Showcase  11
March 27, 2019

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  Datolite

Caledonia mine
Ontonagon County
Michigan

Very fine datolite filled with native copper that is especially dense around the outer edges.
3.6 x 3.0 x 1.1cm

TM 21-1085

SOLD
     
     
     
     
     
     
     
     
~   ~
     
     
     
     
     
     
  Copper crystals

White Pine mine
Ontonagon County
Michigan

Unusual specimen of copper crystals. The collector that provided this specimen called it his "Copper Rose".
14.3 x 7.1 x 1.2cm


TM 19-841

SOLD
     
     
     
     
     
     
     
  TM 19-841
     
     
     
     
     
     
     
  TM 19-841
     
     
     
     
     
     
     
~   ~
     
     
     
     
     
     
     
     
  Calcite crystals

Quincy mine
Houghton County
Michigan


Nice cabinet-size specimen with a vug of clear calcite crystals surrounded by tenorite-coated copper.
7.6 x 6.2 x 6.6cm

TM 75-527


$85.00
     
     
     
     
     
     
     
     
     
     
     
     
     
     
  TM 75-527
     
     
     
     
     
     
     
     
     
     
     
~    ~
     
     
     
     
     
     
  Datolite

Connecticut mine
Keweenaw County
Michigan

Fine pair of translucent datolites with white "ghosts" floating in the datolite.
4.2 x 3.5 x 1.5cm

TM 21-1086


SOLD
     
     
     
     
     
     
     
~    ~
     
     
     
     
     
     
     
     
  Copper crystals

Copper Falls Mine
Keweenaw County
Michigan

Excellent cabinet-size specimen of tenorite-coated and cuprite-coated copper crystals, with great crystals on both sides: displays well in both positions. Collected underground in 1977.

10.3 x 5.6 x 3.7cm

TM 19-842

SOLD
     
     
     
     
     
     
     
     
     
     
     
     
  TM 19-842
     
     
     
     
     
     
     
     
     
     
     
  TM 19-842
     
     
     
     
     
     
     
     
     
~   ~
     
     
     
     
     
     
     
  Calcite crystals

Mendota mine
Keweenaw County
Michigan

Very fine cabinet specimen with several vugs of calcite crystals. From a small exploration on Mount Bohemia in the Keweenaw that is now off-limits to collecting. The calcite fluoresces orange under uv.

12.5 x 7.2 x 6.2cm

TM 75-528

SOLD
     
     
     
     
     
     
     
     
     
     
  TM 75-528
     
     
     
     
     
     
     
     
     
     
  TM 75-528
     
     
     
     
     
     
     
     
     
~   ~
     
     
     
     



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