Tumbled Amethyst - 100 grams Selenite Density: Anthracite is denser than

Density: Anthracite is denser than other types of coal due to its high carbon content

which is comparable to that of quartz

The patterns on its surface can vary in clarity

Luster: Purpurite often has a dull to vitreous luster

Tumbled Amethyst - 100 grams Selenite Density: Anthracite is denser thanLocality: Zambia *Requires 1 pound of Shipping space* Color: Amethyst ranges in color from pale lilac to deep purple. Hardness: Amethyst has a hardness of 7 on the Mohs scale, which means it is relatively hard and durable. Clarity: Amethyst is usually transparent to translucent, with some specimens exhibiting asterism or chatoyancy. Luster: Amethyst has a vitreous luster, meaning it has a glassy or shiny appearance. Density: The density of amethyst is