Beryl (likely Emerald or Aquamarine in matrix)
Beryllium aluminum silicate (Be3Al2Si6O18)
Category
Browse granite specimens identified by the Rock Identifier community.
Beryl (likely Emerald or Aquamarine in matrix)
Beryllium aluminum silicate (Be3Al2Si6O18)
Amazonite
Amazonite (KAlSi3O8)
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
Schorl (Black Tourmaline) in Matrix
Sodium Iron Aluminum Borosilicate Hydroxide (NaFe2+3Al6Si6O18(BO3)3(OH)3OH)
Rose Quartz
Rose Quartz (SiO2 with trace Ti, Fe, or Mn)
Milky Quartz
Silicon Dioxide (SiO2)
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Fluorite
Calcium fluoride (CaF2)
Gneiss
Gneiss
Pink and Green Tourmaline (Tumbled)
Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
Amazonite
Microcline (KAlSi3O8) with lead impurities
Amazonite with Smoky Quartz and Feldspar
Microcline (KAlSi3O8) with Quartz (SiO2)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Beryl (var. Heliodor or Aquamarine)
Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Lepidolite in Quartz (Obelisk)
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lepidolite)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Lapis Lazuli
Lapis Lazuli (Rock composed primarily of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Arfvedsonite in Quartz (also known as Eudialyte/Garnet Syenite variety)
Arfvedsonite [Na3(Fe2+)4Fe3+Si8O22(OH)2] within a silicate matrix
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing mica)
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide)
Cat's Eye Chrysoberyl
Chrysoberyl (BeAl2O4)
Aquamarine (Beryl)
Beryllium aluminum silicate (Be3Al2Si6O18)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Amazonite
K(AlSi3O8)
Iolite (Cordierite)
Cordierite (Magnesium iron aluminum cyclosilicate), Mg2Al4Si5O18
Dumortierite Quartz
Al7BO3(SiO4)3O3 (inclusion in SiO2)
Amazonite
Microcline (KAlSi3O8) with trace lead (Pb) impurities
Granite Gneiss with Garnet
Garnetiferous Gneiss
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Crystal Fragment)
Quartz / Silicon Dioxide (SiO2)
Quartz with Mica (Pegmatite)
Quartz (SiO2) and Muscovite (KAl2(AlSi3O10)(OH)2)
Gabbro
Gabbro
Diorite (River Pebble)
Phaneritic Intermediate Plutonic Rock (Diorite)
Diorite
Diorite (Intermediate plutonic rock)
Gabbro (likely with Pyrite/Sulfide mineralization)
Mafic Intrusive Igneous Rock
Diabase (Greenstone)
Diabase (Dolerite)
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)