This is a specimen of Natrolite crystals from Wasson’s Bluff

Wolframite is an iron manganese tungsten oxide mineral

Dimensions:  44x35x15 mm / 1

Stilbite and Calcite on Chalcedony Druse

Specimen Size: Cabinet Sized

Star Mica Metamorphic Rock with Quartz | 43.2g | Muscovite | Brazil | SO24 Garnet This is a specimen ofThis 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