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:
Kramer Junction (Beecher's Corners; Beechers Corners; Four Corners), East Kramer Borate Area (East Kramer Colemanite Area), East Kramer District, San Bernardino Co., California, USA

mindat Locality ID: 218171
mindat URL: http://www.mindat.org/loc-218171.html

Tectonic Settings:

Total number of sublocalities beneath "Kramer Junction (Beecher's Corners; Beechers Corners; Four Corners), 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:
395 Hill Deposit (Unnamed Boron Occurrence; Elephant Butte Deposit)
Big Ben Prospect
Carnotite No. 1
Four Corners No. 3; 4 & 5 Wells
Rho Colemanite Deposit
Test Hole No. 5
Unnamed As Occurrences [1]
Unnamed Au-Ag Prospect [37]
Unnamed Cu Prospect [7] (Unnamed Shaft Prospect)
Unnamed Howlite Occurrence [2]
Unnamed U Prospect [25]

Latitude: 35°0'44"N
Longitude: 117°31'13"W
Decimal Degree (lat, lon): 35.012222222222,-117.52027777778

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	Clay	Marcasite	None	Orpiment	Palygorskite	Pyrite	Smectite-vermiculite	Spinel	Veatchite

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 As B C Ca Fe H Mg Na O S Si Sr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Clay Marcasite None Orpiment Palygorskite Pyrite Smectite-vermiculite Spinel Veatchite

11 IMA Minerals at location:

Calcite ()*	Colemanite ()*	Greigite ()*	Howlite ()*	Marcasite ()*
Montmorillonite ()*	Orpiment ()*	Palygorskite ()*	Pyrite ()*	Realgar ()*
Veatchite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Calcite ()*	Calcite	Ca(CO₃)	1	171548	27770
Colemanite ()*	None	CaB₃O₄(OH)₃·H₂O	1	171548	144
Greigite ()*	Spinel	Fe²⁺Fe³⁺₂S₄	1	171548	62
Howlite ()*	None	Ca₂SiB₅O₉(OH)₅	1	171554	36
Marcasite ()*	Marcasite	FeS₂	1	171548	5674
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	1	171548	1508
Orpiment ()*	Orpiment	As₂S₃	2	171548,171551	511
Palygorskite ()*	Palygorskite Clay	(Mg,Al)₂Si₄O₁₀(OH)·4H₂O	1	171548	306
Pyrite ()*	Pyrite	FeS₂	1	171548	39462
Realgar ()*	None	AsS	2	171548,171551	712
Veatchite ()*	Veatchite	Sr₂B₁₁O₁₆(OH)₅·H₂O	2	171548,171550	12

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...