and it is often found in association with minerals such as Barite
Their relatively unaltered state makes them valuable for studying the conditions and processes that existed during the earliest stages of planetary formation
Description: This dioptase specimen from the Congo shows deep green crystals set across a pale blue-green and dark brown matrix
producing both high-grade gem opal and more common material used for carving and study
the piece is reconstructed for display purposes
Ammolite - Fossil Specimen crystal with inclusions and it is often foundMined from: Bearpaw Formation, Lethbridge area, Alberta, Canada Era: Late Cretaceous Geological Age: 7075 mya Description: This one of a kind Ammolite fragment shows a preserved section of fossilized ammonite shell with a rough natural surface transitioning into a polished edge where flashes of color come through. Along the lower edge, the classic Ammolite iridescence is visible, displaying shifting tones of green, blue, and subtle hints of purple