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:
Yucca Grove (Pass Alto; Halloran Summit), Halloran Springs District, San Bernardino Co., California, USA

Oldest recorded age at locality: 4.433
Youngest recorded age at locality: 3.627

mindat Locality ID: 220980
mindat URL: http://www.mindat.org/loc-220980.html

Tectonic Settings:

Total number of sublocalities beneath "Yucca Grove (Pass Alto; Halloran Summit), Halloran Springs District, San Bernardino Co., California, USA": 18
Total number of bottom-level sublocalities: 18

Number of Child Localities: 18
Child Localities:
Calmosil Mine (Calmasil)
Chesterfield & Old Gold Group
Coin Stock Group (Coin Block Group)
Contact Claim
Gladding McBean Occurrence
Gods Mine Prospect
Gold Bar Group
Lost Lead Mine (Lost Lead Group)
Prince Group
Squaw T Placers Claims
Telegraph Mine (Telegraph Extension Claim)
Toltec Mine
Unnamed Au Prospect [150]
Unnamed Baryte Prospect [7]
Unnamed Cu Prospect [62] (Unnamed Mine Shaft)
Utah Group
Yucca Mine (Pomona Mine; Desert Talc And Clay Mine; Yucca Grove Mine)
Yucca Palm Group

Latitude: 35°23'57"N
Longitude: 115°48'34"W
Decimal Degree (lat, lon): 35.399166666667,-115.80944444444

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.

Baryte	Calcite	Clay	Clinozoisite	Copper	Epidote	None	Quartz	Sulphur	Talc
Turquoise

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 Au Ba C Ca Cu Fe H Mg O P S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Baryte Calcite Clay Clinozoisite Copper Epidote None Quartz Sulphur Talc
Turquoise

9 IMA Minerals at location:

Baryte ()*	Calcite ()*	Epidote ()*	Gold ()*	Quartz ()*
Siderite ()*	Sulphur ()*	Talc ()*	Turquoise ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Baryte ()*	Baryte	Ba(SO₄)	1	171776	11547
Calcite ()*	Calcite	Ca(CO₃)	1	171773	27770
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	171770	8173
Gold ()*	Copper	Au	4	171765,171770,171771,171778	30554
Quartz ()*	Quartz	SiO₂	2	171770,171773	61156
Siderite ()*	Calcite	Fe(CO₃)	1	171773	6417
Sulphur ()*	Sulphur	S	1	171773	2045
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	3	171763,171767,171779	3337
Turquoise ()*	Turquoise	CuAl₆(PO₄)₄(OH)₈·4H₂O	1	171774	484

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
	NAVDAT-57603	4.433	3.627	4.03±0.403					57603						88337	Contact Claim, Yucca Grove (Pass Alto; Halloran Summit), Halloran Springs District, San Bernardino Co., California, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...