Rock Identifier

Category

Crystal

Browse crystal specimens identified by the Rock Identifier community.

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Carnelian Agate/Jasper blend (Silicon Dioxide (SiO2) - variety of Chalcedony) — mineral

Carnelian Agate/Jasper blend

Silicon Dioxide (SiO2) - variety of Chalcedony

Magnetite (Lodestone) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone)

Magnetite (Fe3O4)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

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

Quartz (Milky/Clear)

Silicon Dioxide (SiO2)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Blue Apatite (Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

Garnet (Almandine variety) (Almandine Garnet (Fe3Al2(SiO4)3)) — mineral

Garnet (Almandine variety)

Almandine Garnet (Fe3Al2(SiO4)3)

Orange Calcite (Calcite (Calcium Carbonate - CaCO3)) — mineral

Orange Calcite

Calcite (Calcium Carbonate - CaCO3)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

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

Quartz (Milky/Rose Quartz variety)

Silicon Dioxide (SiO2)

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

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

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

Citrine (Iron-stained Quartz)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon dioxide (SiO2)) — mineral

Milky Quartz

Silicon dioxide (SiO2)

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

Rough Amethyst

Silicon Dioxide (SiO2) with Iron impurities

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

Amethyst

Silicon Dioxide with iron impurities (SiO2)

Pyrite (Iron Pyrite (FeS2)) — mineral

Pyrite

Iron Pyrite (FeS2)

Native Copper (in coinage alloy) (Copper (Cu)) — mineral

Native Copper (in coinage alloy)

Copper (Cu)

Smoky Quartz (SiO2 (Silicon Dioxide)) — mineral

Smoky Quartz

SiO2 (Silicon Dioxide)

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

Smoky Quartz (Vein Quartz)

Quartz (Silicon Dioxide, SiO2)

Quartz / Quartzite Fragment (Silicon Dioxide (SiO2)) — mineral / metamorphic

Quartz / Quartzite Fragment

Silicon Dioxide (SiO2)

mineral / metamorphic

Quartz Mineral (Silicon Dioxide (SiO2)) — mineral

Quartz Mineral

Silicon Dioxide (SiO2)

Massive Milky Quartz (with Iron Inclusions) (Quartz (Silicon Dioxide, SiO2)) — mineral

Massive Milky Quartz (with Iron Inclusions)

Quartz (Silicon Dioxide, SiO2)

Arsenopyrite (Arsenopyrite (FeAsS)) — mineral

Arsenopyrite

Arsenopyrite (FeAsS)

Rose Quartz (Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

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

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

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

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Obsidian (Gold Sheen) (Obsidian (SiO2 + impurities)) — igneous

Obsidian (Gold Sheen)

Obsidian (SiO2 + impurities)

Rose Quartz (Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese

Blue Chalcedony (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

Labradorite

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

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz with inclusions

Quartz (Silicon Dioxide, SiO2)

Orange Calcite and White Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite and White Calcite

Calcium Carbonate (CaCO3)

Quartz (River Pebble) (Silicon Dioxide (SiO₂)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO₂)

Graphite Schist (C (Carbonaceous Schist)) — metamorphic

Graphite Schist

C (Carbonaceous Schist)

Blue Goldstone (Auraventurine (Synthetic glass with cobalt and copper inclusions)) — Synthetic (Man-made Glass)

Blue Goldstone

Auraventurine (Synthetic glass with cobalt and copper inclusions)

Synthetic (Man-made Glass)

Sodalite (Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)) — mineral

Sodalite

Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — Mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

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

Clear Quartz Cluster

Silicon Dioxide (SiO2)