Home›Rocks and Minerals›Minerals›Where Found›BrazilBrowse ByBrazilBrazilComments (0)Reader Challenges (0)BrazilFilter Results4 entriesStrunz ClassAllOxides and Hydroxides (1)Silicates (2)Crystal SystemAllHexagonal Crystal System (1)Orthorhombic Crystal System (2)HardnessAll5.75 to 6.25 Mohs (1)7.5 to 8.5 Mohs (2)LustreAllPearly (1)Resinous (1)Vitreous (3)Waxy or Greasy (2)ColourAllBlue or Purple (2)Brown (3)Colourless or White (2)Green (3)Grey or Black (3)Orange or Yellow (3)Red or Pink (3)RarityAllRare (1)Uncommon (1)UseAllGemstone (3)Formed By (Process)AllBiomineralization (1)Fractional Crystallization (3)Hydrothermal Mineral Deposition (3)Metasomatism (2)Volcanism (1)Show ResultsBrowseCompareSelect all 4BerylBrazilChrysoberylBrazilOpalBrazilTopazBrazilComments (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.