Home›Rocks and Minerals›Minerals›Crystal SystemBrowse ByCrystal SystemCrystal SystemComments (0)Reader Challenges (0)Crystal SystemFilter Results6 entriesStrunz ClassAllCarbonates and Nitrates (2)Oxides and Hydroxides (2)Phosphates, Arsenates and Vanadates (1)Silicates (6)HardnessAll3.75 to 5.5 Mohs (4)5.75 to 6.25 Mohs (2)6.5 to 6.75 Mohs (2)7 to 7.25 Mohs (3)7.5 to 8.5 Mohs (4)LustreAllAdamantine (1)Earthy (5)Metallic (1)Pearly (1)Silky (1)Vitreous (6)Waxy or Greasy (4)ColourAllBlue or Purple (6)Brown (5)Colourless or White (6)Green (6)Grey or Black (6)Orange or Yellow (6)Red or Pink (5)Where FoundAllAfghanistan (1)Australia (3)Brazil (2)Canada (1)Chile (1)China (2)Colombia (1)Democratic Republic of the Congo (1)Egypt (1)France (1)Greece (1)India (2)Iran (1)Madagascar (2)Mexico (2)Myanmar (2)Namibia (1)Nigeria (2)Pakistan (1)Russia (4)Sri Lanka (3)Tanzania (2)United States (3)Vietnam (1)Zambia (1)Zimbabwe (3)RarityAllAbundant (1)Common (1)Rare (2)Uncommon (1)UseAllCeramic and Glass Manufacture (1)Gemstone (6)Ore or Metal Extraction (1)Sculpture and Ornamental (2)Formed By (Process)AllBiomineralization (3)Diagenesis (2)Fractional Crystallization (5)Hydrothermal Circulation (3)Hydrothermal Mineral Deposition (6)Magmatism (5)Metamorphism (5)Metasomatism (3)Sedimentation (4)Serpentinization (1)Subduction (1)Supergene Processes (2)Ultra-High-Pressure Metamorphism (1)Volcanism (2)Weathering (2)Show ResultsCubic Crystal SystemCrystal System10 entriesHexagonal Crystal SystemCrystal System2 entriesMonoclinic Crystal SystemCrystal System6 entriesOrthorhombic Crystal SystemCrystal System6 entriesTriclinic Crystal SystemCrystal System2 entriesTrigonal Crystal SystemCrystal System6 entriesComments (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.