22-5-006: altered sandstone - Michigan District - Mass Mine

Details

Specimen Number22-5-006Alternate NumberMass-3CommentsThis sample v. different from Mass-1 and Mass-2 in that host appears to be a sediment; still dominated by quartz + epidote.In Teaching CollectionNoMineral(s)epidotequartzRock Namealtered sandstoneDistrictKeweenawMineMassExternal LinkMindatDeposit TypeKeweenaw CopperGeo-Coords^[1]Reference MaterialACL-143: White, W.S., 1966, Tectonics of the Keeweenaw Basin, Western Lake Superior Region; U.S. Geol. Surv. Prof. Paper 524-E, Washington, D.C., 22 p.

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22-5-006: altered sandstone - Michigan District - Mass Mine

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22-5-006: altered sandstone - Michigan District - Mass Mine