Crystal morphology: hexagonal crystal system. Crystals are often hexagonal, small barrel or needle-shaped. There are also crystal clusters, globular, granular and renal aggregates. It is often yellow-green, green, yellow, brown, orange-red and other colors. Resin to diamond luster, translucent. Hardness 3.5--4, specific gravity: 6.5-7.1. Hexagonal double cone crystals, the specimen is cylindrical aggregate, green, striped white and yellow. Resin - diamond luster. Brittle, unreasonable, hardness 3.5-4, relative density 6.5-7.1. When the quantity is large, it can be used as lead ore, and it can be used as a sign of lead prospecting deposits in geological prospecting.
