Rock Identifier

Category

Mineral (Occurring As A Rolled Clast)

Browse mineral (occurring as a rolled clast) specimens identified by the Rock Identifier community.

Sandstone (Quartzose) (Arenite (predominantly SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (predominantly SiO2)

Sandstone (Arenite (Siliclastic sedimentary rock, primarily SiO2)) — sedimentary

Sandstone

Arenite (Siliclastic sedimentary rock, primarily SiO2)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Chrysocolla (Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla

Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O

Yellow Topaz (Imperial or Precious Topaz) (Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)) — mineral

Yellow Topaz (Imperial or Precious Topaz)

Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)

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)

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

Turquoise

CuAl6(PO4)4(OH)8·4H2O

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

Turquoise

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

Moonstone (Orthoclase (Potassium aluminum silicate - KAlSi3O8)) — mineral

Moonstone

Orthoclase (Potassium aluminum silicate - KAlSi3O8)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Prehnite (Prehnite - Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2

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

Clear Quartz Sphere

Quartz (Silicon Dioxide, SiO2)

Diamond (Diamond (Pure Carbon, C)) — mineral

Diamond

Diamond (Pure Carbon, C)

Rhodonite (Rhodonite (Manganese Iron Magnesium Calcium Silicate)) — mineral

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate)

Chrysotile Asbestos (Chrysotile [Mg3Si2O5(OH)4]) — mineral

Chrysotile Asbestos

Chrysotile [Mg3Si2O5(OH)4]

Mystic Topaz (Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating) — mineral

Mystic Topaz

Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Orange Quartz (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Orange Quartz

Silicon Dioxide (SiO2) with iron oxide inclusions

Moonstone (Feldspar variety) (Orthoclase Feldspar (KAlSi3O8)) — mineral

Moonstone (Feldspar variety)

Orthoclase Feldspar (KAlSi3O8)

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

Yellow Quartz (Citrine or Quartzite Pebble)

Silicon Dioxide (SiO2)

Amazonite (Amazonite (KAlSi3O8, a variety of Microcline)) — mineral

Amazonite

Amazonite (KAlSi3O8, a variety of Microcline)

Citrine (Silicon Dioxide (SiO₂)) — mineral

Citrine

Silicon Dioxide (SiO₂)

Gold Nugget (Native Gold (Au)) — Mineral

Gold Nugget

Native Gold (Au)

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Brecciated stone pebble (Breccia) — sedimentary

Brecciated stone pebble

Breccia

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Glauconite (Green Sandstone) (Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2) — sedimentary

Glauconite (Green Sandstone)

Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2

Ferruginous Breccia (Breccia with Iron-rich (Hematite/Goethite) Matrix) — sedimentary

Ferruginous Breccia

Breccia with Iron-rich (Hematite/Goethite) Matrix

Red Sandstone (Arkose) (Clastic Sedimentary Rock (Lithic Arkose)) — sedimentary

Red Sandstone (Arkose)

Clastic Sedimentary Rock (Lithic Arkose)

Blue Agate (Dyed Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Blue Agate (Dyed Chalcedony)

Silicon Dioxide (SiO2)

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

Yellow Quartz (Citrine/Yellow Chalcedony)

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Quartz (Small fragments) (Silicon Dioxide (SiO2)) — mineral

Quartz (Small fragments)

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Conglomerate with Quartz Inclusions (Conglomerate (clastic sedimentary rock) with internal Quartz (SiO2)) — sedimentary

Conglomerate with Quartz Inclusions

Conglomerate (clastic sedimentary rock) with internal Quartz (SiO2)

$Diamond (or high-refractive faceted gemstone) (Carbon; C) — mineral$

Diamond (or high-refractive faceted gemstone)

Carbon; C

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Banded Sandstone (Hag Stone) (Arenite Sandstone (SiO2 with impurities)) — sedimentary

Banded Sandstone (Hag Stone)

Arenite Sandstone (SiO2 with impurities)

Prehnite (Ca2Al(AlSi3O10)(OH)2 (Calcium Aluminum Silicate hydroxide)) — mineral

Prehnite

Ca2Al(AlSi3O10)(OH)2 (Calcium Aluminum Silicate hydroxide)

Conglomerate (Conglomerative Rudite (SiO2/CaCO3 matrix)) — sedimentary

Conglomerate

Conglomerative Rudite (SiO2/CaCO3 matrix)

Chalcedony (Agate/Chert variety) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate/Chert variety)

Silicon Dioxide (SiO2)

Cubic Zirconia (Zirconium Dioxide (ZrO2)) — mineral

Cubic Zirconia

Zirconium Dioxide (ZrO2)