Mine detail: Last Chance Mine

Previously called 'Lillian'

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Location: Gila County, Arizona, United States, North America
Lat / long: 33.46397, -110.77847
dep_id: 10027444
mrds_id: M003099
Commodity type: metallic
Major mineral: Manganese
Trace mineral: Silver
Operation type: Unknown
Deposit type: Vein
Production size: Small ammount of material produced
Development status: Producer
ore: Psilomelane, Pyrolusite
orebody_fm: IRREGULAR PODS
work_type: Surface/Underground
conc_proc: The Better Mineralized Part Of The Vein Has An Exposed Length Of 80 Ft. Or More
ore_ctrl: Manganese Ore Was Confined To A Zone That Follows The Hanging-Wall Side Of The Vein
Reporter: Gere, W., Hall, R. K. (Creasey, S. C.)
hrock_type: Diabase
yr_lst_prd: 1955
disc_yr: 1875
References:
  • Deposit:: FARNHAM, L.L., STEWART, L.A., AND DELONG, C.W., 1961, MANGANESE DEPOSITS OF EASTERN ARIZONA: USBM INFORMATION CIRCULAR 7990
  • Production:: USBM INFORMATION CIRCULAR 7990 , P. 68
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