measuring 16 mm and weighing approximately 2

4gr / 34x13x11  |  0

especially because Arizona as a whole is renowned for producing some of the world’s finest wulfenite

At one time they where even quite common

Garnet is a stunning gemstone known for its rich color

Muscovite var. Ball Peen Mica | Perky Box Specimen | Rare | Branchville, Connecticut observed fall meteorite measuring 16 mm and weighingThis is a natural "Ball Peen" Mica specimen from Branchville, Connecticut. Instead of forming flat, book like sheets as muscovite usually does, mica specimens from the Branchville Mica Mine develop a rounded, bulbous termination resembling the rounded end of a ball peen hammer, from which its name is derived. The Branchville Mica Mine, which has been inactive since 1944 and is mostly flooded, is one of the most historically important mineral