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Case 11

Datolite

Caledonia Mine Ontonagon County Michigan Excellent "zoned" datolite with the darker ring filled with native copper. Old piece, collected  in 1957. 3.9 x 3.3 x 1.4cm TM 21-1091 SOLD

Copper Crystals

Northwestern Mine #3 Keweenaw County Michigan Fine miniature of cuprite-coated copper crystals that displays great, both front and back. 4.0 x 3.5 x 1.6cm TM 19-847 $45.00

Prehnite

Centennial #3 Mine Houghton County Michigan A great find by a local collector. #3 was a conglomerate mine not known for minerals. He was following a bulldozer cut through the rock pile and notice that it cut through a zone of basalt that was full of mineralization. He carefully examined the basalt and recovered some very fine prehnites. 6.2 x 4.0 x 1.8cm TM 75-527 SOLD

Datolite

Delaware Mine Keweenaw County Michigan Beautiful stone with great color that you just can't find anymore since the pile's been crushed. 4.0 x 2.7 x 1.4cm TM 21-1092 SOLD

Copper Crystals

Cliff Mine Keweenaw County Michigan Gorgeous miniature of well-crystallized copper from the famous Cliff fissure mine. 4.5 x 2.0 x 1.5cm TM 19-848 SOLD

Calcite Crystals

White Pine Mine Ontonagon County Michigan Excellent group of calcites that are filled with cuprite and hematite inclusions. A couple of crystals are bruised, not detracting from overall aesthetics. 5.3 x 4.3 x 3.0cm TM 75-528 SOLD
Click on any picture to zoom in for closer detail.
Next Page: Case 12 Next Page: Case 12
© 2019 Tamarack Mineral Company. All Rights Reserved. Website by North Country Website Design.

Case 11

Datolite

Caledonia Mine Ontonagon County Michigan Excellent "zoned" datolite with the darker ring filled with native copper. Old piece, collected  in 1957. 3.9 x 3.3 x 1.4cm TM 21-1091 SOLD

Copper Crystals

Northwestern Mine #3 Keweenaw County Michigan Fine miniature of cuprite-coated copper crystals that displays great, both front and back. 4.0 x 3.5 x 1.6cm TM 19-847 $45.00

Prehnite

Centennial #3 Mine Houghton County Michigan A great find by a local collector. #3 was a conglomerate mine not known for minerals. He was following a bulldozer cut through the rock pile and notice that it cut through a zone of basalt that was full of mineralization. He carefully examined the basalt and recovered some very fine prehnites. 6.2 x 4.0 x 1.8cm TM 75-527 SOLD

Datolite

Delaware Mine Keweenaw County Michigan Beautiful stone with great color that you just can't find anymore since the pile's been crushed. 4.0 x 2.7 x 1.4cm TM 21-1092 SOLD

Copper Crystals

Cliff Mine Keweenaw County Michigan Gorgeous miniature of well- crystallized copper from the famous Cliff fissure mine. 4.5 x 2.0 x 1.5cm TM 19-848 SOLD

Calcite Crystals

White Pine Mine Ontonagon County Michigan Excellent group of calcites that are filled with cuprite and hematite inclusions. A couple of crystals are bruised, not detracting from overall aesthetics. 5.3 x 4.3 x 3.0cm TM 75-528 SOLD
Click on any picture to zoom in for closer detail.
Next Page: Case 12 Next Page: Case 12