Mine detail: Sierra Magnesite Mine

Previously called 'Betty
*eal Pit, Greenstone Pit, June 1 Pit, June 2 Pit, Capella Pit,Duplex Pit, Bluestone ClaimNo. 1 & No. 2 Claims, Share Crop.'

<< Back to the map

Location

Lat / long:

38.86659, -117.88427

Resource(M)

Primary:	Magnesite
Secondary:	Tungsten, Gold, Silver, Lead
Tertiary:	Copper
Ore:	Magnesite, Scheelite, Sphalerite
Gangue:	Calcite, Forsterite, Limonite, Serpentine, Talc

Production

Operation type:	Unknown
Production size:	Medium
Development status:	Past Producer

Geology

Host rock:	Luning Formation
Host type:	Dolomite
Associated type:	Diorite
Structure:	The Luning Formation Is The Upper Plate Of The Paradise Thrust Fault.
Alteration processes:	The Dolomite Has Been Altered By Thermal And Dynamothermal Metamorphism.

References

MRDS	D001283
DEP	10008840
Reference	{Deposit:: LEMMON, D.M., UNPUBLISHED DATA.}{Deposit:: LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.}{Deposit:: NBMG BULL. 105, STAGER H.K. AND TINGLEY, J.V. (IN PREP. JAN. 1984)}{Deposit:: CALLAGHAN, E, 1933, BRUCITE DEPOSIT=NBMG BULL. 19 (OLD VOLUME 27, PRIOR TO NUMBERING REVISION AS NBMG BULLETINS).}{Deposit:: SCHILLING, JH, 1968, THE GABBS MAGNESITE-BRUCITE DEPOSITS IN RIDGE, J.D. (EDITOR), ORE DEPOSITS OF THE U.S., 1937-1967, V. 2, GRATON-SALES VOLUME, NEW YORK, AIMMPE, P. 1607-1622.}{Production:: KLEINHAMPL, 1980; NBMG BULL. 105, STAGER, H.K. AND TINGLEY, J.V. (IN PREP. JAN. 1984)}
Reporter	Elliott, James E., Blaskowski, Michael J. (Elliott, James E.), Jones, David A. (Usgs-Mio)