Mine detail: Dobbins Claims

Previously called 'Jolly Roger'

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Location

Lat / long:

33.94533, -113.92384

Resource(M)

Primary:	Manganese
Ore:	Psilomelane, Pyrolusite
Orebody form:	TABULAR

Production

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

Geology

Host type:	Andesite
Associated type:	Andesite
Alteration processes:	The Manganese Oxides Occur As The Cementing Material Of Breccia And Which Replace In Part The Andesite Fragments. Psilomelane Is More Abundant At The Surface, But At Depths Of A Few Feet Pyrolusite Predominates

References

MRDS	M003877
DEP	10102541
Reference	{Deposit:: BUTLER, G.M.; 1930; MANGANESE ORE DEPOSITS IN ARIZONA; A.B.M. BULLETIN 127, P. 101}{Deposit:: JONES, E.L. JR.; RANSOME, F.L.; 1920; DEPOSITS OF MANGANES ORE IN ARIZONA; U.S.G.S. BULLETIN 710, P. 182}{Production:: A.B.M. BULLETIN 127, P. 101, U.S.G.S. BULLETIN 710, P. 182}
Reporter	Gere, W., Hall, R. K. (Creasey, S. C.), Bolm, Karen S.