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Black Lady Mine (Shell Canyon; Trenchard claim; Copper Contact lode; Coyote Mountain; Black Lady group; Cevn group), Carrizo Mountain, Coyote Mountains, Imperial Co., California, USAi
Regional Level Types
Black Lady Mine (Shell Canyon; Trenchard claim; Copper Contact lode; Coyote Mountain; Black Lady group; Cevn group)Mine
Carrizo MountainMountain
Coyote MountainsMountain Range
Imperial Co.County
CaliforniaState
USACountry

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Key
Latitude & Longitude (WGS84):
32° 47' 51'' North , 116° 1' 10'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Ocotillo266 (2011)7.0km
Jacumba Hot Springs561 (2014)25.6km
Boulevard315 (2011)28.0km
Ejido Jacumé290 (2013)28.1km
Rumorosa1,836 (2018)30.6km



A Cu-Ni occurrence/mine located in secs. 2, 3, and in the NW¼NW¼ sec. 11, T16S, R9E, SBM, 3.1 km (1.9 miles) S of Carrizo Mountain (coordinates of record) and 9.0 km (5.6 miles) NNW of Coyote Wells, E of Fossil Canyon, on Bureau of Land Management administered land (located claim) (now on wilderness land ?). Owned by Minnie & Lloyd Ross O'Callaghan (?), Ocotillo, California and by Toilmon Roark of....(incomplete data). MRDS database stated accuracy for this location is 100 meters.

NOTE: The geographic coordinates presented are taken from the topo map at the adit symbol in the NW¼NW¼ of the section stated. The MRDS file presents coordinates placing the locality further S in the section than that described in the same file.

Mineralization is hosted in peridotite. 3 principal mappable units underlie the area: 1) peridotite, mainly serpentinized olivine and enstatite; 2) Quartz diorite; and, 3) layered bentonitic claysand sandstone of the marine Miocene Imperial Formation. Serpentinized peridotite and quartz diorite were intruded by simple pegmatite bodies. 3 faults that may have localized nickel mineralization occur in the area and form boundaries between the 3 units. Nickel occurs in basic intrusive peridotites that intrude into metasedimentary rocks. Fractures and nearly vertical faults in the peridotites are the loci of accumulation of secondary iron minerals and some pale blue secondary nickel minerals including garnierite and morenosite. Metasediments occur along the NE side of the Elsmore fault zone for about 9 miles in the Coyote Mountains. Peridotite in the mineralized zone is highly altered. Associated rocks include diorite. Local rocks include pre-Cenozoic granitic and metamorphic rocks undivided.

Workings include unspecified surface and underground openings (the topo map reflects 1 adit symbol labeled "tunnel" at this point in sec. 11).

Analytical data results: Assays range between 0.14 and 1.99% Ni, averaging 0.66% Ni.

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Standard Detailed Strunz Dana Chemical Elements

Mineral List


5 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:

Antigorite
Formula: Mg3(Si2O5)(OH)4
Reference: Pemberton, H Earl " Minerals of California" Van Nostrand Reinholt Press
Enstatite
Formula: Mg2Si2O6
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033778.
Epsomite
Formula: MgSO4 · 7H2O
Reference: Pemberton, H Earl " Minerals of California" Van Nostrand Reinholt Press
'Fayalite-Forsterite Series'
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033778.
'Garnierite'
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033778.
Morenosite
Formula: NiSO4 · 7H2O
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033778.
Népouite
Formula: (Ni,Mg)3(Si2O5)(OH)4
Reference: Pemberton, H Earl " Minerals of California" Van Nostrand Reinholt Press
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033778.

List of minerals arranged by Strunz 10th Edition classification

Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Epsomite7.CB.40MgSO4 · 7H2O
Morenosite7.CB.40NiSO4 · 7H2O
Group 9 - Silicates
Antigorite9.ED.15Mg3(Si2O5)(OH)4
Enstatite9.DA.05Mg2Si2O6
Népouite9.ED.15(Ni,Mg)3(Si2O5)(OH)4
Unclassified Minerals, Rocks, etc.
'Fayalite-Forsterite Series'-
'Garnierite'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Epsomite29.6.11.1MgSO4 · 7H2O
Morenosite29.6.11.3NiSO4 · 7H2O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Enstatite65.1.2.1Mg2Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Antigorite71.1.2a.1Mg3(Si2O5)(OH)4
Népouite71.1.2b.3(Ni,Mg)3(Si2O5)(OH)4
Unclassified Minerals, Mixtures, etc.
'Fayalite-Forsterite Series'-
'Garnierite'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H AntigoriteMg3(Si2O5)(OH)4
H EpsomiteMgSO4 · 7H2O
H MorenositeNiSO4 · 7H2O
H Népouite(Ni,Mg)3(Si2O5)(OH)4
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
OOxygen
O AntigoriteMg3(Si2O5)(OH)4
O EpsomiteMgSO4 · 7H2O
O MorenositeNiSO4 · 7H2O
O Népouite(Ni,Mg)3(Si2O5)(OH)4
O EnstatiteMg2Si2O6
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
MgMagnesium
Mg AntigoriteMg3(Si2O5)(OH)4
Mg EpsomiteMgSO4 · 7H2O
Mg Népouite(Ni,Mg)3(Si2O5)(OH)4
Mg EnstatiteMg2Si2O6
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
AlAluminium
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si AntigoriteMg3(Si2O5)(OH)4
Si Népouite(Ni,Mg)3(Si2O5)(OH)4
Si EnstatiteMg2Si2O6
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
SSulfur
S EpsomiteMgSO4 · 7H2O
S MorenositeNiSO4 · 7H2O
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
NiNickel
Ni MorenositeNiSO4 · 7H2O
Ni Népouite(Ni,Mg)3(Si2O5)(OH)4
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Merrill, Frederick James Hamilton (1916), San Diego, Imperial Counties: California Mining Bureau. (Report 14): 14: 635-743; […(abstract): Geol. Zentralbl., Band 27: 395 (1922)]: 732.
Tucker, W. Burling (1926), Imperial, Inyo Counties: California Mining Bureau. (Report 22): 22: 266.
Troxel, B.W. and Weber, F.H. (1975), private communication to the USGS MRDS staff.
Rice, S.J. (1957c), Nickel, in: Mineral Commodities of California; California Division of Mines Bulletin 176, p. 396.
U.S. Bureau of Mines Report of Investigation 5566 (1960).
Chesterman, C.W. (1976), written communication USGS MRDS staff.
Morton, P.K. (1977) Mines and mineral resources of Imperial County, California. California Division of Mines and Geology County Report 7, 104 pp.: 25-26, 79-80.
U.S. Bureau of Land Management Mineral Survey No. 5107.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033778, 10236202 & 10260582.
U.S. Bureau of Mines Minerals Availability System/Mineral Industry Location System (MAS/MILS): file #0060250034 & 0060250349.

Other Regions, Features and Areas containing this locality

North America
Pacific PlateTectonic Plate

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