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:
Red Buttes, East Kramer Borate Area (East Kramer Colemanite Area), East Kramer District, San Bernardino Co., California, USA

Oldest recorded age at locality: 22
Youngest recorded age at locality: 18

mindat Locality ID: 273505
mindat URL: http://www.mindat.org/loc-273505.html

Tectonic Settings:

Total number of sublocalities beneath "Red Buttes, East Kramer Borate Area (East Kramer Colemanite Area), East Kramer District, San Bernardino Co., California, USA": 11
Total number of bottom-level sublocalities: 11

Number of Child Localities: 11
Child Localities:
Baxter Property
Rho A
Roll Prospect
Sunray Mid-Continent Oil Company Colemanite Deposit
Unnamed Au Placer Prospects [210]
Unnamed Au-Zn Prospects [1]
Unnamed Cu Prospect [38]
Unnamed Feldspar Occurrence [4]
Unnamed U Prospect [9]
Unnamed U Prospects [2]
Unnamed W Prospect [3]

Latitude: 34°48'41"N
Longitude: 117°33'56"W
Decimal Degree (lat, lon): 34.811388888889,-117.56555555556

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.

Calcite	None	Orpiment

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 C Ca H O S

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite None Orpiment

4 IMA Minerals at location:

Calcite ()*	Colemanite ()*	Orpiment ()*	Realgar ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Calcite ()*	Calcite	Ca(CO₃)	22	18	1	171560	27770
Colemanite ()*	None	CaB₃O₄(OH)₃·H₂O	22	18	2	171560,171562	144
Orpiment ()*	Orpiment	As₂S₃	22	18	1	171560	511
Realgar ()*	None	AsS	22	18	1	171560	712

2 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
	NAVDAT-19646	22	18	20±2					19646						273505	Red Buttes, East Kramer Borate Area (East Kramer Colemanite Area), East Kramer District, San Bernardino Co., California, USA		NAVDAT		NAVDAT
	NAVDAT-19649	22	18	20±2					19649						273505	Red Buttes, East Kramer Borate Area (East Kramer Colemanite Area), East Kramer District, San Bernardino Co., California, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...