Home›Rocks and Minerals›Minerals›Formed By (Process)Browse ByFormed By (Process)Formed By (Process)Comments (0)Reader Challenges (0)Formed By (Process)Filter Results15 entriesStrunz ClassAllCarbonates and Nitrates (5)Oxides and Hydroxides (5)Phosphates, Arsenates and Vanadates (2)Silicates (8)Crystal SystemAllCubic Crystal System (10)Hexagonal Crystal System (6)Monoclinic Crystal System (9)Orthorhombic Crystal System (7)Triclinic Crystal System (3)Trigonal Crystal System (10)HardnessAll3.75 to 5.5 Mohs (5)5.75 to 6.25 Mohs (6)6.5 to 6.75 Mohs (4)7 to 7.25 Mohs (3)7.5 to 8.5 Mohs (5)LustreAllAdamantine (2)Earthy (8)Metallic (2)Pearly (5)Resinous (2)Silky (2)Vitreous (10)Waxy or Greasy (8)ColourAllBlue or Purple (9)Brown (8)Colourless or White (8)Green (10)Grey or Black (9)Orange or Yellow (8)Red or Pink (8)Where FoundAllAfghanistan (2)Australia (10)Brazil (5)Canada (4)Chile (2)China (4)Colombia (3)Democratic Republic of the Congo (2)Egypt (2)France (2)Greece (2)Guatemala (2)Honduras (2)India (6)Indonesia (2)Iran (2)Madagascar (6)Mexico (4)Myanmar (6)Namibia (3)New Zealand (2)Nigeria (5)Pakistan (2)Peru (2)Poland (2)Russia (9)Sri Lanka (4)Tanzania (4)United States (5)Vietnam (2)Zambia (4)Zimbabwe (6)RarityAllAbundant (2)Common (2)Rare (5)Uncommon (2)UseAllCeramic and Glass Manufacture (1)Gemstone (10)Ore or Metal Extraction (2)Sculpture and Ornamental (5)ScaleAllGlobal (1)Local (1)Regional (1)Show ResultsBrowseCompareBiomineralizationFormed By (Process)4 entriesDiagenesisFormed By (Process)3 entriesFractional CrystallizationFormed By (Process)15 entriesHydrothermal CirculationFormed By (Process)3 entriesHydrothermal Mineral DepositionFormed By (Process)12 entriesMagmatismFormed By (Process)9 entriesMetamorphismFormed By (Process)17 entriesMetasomatismFormed By (Process)4 entriesSedimentationFormed By (Process)5 entriesSerpentinizationFormed By (Process)2 entriesSubductionFormed By (Process)1 entrySupergene ProcessesFormed By (Process)3 entriesUltra-High-Pressure MetamorphismFormed By (Process)1 entryVolcanismFormed By (Process)4 entriesWeatheringFormed By (Process)2 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.