Beryl (Emerald or Aquamarine in Matrix)
Beryllium Aluminum Silicate (Be3Al2Si6O18)
Category
Browse organic gem material (botanical) specimens identified by the Rock Identifier community.
Beryl (Emerald or Aquamarine in Matrix)
Beryllium Aluminum Silicate (Be3Al2Si6O18)
Ruby (Rough/Raw)
Corundum (Al2O3:Cr)
Epidote
Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Orthoclase (Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
Ruby (Corundum)
Corundum (Aluminum Oxide) with chromium trace elements, Al2O3
Granitic Pegmatite
Granite Pegmatite (principally KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)
Amethyst on Agate
Crystalline Quartz (SiO2) with trace Iron (Fe3+)
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Red Garnet
Almandine Garnet (Fe3Al2(SiO4)3)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Sugilite
Sugilite [KNa2(Fe,Mn,Al)2Li3Si12O30]
Black Opal
Hydrated Amorphous Silica (SiO2 "n" H2O)
Chrysocolla (in Host Rock)
Hydrated copper silicate - Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
Corundum (Ruby variety)
Aluminium oxide (Al2O3)
Basalt with Vesicular Texture
Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Yellow Quartz / Quartz Pebble
Silicon Dioxide (SiO2)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Pink Tourmaline (Rubellite)
Elbaite - Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3OH
Garnet (likely Almandine)
Almandine Garnet, Fe3Al2(SiO4)3
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Peridotite (Olivine)
Peridotite (comprising (Mg,Fe)2SiO4)
Almandine Garnet
Almandite (Fe3Al2(SiO4)3)
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
Blue Kyanite
Kyanite (Al2SiO5)
Chrysocolla in Matrix
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
Chrysocolla in Matrix
Hydrated copper phyllosilicate mineral (Cu,Al)2H2Si2O5(OH)4·nH2O
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Blue Chalcedony
Silicon Dioxide (SiO2)
Amethyst Quartz
Silicon Dioxide (SiO2) with iron impurities
Granite Pegmatite
Coarse-grained Granite (SiO2 - Aluminum and Alkalies)
Chrysoprase
Chalcedony (Silicon Dioxide, SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Amethyst
Silicon dioxide with iron impurities (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2)
Amber
Succinite (organic hydrocarbon)
Chert (Green and Black Jasper variant)
Cryptocrystalline Quartz (SiO2)
Sandstone
Arenite (primary component SiO2)
Sandstone
Arenite (SiO2 based)