Indonesian Pyrite with Quartz B Obsidian This Nigerian specimen has tiny

This Nigerian specimen has tiny marcasite and calcite crystals on one side

frequently in combination with zeolites like apophyllite or as pseudomorphs after laumontite

which produce a silky sheen known as “girasol

Blue onyx is composed of silicon dioxide

” Girasol refers to the appearance of many different kinds of materials

Indonesian Pyrite with Quartz B Obsidian This Nigerian specimen has tinyThis specimen comes from a gold mine near West Kalimantan Indonesia. We DO NOT think there is any gold or silver, however, this piece does have a marvelous cluster of striated pyrite crystals on quartz. The matrix has been trimmed to site well in a display. Measuring 4. 8 in length, 1. 5 inches in height, 1. 3 inches in width. Weighing 2 pounds. Customer will receive the exact item pictured.