Rock Identifier

Category

Mineral (Specifically A Mineraloid)

Browse mineral (specifically a mineraloid) specimens identified by the Rock Identifier community.

Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Amber (Succinite (fossilized resin)) — mineral

Amber

Succinite (fossilized resin)

Aquamarine (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18)

Onyx (Black Onyx) (Onyx (Silicon Dioxide, SiO2)) — mineral

Onyx (Black Onyx)

Onyx (Silicon Dioxide, SiO2)

Gold Flake (Placer Gold) (Native Gold (Au)) — mineral

Gold Flake (Placer Gold)

Native Gold (Au)

Turquoise (Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O

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

Amethyst Geode

Silicon Dioxide with impurities (SiO2)

Orthoclase Feldspar (Orthoclase (KAlSi3O8)) — mineral

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Aura Quartz (Titanium Quartz) (Titanium-coated Silicon Dioxide (SiO2 + Ti)) — mineral

Aura Quartz (Titanium Quartz)

Titanium-coated Silicon Dioxide (SiO2 + Ti)

Ruby, Emerald, and Sapphire (Corundum and Beryl) (Corundum (Al2O3) and Beryl (Be3Al2Si6O18)) — mineral

Ruby, Emerald, and Sapphire (Corundum and Beryl)

Corundum (Al2O3) and Beryl (Be3Al2Si6O18)

Dyed Agate (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Agate

Silicon Dioxide (SiO2) with artificial pigment

Flower Agate (Silicon Dioxide (SiO2) - Variety of Chalcedony) — mineral

Flower Agate

Silicon Dioxide (SiO2) - Variety of Chalcedony

Lake Superior Agate (Banded Chalcedony (Silicon Dioxide / SiO2)) — mineral

Lake Superior Agate

Banded Chalcedony (Silicon Dioxide / SiO2)

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

Yellow Quartz (Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Carnelian Agate (Silicon Dioxide (SiO2)) — mineral

Carnelian Agate

Silicon Dioxide (SiO2)

Amazonite (Potassium Feldspar (Microcline) - K(AlSi3O8)) — mineral

Amazonite

Potassium Feldspar (Microcline) - K(AlSi3O8)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Tourmalinated Quartz (Quartz (SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) inclusions) — mineral

Tourmalinated Quartz

Quartz (SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) inclusions

Pearl (Calcium carbonate (CaCO3) as Aragonite or Calcite) — mineral

Pearl

Calcium carbonate (CaCO3) as Aragonite or Calcite

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Gold in Quartz Matrix (Native Gold (Au) with Quartz (SiO2) and Slate/Shale) — mineral

Gold in Quartz Matrix

Native Gold (Au) with Quartz (SiO2) and Slate/Shale

Turquoise (Rough) (Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise (Rough)

Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

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

Carnelian Agate

Carnelian (Silicon Dioxide - SiO2)

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

Labradorite (Gray Tumbled)

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

Blue Agate (Dyed) (Silicon Dioxide (SiO2) - Variety of Chalcedony) — mineral

Blue Agate (Dyed)

Silicon Dioxide (SiO2) - Variety of Chalcedony

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

Emerald

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

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

Carnelian Agate

Carnelian (Silicon Dioxide - SiO2)

Turquoise and Hematite (Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)) — mineral

Turquoise and Hematite

Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)

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

Peridot (Olivine)

Magnesium Iron Silicate (Mg, Fe)2SiO4

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

Native Copper (in coinage alloy)

Copper (Cu)

Yellow Quartz (Chalcedony/Citrine Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Chalcedony/Citrine Pebble)

Silicon Dioxide (SiO2)

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

Peridot

Olivine (Mg, Fe)₂SiO₄

Carnelian (Carnelian (a variety of Chalcedony), SiO2 (Silicon Dioxide)) — mineral

Carnelian

Carnelian (a variety of Chalcedony), SiO2 (Silicon Dioxide)

Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate) (Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement) — Mineral

Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)

Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement

Pink Coral (Corallium rubrum (Calcium Carbonate, CaCO3)) — mineral

Pink Coral

Corallium rubrum (Calcium Carbonate, CaCO3)

Rhodonite ((Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

(Mn,Fe,Mg,Ca)SiO3

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

Labradorite

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