Carbonates
Browse gemstones by their mineral families and classifications. From quartz to corundum, explore the rich diversity of natural crystal structures, compositions, and geological origins that define each gem type.

Azurite
Hardness: 3.5
Deep blueAzure blueVivid blue

Calcite
Hardness: 3
ColorlessWhiteYellowOrangePinkGreenBlueBrown

Dolomite
Hardness: 3.5
WhitePinkGrayCreamTanGreen

Malachite
Hardness: 3.5
GreenDark GreenLight Green

Rhodochrosite
Hardness: 3.5
PinkRedBrownWhite

Smithsonite
Hardness: 4.5
GreenBlueYellowPinkWhiteBrown