Indonesian Pyrite with Quartz B Obsidian microcrystalline quartz

microcrystalline quartz

and 2 inches in weight

Blue onyx is composed of silicon dioxide

while rhodonite is a silicate mineral usually having an abundance of Manganese giving it it's pink color

minerals (primarily calcite and aragonite) fill in the cracks

Indonesian Pyrite with Quartz B Obsidian microcrystalline quartzThis 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.