Calcium molybdate, forming a series with Scheelite, often yellow and fluorescent. It's a stone of insight and manifestation, enhancing intuition and aiding in achieving goals.
Colorless, White, Grey, Yellow, Brown, Blue, Black, often fluoresces yellow
Powellite is classified as a molybdate minerals mineral which typically crystallizes in the tetragonal system. Its chemical formula is CaMoO4. Common crystal habits include flat tabular crystals often paper-thin on {001}, may be crusty to pulverulent or massive.