Rock Identifier

Category

Gemstone

Browse gemstone specimens identified by the Rock Identifier community.

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

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

Yellow Quartz (Citrine or Quartzite Pebble)

Silicon Dioxide (SiO2)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

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

Quartz (Smoky/Milky variety with inclusion)

Silicon Dioxide (SiO2)

mineral
Amazonite (Amazonite (KAlSi3O8)) — mineral

Amazonite

Amazonite (KAlSi3O8)

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
Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

mineral
Banded Agate (Silicon Dioxide (SiO2)) — mineral

Banded Agate

Silicon Dioxide (SiO2)

mineral
Yellow Quartzite Pebble (Quartzite (SiO2 with Iron Oxide staining)) — metamorphic

Yellow Quartzite Pebble

Quartzite (SiO2 with Iron Oxide staining)

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

Labradorite (Feldspar)

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

mineral
Citrine (Heat-treated or Natural Quartz) (Silicon Dioxide (SiO2)) — mineral

Citrine (Heat-treated or Natural Quartz)

Silicon Dioxide (SiO2)

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

Citrine

Quartz (Silicon Dioxide - SiO2)

mineral
Green Quartzite (Quartzite (SiO2 with chromium-rich muscovite/fuchsite inclusions)) — metamorphic

Green Quartzite

Quartzite (SiO2 with chromium-rich muscovite/fuchsite inclusions)

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

Emerald

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

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
Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)

sedimentary
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
Amazonite (K(AlSi3O8) - Microcline) — mineral

Amazonite

K(AlSi3O8) - Microcline

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

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

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
Blue Lace Agate (Silicon Dioxide (SiO2) - Chalcedony / Quartz) — sedimentary

Blue Lace Agate

Silicon Dioxide (SiO2) - Chalcedony / Quartz

sedimentary
Green Quartzite (Quartzite (SiO2)) — metamorphic

Green Quartzite

Quartzite (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

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

Carnelian

Carnelian (SiO2 - Silicon Dioxide)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Amazonite (K(AlSi3O8) - Microcline variant) — mineral

Amazonite

K(AlSi3O8) - Microcline variant

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

Amethyst

Silicon Dioxide (SiO2) with Iron impurities

mineral
Carnelian (Orange Chalcedony) (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian (Orange Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

mineral
Rhodonite (Manganese silicate (MnSiO3)) — mineral

Rhodonite

Manganese silicate (MnSiO3)

mineral
Quartz (specifically Milky or Clear Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Milky or Clear Quartz)

Silicon Dioxide (SiO2)

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

Labradorite

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

mineral
Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

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

Milky Quartz

Silicon dioxide (SiO2)

mineral
Amazonite (Potassium aluminum silicate (Microcline); KAlSi3O8) — mineral

Amazonite

Potassium aluminum silicate (Microcline); KAlSi3O8

mineral
Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

mineral
Amazonite (or Amazon Stone) (Potassium Feldspar (Microcline), K(AlSi3O8)) — mineral

Amazonite (or Amazon Stone)

Potassium Feldspar (Microcline), K(AlSi3O8)

mineral