Muscovite var. Ball Peen Mica | Perky Box Specimen | Rare | Branchville, Connecticut Obsidian This is a stunning Canyon

This is a stunning Canyon Diablo classified meteorite specimen weighing 11

This is a great fragment of the NWA 1459  meteorite which is classified as a stone achondrite

Name:  Terminated Quartz and Microcline

An outstanding gem quality

Dimensions: 35x33x18 mm / 1

Muscovite var. Ball Peen Mica | Perky Box Specimen | Rare | Branchville, Connecticut Obsidian This is a stunning CanyonThis 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