Rock Identifier

Category

Mineral, Organic Gemstone

Browse mineral, organic gemstone specimens identified by the Rock Identifier community.

Carnelian (SiO2 (Microcrystalline Quartz / Chalcedony)) — mineral

Carnelian

SiO2 (Microcrystalline Quartz / Chalcedony)

mineral
Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Quartz (Milky/Clear variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

mineral
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Yellow Quartz (Citrine or Iron-Stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

mineral
Milky Quartz with Inclusions (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Inclusions

Silicon Dioxide (SiO2)

mineral
Turquoise (Turquoise (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Turquoise (CuAl6(PO4)4(OH)8·4H2O)

mineral
Aquamarine (Pendant) and Jasper (Beads) (Beryllium aluminum silicate (Be3Al2Si6O18) with Chalcedony (SiO2)) — mineral

Aquamarine (Pendant) and Jasper (Beads)

Beryllium aluminum silicate (Be3Al2Si6O18) with Chalcedony (SiO2)

mineral
Yellow Quartz (Citrine or Quartzite Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine or Quartzite Pebble)

Silicon Dioxide (SiO2)

mineral
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Peridot (Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)) — mineral

Peridot

Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)

mineral
Moonstone (Feldspar) (Orthoclase feldspar, (K,Na)AlSi3O8) — mineral

Moonstone (Feldspar)

Orthoclase feldspar, (K,Na)AlSi3O8

mineral
Labradorite (Feldspar) (Labradorite, (Ca,Na)(Al,Si)4O8) — mineral

Labradorite (Feldspar)

Labradorite, (Ca,Na)(Al,Si)4O8

mineral
Clear Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Quartz (Smoky/Milky variety with inclusion) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky/Milky variety with inclusion)

Silicon Dioxide (SiO2)

mineral
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Quartz (Milky Variant) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky Variant)

Silicon Dioxide (SiO2)

mineral
Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Peach Moonstone (Orange/Peach Feldspar) (Potassium aluminum silicate (KAlSi3O8)) — mineral

Peach Moonstone (Orange/Peach Feldspar)

Potassium aluminum silicate (KAlSi3O8)

mineral
Labradorite (Labradorite ((Ca, Na)(Al, Si)4O8)) — mineral

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)

mineral
Peridot (Olivine ((Mg, Fe)2SiO4)) — mineral

Peridot

Olivine ((Mg, Fe)2SiO4)

mineral
Quartz (Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

mineral
Sunstone (Plagioclase Feldspar ((Ca,Na)(Al,Si)4O8)) — mineral

Sunstone

Plagioclase Feldspar ((Ca,Na)(Al,Si)4O8)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Amethyst (Quartz) (Amethyst (Silicon Dioxide with Iron impurities), SiO2) — mineral

Amethyst (Quartz)

Amethyst (Silicon Dioxide with Iron impurities), SiO2

mineral
Tourmaline (Multi-colored) (Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4) — mineral

Tourmaline (Multi-colored)

Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4

mineral
Quartz (Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

mineral
Peridot in Basalt (Olivine ((Mg, Fe)2SiO4) in Basalt) — mineral

Peridot in Basalt

Olivine ((Mg, Fe)2SiO4) in Basalt

mineral
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Sunstone (Oligoclase (Plagioclase Feldspar) - (Ca, Na)(Al, Si)4O8) — mineral

Sunstone

Oligoclase (Plagioclase Feldspar) - (Ca, Na)(Al, Si)4O8

mineral
Amethyst (Amethyst (SiO2 - Silicon Dioxide with iron impurities)) — mineral

Amethyst

Amethyst (SiO2 - Silicon Dioxide with iron impurities)

mineral
Amazonite (Microcline (KAlSi3O8) with lead impurities) — mineral

Amazonite

Microcline (KAlSi3O8) with lead impurities

mineral
Amethyst (Silicon Dioxide (SiO2) with Iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with Iron impurities

mineral
Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

mineral
Blue Apatite (Chlorapatite / Fluorapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Chlorapatite / Fluorapatite (Ca5(PO4)3(F,Cl,OH))

mineral
Amethyst (Faceted Gemstone) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Faceted Gemstone)

Silicon Dioxide (SiO2) with iron impurities

mineral
Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Emerald (Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

mineral
Carnelian (Carnelian (SiO2 - Silicon Dioxide)) — mineral

Carnelian

Carnelian (SiO2 - Silicon Dioxide)

mineral
Clear Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Clear Quartz

Quartz (Silicon Dioxide - SiO2)

mineral
Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

mineral
Moonstone (Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8)) — mineral

Moonstone

Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8)

mineral