Star Mica Metamorphic Rock with Quartz | 28.2g | Muscovite | Brazil | SO24 autopostr_pinterest_75816 quartz forms hexagonal prisms

quartz forms hexagonal prisms

vertical face on the larger mass

Product ID: MGPK3643

Name: Biotite Mica

Star Mica Metamorphic Rock with Quartz | 28.2g | Muscovite | Brazil | SO24 autopostr_pinterest_75816 quartz forms hexagonal prismsThis is a specimen of Star Mica or Muscovite and Quartz cluster. These clusters show crystals that grow in sheets or book formations. It is silvery gold with good transparency when held up to the light. The name Muscovite comes from the term Muscovy Glass which was a name for the thick sheets of Mica used as a substitute for glass Russia. The name Mica is derived from the Greek word that means to split. On this nice specimen, the matrix faces are