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Dwarves' Earth Treasures Online Museum:
Connecticut Datolites
Connecticut Mine, Delaware, Keweenaw CO., Michigan
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    Connecticut Mine was a western expansion of the Delaware Fissure and like Delaware mine, the Connecticut mine produced very little copper but quite abundant in calcite. The datolites from Connecticut are opaque white sometimes with red dots and some are more orangish due to higher concentration of reddish to orange dots. The colorful datolites from Connecticut often have been passed as coming from Delaware Mine where orange datolites are quite rare in Delaware Mine. It seems that the datolites have not been found from there lately even I found two the last two visits.


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I was surprised to find this pair at Connecticut
August 2010		 I don't know how to describe this color
but it might be a rare color
August 2009
Rare orange datolite White with cool arrangement of red dots
Orange color, Orange color
Salmon colored