Home›Rocks and Minerals›Minerals›Strunz Class›Carbonates and NitratesBrowse ByCarbonates and NitratesCarbonates and NitratesComments (0)Reader Challenges (0)Carbonates and NitratesFilter Results3 entriesCrystal SystemAllMonoclinic Crystal System (1)Orthorhombic Crystal System (1)Trigonal Crystal System (1)HardnessAll3.75 to 5.5 Mohs (2)LustreAllEarthy (2)Silky (1)Vitreous (2)ColourAllBlue or Purple (1)Brown (1)Colourless or White (1)Green (2)Grey or Black (1)Orange or Yellow (1)Red or Pink (1)Where FoundAllAustralia (1)Democratic Republic of the Congo (1)France (1)Russia (1)UseAllGemstone (1)Sculpture and Ornamental (2)Formed By (Process)AllBiomineralization (2)Diagenesis (1)Hydrothermal Circulation (1)Hydrothermal Mineral Deposition (2)Metamorphism (2)Sedimentation (1)Supergene Processes (1)Weathering (1)Show ResultsBrowseCompareSelect all 3AragoniteCarbonates and NitratesCalciteCarbonates and NitratesMalachiteCarbonates and NitratesComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.