Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Geyser lode, Ocotillo Mine Group, Yuma County, Arizona, USAi
Regional Level Types
Geyser lodeLode
Ocotillo Mine GroupGroup of Mines
Yuma CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
32° North , 113° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~98km
GRN:
N22W69
Type:
Lode
Köppen climate type:
BWh : Hot deserts climate
Mindat Locality ID:
57037
Long-form identifier:
mindat:1:2:57037:1
GUID (UUID V4):
0


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

3 valid minerals.

Detailed Mineral List:

ⓘ Calcite
Formula: CaCO3
Description: Cements brecciated biotite-andesite.
ⓘ 'K Feldspar'
Description: Microscopic in secondary quartz.
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
Description: Microscopic in secondary quartz.
ⓘ 'Limonite'
ⓘ Native Gold
Formula: Au
Description: As finely divided free gold in fractures and breccia with gouge, calcite & Fe & Mn oxides in andesitic volcanics.
ⓘ Quartz
Formula: SiO2
Description: Pseudomorphous after lamellar calcite.
ⓘ Quartz var. Chalcedony
Formula: SiO2
Description: Small nodules in the lode.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 4 - Oxides and Hydroxides
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Unclassified
ⓘ'K Feldspar
var. Adularia'		-KAlSi3O8
ⓘ'Limonite'-
ⓘ'K Feldspar'-

List of minerals for each chemical element

CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ QuartzSiO2
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
SiSilicon
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ QuartzSiO2
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
CaCalcium
Caⓘ CalciteCaCO3
AuGold
Auⓘ Native GoldAu

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Jones, E.L., Jr. (1915), A Reconnaissance in the Kofa Mountains, Arizona, USGS Bull. 620: 160-161
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