Mine detail: Rainbow No. 4 Claim

Previously called ''

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Location

Lat / long:

43.72968, -103.69557

Resource(B)

Primary:	Mica, Feldspar, Beryllium
Ore:	Beryl, Feldspar, Mica
Gangue:	Garnet, Quartz, Tourmaline, Triphylite, Uraninite, Uranophane, Vanadinite
Orebody form:	DIKES

Production

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

Geology

Host type:	Mica Schist,Pegmatite
Associated type:	Pegmatite
Structure:	N20e

References

MRDS	D008121
DEP	10012475
Reference	{Deposit:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707.}{Deposit:: ROBERTS, W. L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKORA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18.}{Deposit:: USGS PP 247, P. 181-183.}{Production:: U.S. BUREAU OF MINES INFO CIRC 7707.}
Reporter	Barari, Rachel A.