Diablo Range, San Benito Co., California, USA	https://www.rockptx.com/fkm-226-to-fkm-250/#FKM-244
R060350	California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Santa Rita Peak, New Idria District, Diablo Range, San Benito Co., California, USA	https://rruff.info/R060350
R050332	California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Santa Rita Peak, New Idria District, Diablo Range, San Benito Co., California, USA	https://rruff.info/R050332
R120101	California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Santa Rita Peak, New Idria District, Diablo Range, San Benito Co., California, USA	https://rruff.info/R120101
R070735	California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Santa Rita Peak, New Idria District, Diablo Range, San Benito Co., California, USA	https://rruff.info/R070735
R070288	California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Santa Rita Peak, New Idria District, Diablo Range, San Benito Co., California, USA	https://rruff.info/R070288

All locality data graciously provided by mindat.org

All age data...