Some masses of native copper mixed with gem clear Calcite crystals, most of which are richly included. A complex specimen on an amygdaloidal basalt matrix having many cavities filled with micro crystals. These vugs hold many Epidote crystal clusters most being on contrasting salmon colored crystals of Microcline. Good looking by naked eye but really amazing with magnification, this has a good mixture of species and is classic upper Michigan material. Unfortunately we have no mine attribution but this looks like a perfect match to the famed Quincy Mine.
An excellent vintage Copper in Calcite from the famed Philadelphia Academy collection, and retains their original label. This also has labels from Collectors Edge and Carter Rich, and was for a time in the William Hladysz collection. The matrix here is mostly clear Calcite in clusters of crystals more or less aligned. The clear Calcite are colored red-brown by large amounts of included copper easily seen inside the crystals. In several areas the Copper crystals extend outside the Calcite. The main crystal is 1.2 CM and very well formed. In excellent condition, and much better looking in person.
Copper with and in Calcite
West Vein, Phoenix Mine, Phoenix, Keweenaw County
6.8 x 3.4 x 2 CM (cabinet)
Pre Holiday 2017
Esthetic and not typical at all! Native Copper in leafy tendrils holds and is inside very clear crystals of Calcite. The Calcite is in blocky cube forms with complex growth hills on some faces and colored by the inclusions a bright Copper hue. The Calcites are glassy and the whole composition is very attractive. Some contacts are noted mostly on the backside of the specimen, overall in fine condition. I have not seen another of this style in many years.