Rock Identifier

Category

Mineral, Specifically A Detrital Grain

Browse mineral, specifically a detrital grain specimens identified by the Rock Identifier community.

Learn about Mineral, Specifically A Detrital Grain in the encyclopedia

Glauconite

Hutcheonite

Halite

Sperrylite

Bostonite

Baddeleyite

Felsite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Moonstone (Orthoclase Feldspar) (Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8)) — mineral

Moonstone (Orthoclase Feldspar)

Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Druzy or Crystalline) (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy or Crystalline)

Silicon Dioxide (SiO2)

Diabase (Diabase (also known as Dolerite)) — igneous

Diabase

Diabase (also known as Dolerite)

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

Smoky Quartz and Citrine

Silicon Dioxide (SiO2)

Green Aventurine (Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions) — mineral

Green Aventurine

Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions

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

Citrine Quartz

Citrine (Silicon Dioxide, SiO2)

Larimar (Pectolite (NaCa2Si3O8(OH))) — mineral

Larimar

Pectolite (NaCa2Si3O8(OH))

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

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

Citrine

Silicon Dioxide (SiO2) with iron impurities

Ocean Jasper (Silicon Dioxide (SiO2) - Orbicular Jasper / Chalcedony) — mineral

Ocean Jasper

Silicon Dioxide (SiO2) - Orbicular Jasper / Chalcedony

Rose Quartz (SiO2 (Silicon Dioxide)) — mineral

Rose Quartz

SiO2 (Silicon Dioxide)

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

Pearl (Calcium Carbonate (CaCO3)) — mineral

Pearl

Calcium Carbonate (CaCO3)

Moss Agate (Silicon Dioxide (SiO2) with inclusions) — mineral

Moss Agate

Silicon Dioxide (SiO2) with inclusions

Reddish-brown sandstone pebble (Quartz-rich sandstone, commonly ferruginous sandstone (SiO₂-dominated)) — sedimentary

Reddish-brown sandstone pebble

Quartz-rich sandstone, commonly ferruginous sandstone (SiO₂-dominated)

Unidentified pale mineral or rock surface (Indeterminate from image; possibly a small quartz or feldspar grain) — mineral

Unidentified pale mineral or rock surface

Indeterminate from image; possibly a small quartz or feldspar grain

Small tumbled pebble (likely quartz or feldspar) (Indeterminate; probable quartz (SiO₂) or feldspar) — mineral

Small tumbled pebble (likely quartz or feldspar)

Indeterminate; probable quartz (SiO₂) or feldspar

Basalt (Basalt (composition: Plagioclase, Pyroxene, and Olivine)) — igneous

Basalt

Basalt (composition: Plagioclase, Pyroxene, and Olivine)

Dalmatian Stone (Dalmatian Jasper (Aplitic Perthite)) — igneous

Dalmatian Stone

Dalmatian Jasper (Aplitic Perthite)

Green Aventurine (Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)) — metamorphic

Green Aventurine

Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Unidentified metallic mineral fragment (Indeterminate; possibly galena, hematite, or a metallic meteorite fragment) — mineral

Unidentified metallic mineral fragment

Indeterminate; possibly galena, hematite, or a metallic meteorite fragment

Pink Granite (Intrusive Igneous Rock (high K-feldspar content)) — igneous

Pink Granite

Intrusive Igneous Rock (high K-feldspar content)

Granite (Pink/Red) (Phaneritic Igneous Rock (Rich in K-Feldspar)) — igneous

Granite (Pink/Red)

Phaneritic Igneous Rock (Rich in K-Feldspar)

Red Sandstone (Arenite (specifically Quartz Arenite with Iron Oxide)) — sedimentary

Red Sandstone

Arenite (specifically Quartz Arenite with Iron Oxide)

Sandstone (Quartzose Sandstone) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Quartzose Sandstone)

Clastic sedimentary rock (primarily SiO2)

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Pink Granite (Glacial Cobble) (Granite (rich in Potassium Feldspar / Orthoclase)) — igneous

Pink Granite (Glacial Cobble)

Granite (rich in Potassium Feldspar / Orthoclase)

Petrified Wood (Silicified Wood (primarily quartz/chalcedony replacing organic wood structure, SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily quartz/chalcedony replacing organic wood structure, SiO2)

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

Sunstone

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

Orca Agate (Chalcedony (Microcrystalline Quartz, SiO2)) — mineral

Orca Agate

Chalcedony (Microcrystalline Quartz, SiO2)

Quartz with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Quartz with Iron Staining

Silicon Dioxide (SiO2)

Peach Moonstone (Potassium Aluminum Silicate (KAlSi3O8)) — mineral

Peach Moonstone

Potassium Aluminum Silicate (KAlSi3O8)

Picture Jasper (Silicon Dioxide (SiO2) - Opaque Impure Chalcedony) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) - Opaque Impure Chalcedony

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Pegmatite (Feldspar and Quartz) (Pegmatite (KAlSi3O8 / SiO2)) — igneous

Pegmatite (Feldspar and Quartz)

Pegmatite (KAlSi3O8 / SiO2)

Rose Quartz (Quartz (SiO₂), specifically a variety of Quartz) — Mineral

Rose Quartz

Quartz (SiO₂), specifically a variety of Quartz

Granite (Pink/Red Granite) (Phaneritic Felsic Igneous Rock) — igneous

Granite (Pink/Red Granite)

Phaneritic Felsic Igneous Rock

Agate Nodules (Cryptocrystalline Quartz (SiO2)) — mineral

Agate Nodules

Cryptocrystalline Quartz (SiO2)