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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St. Thomas Mining District, Clark County, Nevada, USAi
Regional Level Types
St. Thomas Mining DistrictMining District
Clark CountyCounty
NevadaState
USACountry

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Type:
Mining District
Mindat Locality ID:
36558
Long-form identifier:
mindat:1:2:36558:4
GUID (UUID V4):
0


A former salt-Na mining area along the Virgin River (now the Overton Arm of Lake Mead). Most localities have been inundated by Lake Mead.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

4 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘHalite3.AA.20NaCl
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘGlauberite7.AD.25Na2Ca(SO4)2
ⓘThénardite7.AD.25Na2SO4
ⓘGypsum7.CD.40CaSO4 · 2H2O

List of minerals for each chemical element

HHydrogen
Hⓘ GypsumCaSO4 · 2H2O
OOxygen
Oⓘ GlauberiteNa2Ca(SO4)2
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ ThénarditeNa2SO4
NaSodium
Naⓘ GlauberiteNa2Ca(SO4)2
Naⓘ HaliteNaCl
Naⓘ ThénarditeNa2SO4
SSulfur
Sⓘ GlauberiteNa2Ca(SO4)2
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ ThénarditeNa2SO4
ClChlorine
Clⓘ HaliteNaCl
CaCalcium
Caⓘ GlauberiteNa2Ca(SO4)2
Caⓘ GypsumCaSO4 · 2H2O

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Localities in this Region

USA

Other Regions, Features and Areas that Intersect

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

Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology
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