Rock Identifier

Category

Mineral (Specifically A Mineraloid)

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

Learn about Mineral (Specifically A Mineraloid) in the encyclopedia

Shungite

Anatase

Sperrylite

Olenite

Buergerite

Hutcheonite

Celsian

Coal

Glauconite

Rock Salt

Baddeleyite

Talc

Rutilated Quartz Bracelet (Quartz (Silicon Dioxide, SiO2) with inclusions of Rutile (Titanium Dioxide, TiO2)) — gemstone

Rutilated Quartz Bracelet

Quartz (Silicon Dioxide, SiO2) with inclusions of Rutile (Titanium Dioxide, TiO2)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Mystic Topaz (Treated Quartz or Topaz) (Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating) — gemstone

Mystic Topaz (Treated Quartz or Topaz)

Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating

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

Amethyst

Quartz (Silicon Dioxide, SiO2)

Amethyst (Quartz (Silicon Dioxide with Iron impurities), SiO2) — gemstone

Amethyst

Quartz (Silicon Dioxide with Iron impurities), SiO2

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

Amethyst

Quartz (Silicon Dioxide, SiO2)

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

Amethyst

Quartz (Silicon Dioxide, SiO2)

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

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

Hemimorphite or Red Quartz (SiO2 (Quartz) / Zn4Si2O7(OH)2·H2O (Hemimorphite)) — mineral

Hemimorphite or Red Quartz

SiO2 (Quartz) / Zn4Si2O7(OH)2·H2O (Hemimorphite)

Amber (Succinate (Fossilized Resin)) — mineral

Amber

Succinate (Fossilized Resin)

Amber (Succinite (Fossilized Resin)) — mineral

Amber

Succinite (Fossilized Resin)

Amazonite (Microcline Feldspar (KAlSi3O8)) — mineral

Amazonite

Microcline Feldspar (KAlSi3O8)

Amazonite (KAlSi3O8 (Potassium aluminum silicate - blue-green variety of Microcline)) — mineral

Amazonite

KAlSi3O8 (Potassium aluminum silicate - blue-green variety of Microcline)

Amazonite (Potassium Aluminum Silicate (KAlSi3O8)) — mineral

Amazonite

Potassium Aluminum Silicate (KAlSi3O8)

Heliotrope (Bloodstone) (Chalcedony quartz variety (SiO2) with hematite or jasper inclusions) — mineral

Heliotrope (Bloodstone)

Chalcedony quartz variety (SiO2) with hematite or jasper inclusions

Aquamarine (Beryl (Be3Al2(SiO3)6)) — gemstone

Aquamarine

Beryl (Be3Al2(SiO3)6)

Fossil Snail (Gastropoda (fossilized)) — fossil

Fossil Snail

Gastropoda (fossilized)

Basalt (Basalt) — igneous

Basalt

Basalt

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

Quartz (Yellow / Citrine Pebble)

Silicon Dioxide (SiO2)

Chalcopyrite (Chalcopyrite (CuFeS2)) — mineral

Chalcopyrite

Chalcopyrite (CuFeS2)

Tumbled Agate (Silicon Dioxide (SiO2)) — gemstone

Tumbled Agate

Silicon Dioxide (SiO2)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Jasper (Microcrystalline Quartz (SiO2)) — gemstone

Jasper

Microcrystalline Quartz (SiO2)

Botryoidal hematite (speculative) (Hematite, iron(III) oxide (Fe₂O₃), possibly mixed with goethite or magnetite) — mineral

Botryoidal hematite (speculative)

Hematite, iron(III) oxide (Fe₂O₃), possibly mixed with goethite or magnetite

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper and Quartz Pebble (Silicon dioxide (SiO2) microcrystalline quartz) — sedimentary

Jasper and Quartz Pebble

Silicon dioxide (SiO2) microcrystalline quartz

Botryoidal Chalcedony / Quartz (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony / Quartz

Silicon Dioxide (SiO2)

Leopardite (Porphyritic Quartz Monzonite or Rhyolite) — igneous

Leopardite

Porphyritic Quartz Monzonite or Rhyolite

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

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

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Jasper and Quartz Breccia (Silicified Breccia / Microcrystalline Quartz with Iron Oxide) — sedimentary

Jasper and Quartz Breccia

Silicified Breccia / Microcrystalline Quartz with Iron Oxide

Green Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper

Microcrystalline Quartz (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

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

Rose Quartz and Pegmatite

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

Quartz Vug / Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz Vug / Druzy Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Epidote with Quartz Vein (Epidote-bearing metamorphic rock with quartz (Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Epidote with Quartz Vein

Epidote-bearing metamorphic rock with quartz (Ca2(Al,Fe)3(SiO4)3(OH))

Quartz with Mica/Schist inclusion (Silicon Dioxide (SiO2) with Phyllosilicates) — mineral

Quartz with Mica/Schist inclusion

Silicon Dioxide (SiO2) with Phyllosilicates

Titanium Quartz (Aura Quartz) (Silicon Dioxide (SiO2) treated with Titanium) — mineral

Titanium Quartz (Aura Quartz)

Silicon Dioxide (SiO2) treated with Titanium

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)