Little Gem Turquoise

Past Producer in Lander county in Nevada, United States with commodity Gemstone

Geologic information

Identification information

Deposit ID 10044868
MRDS ID M232487
Record type Site
Current site name Little Gem Turquoise
Alternate or previous names Cracker Jack

Geographic coordinates

Geographic coordinates: -116.70815, 40.31991 (WGS84)
Relative position 1 1/2 MILES WEST OF TENABO
(click for info)

Geographic areas

Country State County
United States Nevada Lander

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 028N 047E 07 Nevada

Commodities

Commodity Importance
Gemstone Primary

Materials information

Materials Type of material
Turquoise Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Late Ordovician
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert
    Rock unit name Valmy Formation
    Rock description Valmy Formation

Nearby scientific data

(1) -116.70815, 40.31991

Geologic structures

Type Description Terms
Regional Deposit In Upper Plate Of Roberts Mountain Thrust
Local Imbricate Thrusts And High Angle Basih Range Faults

Ore body information

  • General form TABULAR

Comments on the geologic information

  • TURQUOISE OCCURS IN BOTH GRAY SHALE AND WHITE TUFF WHICH STRIKE N 40 W AND DIP 20 E, WITH INTENSE FOLDING IN SOME AREAS. THE SHALE CONTAINS BOTH GREEN & BLUE TURQUOISE, WHITE THE TUFF CONTAINS BLUE TURQUOISE.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No

Mining district

District name Bullion

Comments on the workings information

  • PROSPECT PITS, CUTS, SHALLOW UNDERGROUND WORKINGS

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M232487

Bibliographic references

  • Production

    MORRISSEY, F.R., (1968)

General comments

Subject category Comment text
Deposit THE MINE IS ON THE CREST OF A SOUTHERLY TRENDING RIDGE. DEVELOPEMENT CONSISTS OF NUMEROUS PROSPECTS PITS, CUTS, AND SHALLOW UNDERGROUND WORKINGS ALONG THE CREST OF THE RIDGE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1980 Kirkham, Richard A. Nevada Bureau of Mines and Geology