Case 12

Kinoite

Saint Louis Mine, Houghton County, Michigan Great example of this mineral from a new locality for it. The blue kinoite is visible in the white calcite without any magnification. 9.0 x 8.7 x 5.2cm SOLD TM75-663

Datolite

Mandan Gravel Pit, Keweenaw County, Michigan Very nice medium-size datolite from this well known locality. Good color set off by the white borders. 6.0 x 5.2 x 1.5cm SOLD TM21-1333

Copper Crystals

Cliff Mine, Keweenaw County, Michigan Outstanding cabinet specimen that is crystallized front & back, and has a great patina. Tough to get Cliff pieces this good. 9.1 x 8.0 x 1.9cm $315 TM19-999

Datolite

Delaware Mine, Keweenaw County, Michigan Very rare (from the Delaware) translucent yellow datolite in perfect condition. 3.3 x 2.5 x 1.1cm SOLD TM21-1334

Copper Crystals

Lake Superior Copper District, Michigan Very nicely crystallized miniature that is displayable several ways. 3.4 x 3.3 x 2.0cm $45 TM19-1000

Copper after Datolite

Iroquois Mine, Keweenaw County, Michigan Group of datolites that have been completely replaced by copper. Previously only found at the Northwestern and Drexel mines. 6.6 x 3.2 x 3.3cm SOLD TM75-664 Fluorite Silver River Locality, Keweenaw County, Michigan The green fluorite fluoresces blue and the calcite fluoresces orange under UV light. 1.4 x 1.2 x 1.1cm SOLD TM75-665