Bismuth Crystal -B flower agate Pyrite is an iron sulfide

Pyrite is an iron sulfide mineral nicknamed "fool's gold" for its superficial resemblance to gold

This process is where quartz replaces crocidolite fibers (blue asbestos)

It is characterized by its pink orthoclase feldspar

and is usually a dark grey

and fluorescence make calcite a desirable mineral to collect

Bismuth Crystal -B flower agate Pyrite is an iron sulfideBismuth is a relatively rare metal found in the Earth's crust in hydrothermal veins, pegmatitic rocks, and sulfide ores. This piece has been heat treated to form a crystal. You will receive the exact piece as pictured. Dimensions: 3. 0 L x 2. 5 W x 1. 0 H inches Weight: 0. 35 lbs