its color produced by manganese substituting for calcium in the crystal lattice

Chalcedony is cryptocrystalline quartz—silicon dioxide built up in microscopic fibers rather than visible crystals

color depth

An egg-shaped form cut to show the aventurescence from every direction at once

Included: a unakite heart

Selenite Angel Yellow Tiger Eye its color produced by manganeseAn angel figure carved from a single block of translucent gypsum, the wings and form emerging from the stone. Selenite is gypsum calcium sulfate dihydrate (CaSO4;2H2; O) formed in evaporite basins where ancient seas concentrated their mineral content and slowly crystallized over millions of years. Its softness (Mohs 2) is what allows carvers to work the detail of wings and drapery into a compact form. The stones translucency means the finished figure