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Ninety Nine Mine, Goodsprings District, Spring Mts, Clark Co., Nevada, USA

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Latitude & Longitude (WGS84): 35° 57' 6'' North , 115° 27' 57'' West
Latitude & Longitude (decimal): 35.95193,-115.46584
GeoHash:G#: 9qmus8b74
Locality type:Mine
Köppen climate type:BWk : Cold desert climate


Sec 5 T23S R58E. Cu, Ag, Pb, Au, V.
Structure: Large Scale Overthrusting Extensive Ninety-Nine Fault Is Ne Of The Shaft

Deposit: Operation stopped in 1946 , most of remaining chalcocite is altered to cuprite and malachite ; info.src : 1 pub lit

Geology: Ore bodies were lenses of ferruginous chert w/associated malachite and chrysocolla within the dolomite breccia.

Ore(s): Fault Zone

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


6 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Calcite
Formula: CaCO3
Reference: USGS Bul 540
Chalcocite
Formula: Cu2S
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada; USGS Bul 540; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Chert'
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'commodity:Copper'
Formula: Cu
Reference:  
Cuprite
Formula: Cu2O
Reference: USGS Bul 540; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Cuprodescloizite'
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Descloizite
Formula: PbZn(VO4)(OH)
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada
Descloizite var: Cuprian Descloizite
Formula: Pb(Zn,Cu)VO4OH
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada
'Dolostone'
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'commodity:Gold'
Formula: Au
Reference:  
'commodity:Lead'
Formula: Pb
Reference:  
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: USGS Bul 540
Malachite
Formula: Cu2(CO3)(OH)2
Reference: USGS Bul 540; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'commodity:Silver'
Formula: Ag
Reference:  
'commodity:Vanadium'
Formula: V
Reference:  
'Wad'
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Chalcocite'2.BA.05Cu2S
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
Descloizite8.BH.40PbZn(VO4)(OH)
var: Cuprian Descloizite8.BH.40Pb(Zn,Cu)VO4OH
Group 9 - Silicates
'Chrysocolla'9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Unclassified Minerals, Rocks, etc.
'Chert'-
Cuprodescloizite-
Dolostone-
Limonite-(Fe,O,OH,H2O)
Wad-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Descloizite41.5.2.1PbZn(VO4)(OH)
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Unclassified Minerals, Rocks, etc.
'Chert'-
'Cuprodescloizite'-
Descloizite
var: Cuprian Descloizite
-Pb(Zn,Cu)VO4OH
'Dolostone'-
'Limonite'-(Fe,O,OH,H2O)
'Wad'-

List of minerals for each chemical element

HHydrogen
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H Descloizite (var: Cuprian Descloizite)Pb(Zn,Cu)VO4OH
H DescloizitePbZn(VO4)(OH)
H Limonite(Fe,O,OH,H2O)
H MalachiteCu2(CO3)(OH)2
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O CalciteCaCO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O Descloizite (var: Cuprian Descloizite)Pb(Zn,Cu)VO4OH
O CupriteCu2O
O DescloizitePbZn(VO4)(OH)
O Limonite(Fe,O,OH,H2O)
O MalachiteCu2(CO3)(OH)2
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
SSulfur
S ChalcociteCu2S
CaCalcium
Ca CalciteCaCO3
VVanadium
V Descloizite (var: Cuprian Descloizite)Pb(Zn,Cu)VO4OH
V DescloizitePbZn(VO4)(OH)
FeIron
Fe Limonite(Fe,O,OH,H2O)
CuCopper
Cu ChalcociteCu2S
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu Descloizite (var: Cuprian Descloizite)Pb(Zn,Cu)VO4OH
Cu CupriteCu2O
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn Descloizite (var: Cuprian Descloizite)Pb(Zn,Cu)VO4OH
Zn DescloizitePbZn(VO4)(OH)
PbLead
Pb Descloizite (var: Cuprian Descloizite)Pb(Zn,Cu)VO4OH
Pb DescloizitePbZn(VO4)(OH)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary - Miocene
0 - 23.03 Ma



ID: 3185380
Cenozoic sedimentary rocks

Age: Cenozoic (0 - 23.03 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Cisuralian - Pennsylvanian
272.95 - 323.2 Ma



ID: 3013102
Carbonate Shelf Sequence - Limestone, dolomite, siltstone, sandstone, and shale

Age: Paleozoic (272.95 - 323.2 Ma)

Stratigraphic Name: Bird Spring Formation; Riepe Spring Limestone; Ely Limestone

Description: Present in Elko, White Pine, Lincoln, and Clark Counties. This unit represents mostly Upper Pennsylvanian and Lower Permian rocks that have not otherwise been separated into units Psc or IPMbc. Unit includes unnamed Pennsylvanian and Lower Permian limestone and sandstone beds in Lincoln County, the Bird Spring Formation in Clark County, the Riepe Spring and Ely Limestones (undivided) in White Pine County, and limestone and dolomite rocks not otherwise assigned in Elko County. This unit lies depositionally below unit Psc and above the Ely Limestone (IPMbc) where it is mapped separately. Where unit IPMbc is not mapped separately in southern Nevada, the unit lies directly on Mississippian carbonate (Mc) and in White Pine County it rests on undivided Chainman and Pilot Shales and Joana Limestone (shown as either unit IPMcl or MDcl).

Comments: Original map source: Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000.

Lithology: Major:{limestone,dolostone,siltstone}, Minor:{sandstone,shale}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Hewett, (1931) , Geology and Ore Deposits of Goodsprings Quad., USGS Prof. Paper 162 , P. 108 - 109 .
Longwell, C. R., Pampeyan, E. H., Bowyer, B., Roberts, R. J., (1965) , Geology and Mineral Deposits of Clark Co. Nev. Bur. of Mines, Bull. 62 , P. 186 .


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