Muscovite var. Ball Peen Mica | Perky Box Specimen | Rare | Branchville, Connecticut Mordenite most of these fragments under

most of these fragments under 20 grams

Albite is thought to help with decision-making

A 47 kg iron meteorite was reportedly found near Fredericksburg

This is an incredible slice of the Big Rock Donga meteorite (MB 71) found in Nullarbor

This specimen will come with a Canagem Collection specimen card and the original specimen card from the Carsten Giessler Collection (GipoMeteorites)

Muscovite var. Ball Peen Mica | Perky Box Specimen | Rare | Branchville, Connecticut Mordenite most of these fragments underThis 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