Case 8

Datolite

Ojibway mine Keweenaw County Michigan Beautiful datolite with very unusual color for an Ojibway stone. Most datolites from this mine don't come close to this color. The other half is in local collector Nicki Maynarich's datolite collection. 3.3 x 3.3 x 1.5cm TM21-1107 SOLD

Copper Crystals

Northwestern mine Keweenaw County Michigan Excellent crystallization on this small miniature that was etched out of calcite. 3.9 x 3.7 x 1.3cm TM19-863 SOLD

Copper Pipe Amygdules

Copper Falls mine Keweenaw County Michigan An oddity in the Copper District, and most if not all seem to come from the Copper Falls mine. These were recently collected underground and are some of the best I have seen. Looks great in a display case. 7.2 x 4.0 x 3.8cm TM75-537 SOLD

Datolite

Lake Superior Keweenaw County Michigan Beautiful specimen recovered by Bob Barron years ago from the depths of Lake Superior. 4.3 x 3.9 x 1.5cm TM21-1108 SOLD

Copper Crystals

Cliff Mine Keweenaw County Michigan Excellent cabinet specimen of branching copper crystals. Comes with a 7+ inch copper chiseling found on the same day, same pile. 15.2 x 12.1 x 1.1cm TM19-864 SOLD

Natrolite/Prehnite

Gratiot mine Keweenaw County Michigan Hard to come by specimen of natrolite crystals with a pink prehnite topping. Great addition to any Copper District collection and very difficult to obtain nowadays. 9.5 x 6.0 x 3.7cm TM75-538 SOLD

Datolite

C&H #21 mine Houghton County Michigan Unique set of datolites from #21 that are filled with copper veining and areas of solid copper. Almost reminds me of a copper agate, but is definitely datolite. 5.0 x 3.1 x 3.4cm TM21-1109 SOLD