Rough Green Beryl (Emerald variety)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Category
Organic Gem Material (Botanical)
Browse organic gem material (botanical) specimens identified by the Rock Identifier community.
Chrysocolla on Quartz with Iron Oxides
Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
mineral
Lake Superior Agate
Banded Chalcedony (SiO2)
mineral
Kimberlite
Kimberlite (Porphyritic Peridotite)
Igneous
Almandine Garnet
Iron aluminum silicate (Fe3Al2(SiO4)3)
Mineral
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)
mineral
Zinc Ore (Sphalerite in Matrix)
Sphalerite (Zn,Fe)S within a carbonate or silicate host rock
mineral
Garnet
Garnet Group (formula varies, e.g., Almasndine: Fe3Al2(SiO4)3)
mineral
Ferruginous Quartz
Iron-stained Quartz (SiO2 with Fe2O3 impurities)
mineral
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Iron inclusions
sedimentary
Green Jasper with Agate Banding
Silicon Dioxide (SiO2) with impurities of ferrous silicate or chlorite
sedimentary (chemical/biological origin)
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Peridot
Olivine (Mg, Fe)2SiO4
mineral
Amethyst
Amethyst (SiO2 with iron impurities)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst (Druzy Cluster)
Amethyst (Silicon Dioxide with Iron impurities), SiO2
mineral
Smoky Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Peridot
Olivine (Mg, Fe)2SiO4
mineral
Rhodonite in Quartz Matrix
Rhodonite (Manganese Iron Magnesium Calcium Silicate - Mn,Fe,Mg,Ca)SiO3
mineral
Amethyst
Silicon dioxide (SiO2)
mineral
Amethyst (as a jewelry accent)
Amethyst (Silicon Dioxide SiO2 with Iron impurities)
mineral
Yellow Jade (often Serpentine or Dolomite)
Primarily Serpentine (Mg3Si2O5(OH)4) or Dolomite (CaMg(CO3)2), though the term 'yellow jade' is also sometimes applied to varieties of true nephrite or jadeite.
Mineral, often a rock given its aggregate nature
Amber
Succinite
Organic mineraloid
Dyed Howlite (Dyed Red)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst (Chevron or Banded Amethyst)
Silicon Dioxide (SiO2) with trace Iron (Fe)
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
mineral
Smoky Quartz in Matrix (Pegmatite)
Silicon Dioxide (SiO2) with Potassium Feldspar and Biotite mica
igneous
Moonstone (in a halo ring setting)
Orthoclase Feldspar (containing alternating layers of Albite), (KAlSi3O8)
mineral
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
mineral
Moonstone
Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8
mineral
Basalt with Peridotite (Olivine) Xenolith
Olivine-rich Peridotite (Dunite) xenolith in Vesicular Basalt; chemical formula (Mg,Fe)2SiO4
igneous
Ferruginous Quartz (Stained Quartz)
Silicon Dioxide (SiO2) with secondary Iron Oxide inclusions (Limonite/Hematite)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral