Dims: 3.5" x 2.5" x 1.4"(8.9 x 6.4 x 3.6 cm)
Wt: 4.90 oz.(138.8 g)
level 4, Los Remedios Mine, Taxco, Guerrero, Mexico
This beautiful specimen consists of several white dogtooth calcite crystals grown around a cluster of Pyrite crystals that, likely due to different impurities, has taken on a variety of colors and forms. Most of the material has a green tint to it, but this fades to a deep golden color in one area and some stray groups and crystals around the main cluster have a red color that makes me think of copper. Actually, a few of the small crystals may be copper, given their excellent octahedral and cubo-octahedral forms. It looks as if all of these crystals have this form to a degree. The crystals have the standard metallic luster and opacity of Pyrite, though they could conceivably be more chalcopyrite given their color range. They are quite small, as no single crystal exceeds 3 mm along an edge. The white calcites are in the scalenohedral "dogtooth" form, and though crystal faces are difficult to determine, they all have exceptional form and are surprisingly undamaged. Some of these crystals are arranged as end-to-end twins They are translucent and have an almost silky luster. They rest with the Pyrites on a bed of white, translucent quartz crystals that coat a base rock made of chert, or possibly a finely-grained quartzite. I am amazed at the excellence of the crystals' forms on this specimen.