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 Borate Company Property (Western Borax Mine; Western Mine), Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USA

Oldest recorded age at locality: 19
Youngest recorded age at locality: 19

mindat Locality ID: 212304
mindat URL: http://www.mindat.org/loc-212304.html

Tectonic Settings:

Total number of sublocalities beneath "California Borate Company Property (Western Borax Mine; Western Mine), Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 35°2'4"N
Longitude: 117°40'32"W
Decimal Degree (lat, lon): 35.034444444444,-117.67555555556

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	Berthierite	Copiapite	None

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: As B Ca Fe H Na O S Sb Si

Elements from minerals reported directly at this locality: As B Ca Fe H Na O S Sb Si

Structural Groups for minerals in this locality:
Alunite Berthierite Copiapite None

11 IMA Minerals at location:

Berthierite ()*	Copiapite ()*	Gerstleyite ()*	Howlite ()*	Mirabilite ()*
Natrojarosite ()*	Probertite ()*	Sassolite ()*	Searlesite ()*	Thénardite ()*
Tincalconite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Berthierite ()*	Berthierite	FeSb₂S₄	19	19	343
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O	19	19	382
Gerstleyite ()*	None	Na₂(Sb,As)₈S₁₃·2H₂O	19	19	3
Howlite ()*	None	Ca₂SiB₅O₉(OH)₅	19	19	36
Mirabilite ()*	None	Na₂(SO₄)·10H₂O	19	19	223
Natrojarosite ()*	Alunite	NaFe³⁺₃(SO₄)₂(OH)₆	19	19	254
Probertite ()*	None	NaCaB₅O₇(OH)₄·3H₂O	19	19	29
Sassolite ()*	None	B(OH)₃	19	19	31
Searlesite ()*	None	NaBSi₂O₅(OH)₂	19	19	34
Thénardite ()*	None	Na₂(SO₄)	19	19	299
Tincalconite ()*	None	Na₂B₄O₅(OH)₄·3H₂O	19	19	29

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
	Scott-OLEB41_307-0001	19	19	19		Age of deposition					Yes				80184	Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USA	Kramer Deposit	Grew et al. (2011)	10.1007/s11084-010-9233-y	OLEB41_307	the oldest reported kernite is 19 Ma in the Kramer

Sample	Source Locality	Reference URL
R060255	California Borate Company Property (Western Borax Mine; Western Mine), Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USA	https://rruff.info/R060255

All locality data graciously provided by mindat.org

All age data...