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Silver Monument Mine (Silver Monument group; Black Range tunnel; Patented claim Silver Monument; Unpatented claims Cuba Libre; Oversight Nos. 1 and 2; Connection Nos. 1 and 2), Lookout Mountain, Chloride District (Apache District; Phillipsburg District; Black Range District), Black Range, Sierra Co., New Mexico, USAi
Regional Level Types
Silver Monument Mine (Silver Monument group; Black Range tunnel; Patented claim Silver Monument; Unpatented claims Cuba Libre; Oversight Nos. 1 and 2; Connection Nos. 1 and 2)Mine
Lookout MountainMountain
Chloride District (Apache District; Phillipsburg District; Black Range District)Mining District
Black RangeMountain Range
Sierra Co.County
New MexicoState
USACountry

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Key
Latitude & Longitude (WGS84):
33° 20' 6'' North , 107° 48' 29'' West
Latitude & Longitude (decimal):
Locality type:


A former Cu-Au-Ag-Pb-Zn occurrence/mine located in sec. 19, T11S, R9W, NMM, 2.4 km (1.5 miles) SE of Lookout Mountain (coordinates of record), on the East flank of the Black Range, S side of Chloride Creek in the Gila National Forest (about 36 miles N65W of Truth or Conseqences), on private (located claim) land in a National Forest area. Discovered and first produced in 1885. One patented claim covers 16.89 acres (mineral survey No. 485), and 5 unpatented claims cover about 70 acres. Owned by the Silver Bar Mining Company, New Mexico (1974). Operated by the Louisiana Land and Exploration Co., 1600 Broadway, Denver, Colorado 80202 (1974). Operated by Ira M. Young, New Mexico (1974). MRDS database stated accuracy for this location is 100 meters.

Mineralization is a Pliocene deposit hosted in andesite. The ore body strikes E-W, dips 70N at a thickness of 2.44 meters. The deposits occur as shoots in a vein ranging from 2 to 8 feet wide. 3 shoots exposed in the mine workings pitch steeply to the E. Harley reported surface outcrops indicating at least 3 more shoots. The main mass of the vein consists of brecciated and altered andesite. Controls for ore emplacement included mineralized solutions Rising along a fault zone and localized in fissures. Local alteration includes chloritization, kaolinitization, and propylitized & silicified andesite. Local rocks include andesite and basaltic andesite flows and associated volcaniclastic units.

Workings include underground openings with a length of 1,219.2 meters, and an overall depth of 144.78 meters. Workings reported in 1934 included 1 adit 1,650 feet long, 5 drift levels with about 100 foot vertical separation intervals, 2 vertical shafts about 475 feet deep, extensive stoping and numerous raises.

Production data are found in: Harley, G. T. (1934).

The approximate value of production from 1880 to 1932 was reported to be $415,000 (period values).

Analytical data results: A compilation of assay results gave values ranging from 6 to 54 ounces Ag/ton; 0.01 to 0.5 ounce Au/ton; 1 to 10% Cu. High alumina and Fe content make the crude ore undesirable for use as a flux or dilutent.
Alteration: Chloritized, Kaolinized, Propylitized And Silicified Andesite.

Commodity: General analytical data from nmbmmr general data file.

Deposit: Deposits occur As shoots in a vein ranging from 2 ft. To 8 ft. Wide. Three shoots exposed in the mine workings pitch steeply to the east and g.t. Harley, 1934, reported surface outcrops indicating at least three more shoots. The main mass of the vein consists of brecciated and altered andesite. One patented claim covering 16.89 acres mineral survey number 485 and five unpatented claims covering about 70 acres. Discovery year: 1880's

Development: Louisiana land and exploration began a reconnaissance program in 1974 consisting of mapping, sampling and geochemical surveying.

Geology: For regional geology see black range district.

Ore(s): Mineralized Solutions Rose Along Fault Zone And Localized In Fissures.

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


18 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:

Acanthite
Formula: Ag2S
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Argentite'
Formula: Ag2S
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Azurite
Formula: Cu3(CO3)2(OH)2
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico
Bornite
Formula: Cu5FeS4
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Calcite
Formula: CaCO3
Reference: Jerry Cone Collection; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcocite
Formula: Cu2S
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcopyrite
Formula: CuFeS2
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chlorargyrite
Formula: AgCl
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Chlorite Group'
Description: Occurs as an alteration product.
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10011710.
Covellite
Formula: CuS
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Cuprite
Formula: Cu2O
Reference: Minerals of New Mexico 3rd ed.
Delafossite
Formula: CuFeO2
Reference: Minerals of New Mexico 3rd ed.
Freibergite
Formula: (Ag,Cu,◻)10Fe2+2Sb4S12
Reference: Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
Galena
Formula: PbS
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Gold
Formula: Au
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Description: Occurs as an alteration product.
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10011710.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Pyrite
Formula: FeS2
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico
Silver
Formula: Ag
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico
Sphalerite
Formula: ZnS
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Tetrahedrite'
Formula: Cu6(Cu4X2)Sb4S13
Reference: NMBMMR Bull 10 The Geology and Ore Deposits of Sierra County, New Mexico; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Freibergite2.GB.05(Ag,Cu,◻)10Fe2+2Sb4S12
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
'Tetrahedrite'2.GB.05Cu6(Cu4X2)Sb4S13
Group 3 - Halides
Chlorargyrite3.AA.15AgCl
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Delafossite4.AB.15CuFeO2
Group 5 - Nitrates and Carbonates
Azurite5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified Minerals, Rocks, etc.
'Argentite'-Ag2S
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Silver1.1.1.2Ag
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
Freibergite3.3.6.3(Ag,Cu,◻)10Fe2+2Sb4S12
'Tetrahedrite'3.3.6.1Cu6(Cu4X2)Sb4S13
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
Group 7 - MULTIPLE OXIDES
ABX2
Delafossite7.1.1.1CuFeO2
Group 9 - NORMAL HALIDES
AX
Chlorargyrite9.1.4.1AgCl
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Unclassified Minerals, Mixtures, etc.
'Argentite'-Ag2S
'Chlorite Group'-
Kaolinite-Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
H AzuriteCu3(CO3)2(OH)2
H MalachiteCu2(CO3)(OH)2
H KaoliniteAl2(Si2O5)(OH)4
CCarbon
C AzuriteCu3(CO3)2(OH)2
C MalachiteCu2(CO3)(OH)2
C CalciteCaCO3
OOxygen
O AzuriteCu3(CO3)2(OH)2
O MalachiteCu2(CO3)(OH)2
O CupriteCu2O
O DelafossiteCuFeO2
O CalciteCaCO3
O KaoliniteAl2(Si2O5)(OH)4
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si KaoliniteAl2(Si2O5)(OH)4
SSulfur
S Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
S BorniteCu5FeS4
S ChalcopyriteCuFeS2
S AcanthiteAg2S
S ChalcociteCu2S
S CovelliteCuS
S PyriteFeS2
S TetrahedriteCu6(Cu4X2)Sb4S13
S ArgentiteAg2S
S GalenaPbS
S SphaleriteZnS
ClChlorine
Cl ChlorargyriteAgCl
CaCalcium
Ca CalciteCaCO3
FeIron
Fe Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe DelafossiteCuFeO2
CuCopper
Cu Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
Cu AzuriteCu3(CO3)2(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu ChalcociteCu2S
Cu CovelliteCuS
Cu TetrahedriteCu6(Cu4X2)Sb4S13
Cu CupriteCu2O
Cu DelafossiteCuFeO2
ZnZinc
Zn SphaleriteZnS
AgSilver
Ag Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Ag AcanthiteAg2S
Ag SilverAg
Ag ChlorargyriteAgCl
Ag ArgentiteAg2S
SbAntimony
Sb Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Sb TetrahedriteCu6(Cu4X2)Sb4S13
AuGold
Au GoldAu
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A) In-text Citation No.
Lindgren, W., Graton, L. C., Schrader, F. C., & Hill, J. M. (1910), The ore deposits of New Mexico, USGS Professional Paper No. 68: 260-266.
Harley, G. T. (1934), The Geology and Ore Deposits of Sierra County, New Mexico, New Mexico Bureau of Mines Bulletin 10: 87.
Larsen, M.E. (1975) Geology and Ore Deposits of the Silver Monument and New Era Mines, Sierra County, New Mexico, MS thesis, University of texas at El Paso, 54 pp.
Northrop, S.A. and LaBruzza, F.A. (1996), Minerals of New Mexico, revised Third Edition.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10011710 & 10224298.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0350510319
NMBMMR file data.
LINDGREN, W., GRATON, L.C. AND GORDON, C.H., (1910) USGS PP 68, P. 260-266
HARLEY, G.T., (1934) NMBMMR BULL 10, P. 72-90

Other Databases

USGS MRDS Record:10011710

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

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