Jamborite, Dolomite, Quartz

Specimen ID: 1WE-MAM

Jamborite : Ni2+1-xCo3+x(OH)2-x(SO4)x·nH2O
Dolomite : CaMg(CO3)2
Quartz : SiO2
As recorded:
State Route 37 roadcut, Harrodsburg, Monroe Co., Indiana, USA
Mindat locality:

Photo added to mindat.org

This rare alteration product of millerite is found in geodes where joint fractures in the Harrodsburg Limestone cause localized weathering of the rock. The dolomite crystals adjacent to the green jamborite are lemon yellow. Specimen in the collection of, and collected by, the photographer Alan Goldstein. (Found March, 2004)
Alan Goldstein - 26th November 2004
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