Muscovite var. Ball Peen Mica | Perky Box Specimen | Rare | Branchville, Connecticut Mordenite The mine stands at the

The mine stands at the collision of the Indo-Australian and the Pacific tectonic plates

Albite is thought to help with decision-making

Abitibi-Témiscamingue

This is a superb looking Stony-iron or Mesosiderite Vaca Muerta (Dead Cow) classified meteorite weighing 2

Muscovite var. Ball Peen Mica | Perky Box Specimen | Rare | Branchville, Connecticut Mordenite The mine stands at theThis 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