Properties & Information

Cinnabar

Cinnabar

CinnabarSCIENCE / MINERALOGYCinnabar is mercury sulfide, HgS, and the principal historical ore mineral of mercury. It crystallizes in the trigonal system and ranges from bright scarlet and vermilion red to...

Cinnabar

CinnabarSCIENCE / MINERALOGYCinnabar is mercury sulfide, HgS, and the principal historical ore mineral of mercury. It crystallizes in the trigonal system and ranges from bright scarlet and vermilion red to...

Chrysoprase

Chrysoprase

ChrysopraseSCIENCE / MINERALOGYChrysoprase is a translucent apple-green to deep green variety of chalcedony, the microcrystalline form of quartz. Its distinctive color is produced by trace nickel-bearing compounds and extremely fine...

Chrysoprase

ChrysopraseSCIENCE / MINERALOGYChrysoprase is a translucent apple-green to deep green variety of chalcedony, the microcrystalline form of quartz. Its distinctive color is produced by trace nickel-bearing compounds and extremely fine...

Chrysocolla

Chrysocolla

ChrysocollaSCIENCE / MINERALOGYChrysocolla is a blue-green copper-rich hydrous silicate material with variable composition and structural order. Much gem material is better described as a mineraloid or fine mixture rather than...

Chrysocolla

ChrysocollaSCIENCE / MINERALOGYChrysocolla is a blue-green copper-rich hydrous silicate material with variable composition and structural order. Much gem material is better described as a mineraloid or fine mixture rather than...

Chrysanthemum Stone

Chrysanthemum Stone

Chrysanthemum StoneSCIENCE / MINERALOGYChrysanthemum Stone is a decorative rock recognized by pale flower-like crystal patterns within a darker matrix. It is not one mineral species; depending on locality, the 'petals'...

Chrysanthemum Stone

Chrysanthemum StoneSCIENCE / MINERALOGYChrysanthemum Stone is a decorative rock recognized by pale flower-like crystal patterns within a darker matrix. It is not one mineral species; depending on locality, the 'petals'...

Chocolate Calcite

Chocolate Calcite

Chocolate CalciteSCIENCE / MINERALOGYChocolate Calcite is a trade/color name for brown to dark honey calcite, CaCO₃. It crystallizes in the trigonal system and retains calcite's perfect rhombohedral cleavage and strong...

Chocolate Calcite

Chocolate CalciteSCIENCE / MINERALOGYChocolate Calcite is a trade/color name for brown to dark honey calcite, CaCO₃. It crystallizes in the trigonal system and retains calcite's perfect rhombohedral cleavage and strong...

Chlorite on Quartz

Chlorite on Quartz

Chlorite on QuartzSCIENCE / MINERALOGYChlorite on Quartz consists of quartz crystals whose exterior surfaces became coated by chlorite-group minerals after or during late stages of quartz growth. Quartz is silicon...

Chlorite on Quartz

Chlorite on QuartzSCIENCE / MINERALOGYChlorite on Quartz consists of quartz crystals whose exterior surfaces became coated by chlorite-group minerals after or during late stages of quartz growth. Quartz is silicon...