Mine detail: Pilot Knob

Previously called ''

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Location

Lat / long:

37.61923, -90.63344

Resource(M)

Primary:	Iron
Ore:	Magnetite
Gangue:	Apatite, Barite, Chalcopyrite, Feldspar, Fluorite, Quartz, Tourmaline
Orebody form:	ROUGHLY PEAR-SHAPED
Discovery year:	1835

Production

Operation type:	Unknown
Production size:	Unknown
Development status:	Prospect
First production started:	1848

Geology

Host type:	Rhyolite
Associated type:	Rhyolite
Structure:	St. Francois Mountains, Footwall Porphyry Dips About 17 Degrees Sw Without Any Marked Undulations. The Beds Above The Contact Are Conformable.
Tectonic:	St. Francois Mountains
Alteration processes:	Sericitization, Silification, Hematitized

References

MRDS	W016790
DEP	10072191
Reference	{Deposit:: CRANE, G.W., 1912 , THE IRON ORES OF MISSOURI: MISSOURI BUREAU OF MINES AND GEOLOGY, 2D SER., V. 10 , P. 121 - 131 .}{Deposit:: HAYES, W.C. AND GUILD, PHILIP W., 1967 , METALLIC MINERAL RESOURCES IN: MINERAL AND WATER RESOURCES OF MISSOURI, V. 43 , 2D SERIES, P. 82 - 83 .}{Deposit:: STEIDTMANN, E., 1933 , THE IRON DEPOSITS OF PILOT KNOB, MISSOURI: 16TH INT. GEOL. CONG. GUIDEBOOK 2 , P. 68 - 73 .}{Deposit:: WINSLOW, A., HAWORTH, E., NASON, F., 1894 , A REPORT ON THE IRON MOUNTAIN SHEET INCLUDING PORTIONS OF IRON, ST. FRANCOIS AND MADISON COUNTIES: MISSOURI GEOLOGICAL SURVEY, V. 9 , SHEET REPT. NO. 3 , P. 61 - 66 .}{Production:: US BUREAU OF MINES, 1978}
Reporter	Weeks, Robert