Mine detail: Whiteware Clay

Previously called 'Lewistown Kaolinite'

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Location

Lat / long:

47.16186, -109.51802

Resource(N)

Primary:	Kaolin
Ore:	Kaolinite
Gangue:	Fluorite, Graphite, Gypsum, Magnetite, Opal, Orpiment, Pyrite, Realgar, Sericite
Orebody form:	IRREGULAR
Discovery year:	1936

Production

Operation type:	Unknown
Deposit type:	Replacement
Production size:	None
Development status:	Occurrence

Geology

Host rock:	Kootenai Formation
Host type:	Sandstone
Associated rock:	Porphyritic Leucorhyolite
Associated type:	Rhyolite
Structure:	Domal Uplift Of Sedimentary Rocks Related To Igneous Intrusion, Steeply Inclined Fault
Tectonic:	Area Of Isolated Uplifts In Great Plains
Alteration processes:	Arkose To Kaolinite

References

MRDS	W026534
DEP	10078278
Reference	{Deposit:: ROBY, R. N., AND ROBERTSON, A. F., 1949 , INVESTIGATION OF WHITEWARE CLAY DEPOSIT, FERGUS COUNTY, MONT.; US BUR MINES RI 4416 , 11 P.}{Deposit:: DOUGAN, C. W., 1947 , DICKITE - CLAY DEPOSIT OF FERGUS COUNTY, MONT. BUR MINES AND GEOL. MISC. CONTR. NO. 9 , 11 P.}{Deposit:: MILLER, R. N., 1959 , GEOLOGY OF THE SOUTH MOCCASIN MOUNTAINS, FERGUS COUNTY, MONTANA: MONT. BUREAU OF MINES AND GEOL. MEM. 37 , P. 37 - 40.}{Deposit:: 1942 DIREXPL USBM RI 4416}{Deposit:: SEE GENERAL REFERENCES}{Deposit:: 1947 DIREXPL MONT. BUR MINES AND GEOL MISC. CONTR. 9}{Reserve-Resource:: ROBY, R. N., AND ROBERTSON, A. F., 1949 , WHITEWARE CLAY DEPOSIT}
Reporter	Berg, Richard B. (Krohn, D. H.)