Protection

Citrine is silicon dioxide—quartz—colored warm yellow to amber by trace ferric iron in its structure

the walls thin enough to glow

and suited to both dressed-up and casual wear

Aragonite Bowl Price:5"Hx5.5"Lx1.25"D ProtectionA calcium carbonate bowl, cut into a heartpale and translucent at the edges. Aragonite is a polymorph of calcite: same chemical formula (CaCO), different crystal structure. Where calcite is trigonal, aragonite is orthorhombic, giving it a different cleavage pattern and slightly higher density. Mohs hardness 3. 54. It named in 1790 after the Aragon province of Spain, where it was first scientifically describedthough the mineral occurs worldwide in