Galena Crystal Specimens #2 in_stock_within_24h Amethyst is violet due to

Amethyst is violet due to iron impurities

Start with low temperature and gradually increase to medium and then high

Gold Tiger Eye Tumbled Stones

This wonderful specimen consists of large blades of lustrous deep orange-brown crystals with smaller crystals growing along them

Quartz is silicon and oxygen atoms present in igneous

Galena Crystal Specimens #2 in_stock_within_24h Amethyst is violet due toGalena Crystal Specimens #2 Galena is the natural mineral form of lead sulfide with a distinct silver color and a bright metallic luster. Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms. Galena is the most common mineral containing lead, and has been well known throughout the centuries. many crystals are found somewhat in between octahedral or cubic