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

Sodalite (Sodalite, Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Sodalite, Na8(Al6Si6O24)Cl2

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

Quartz (Pebble)

Silicon Dioxide (SiO2)

Chakra Crystal Bracelet (Mixed Mineral Assortment) — gemstone

Chakra Crystal Bracelet

Mixed Mineral Assortment

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite Pebble (Metamorphic Rock (rich in SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Rock (rich in SiO2)

Fuchsite Schist (Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Schist) — metamorphic

Fuchsite Schist

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Schist

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

Titanium Aura Quartz (Aura Quartz)

Titanium-coated Silicon Dioxide (SiO2)

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

Blue Apatite

Ca5(PO4)3(F,Cl,OH)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Vein Rock (Silicon Dioxide (SiO2)) — mineral

Quartz Vein Rock

Silicon Dioxide (SiO2)

Quartz with Calcite (Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)) — mineral

Quartz with Calcite

Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)

Basalt and Quartz pebbles (Basalt (extrusive igneous rock) and Quartz (SiO2)) — igneous and mineral

Basalt and Quartz pebbles

Basalt (extrusive igneous rock) and Quartz (SiO2)

igneous and mineral

Snowflake Obsidian (Volcanic Glass with Spherulitic Cristobalite (SiO2)) — igneous

Snowflake Obsidian

Volcanic Glass with Spherulitic Cristobalite (SiO2)

Polished zebra jasper (Jasper, microcrystalline quartz (SiO₂), with iron-oxide and manganese-rich banding) — metamorphic

Polished zebra jasper

Jasper, microcrystalline quartz (SiO₂), with iron-oxide and manganese-rich banding

Tumbled quartz (likely milky quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Tumbled quartz (likely milky quartz)

Quartz, silicon dioxide (SiO₂)

Blue-green raw mineral specimen, likely apatite (Fluorapatite, Ca₅(PO₄)₃F (probable; visual identification only)) — mineral

Blue-green raw mineral specimen, likely apatite

Fluorapatite, Ca₅(PO₄)₃F (probable; visual identification only)

Rounded basalt pebble (Basalt, aphanitic mafic volcanic rock; primarily plagioclase and pyroxene with possible olivine) — igneous

Rounded basalt pebble

Basalt, aphanitic mafic volcanic rock; primarily plagioclase and pyroxene with possible olivine

Unidentified gray stone (Likely quartz-rich stone; exact identification is not possible from the image) — mineral

Unidentified gray stone

Likely quartz-rich stone; exact identification is not possible from the image

White limestone or chalky carbonate rock (Calcite-rich limestone; possibly chalk (CaCO₃)) — sedimentary

White limestone or chalky carbonate rock

Calcite-rich limestone; possibly chalk (CaCO₃)

Polished ocean jasper / orbicular jasper (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions) — mineral

Polished ocean jasper / orbicular jasper

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions

Red jasper (Jasper (microcrystalline quartz, SiO₂), iron-oxide-rich variety) — mineral

Red jasper

Jasper (microcrystalline quartz, SiO₂), iron-oxide-rich variety

Tumbled basalt (Basalt; fine-grained mafic volcanic rock composed mainly of plagioclase, pyroxene, and commonly olivine) — igneous

Tumbled basalt

Basalt; fine-grained mafic volcanic rock composed mainly of plagioclase, pyroxene, and commonly olivine

Black basalt (Basalt; fine-grained mafic volcanic rock composed mainly of plagioclase, pyroxene, and commonly olivine) — igneous

Black basalt

Basalt; fine-grained mafic volcanic rock composed mainly of plagioclase, pyroxene, and commonly olivine

Milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

Likely quartz-rich mineral fragment (Quartz (SiO₂), possibly iron-stained or included quartz) — mineral

Likely quartz-rich mineral fragment

Quartz (SiO₂), possibly iron-stained or included quartz

Lapis Lazuli ((Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2 (Complex silicate rock)) — metamorphic

Lapis Lazuli

(Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2 (Complex silicate rock)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Tourmaline (Schorl (Complex boron silicate, NaFe3Al6(Si6O18)(BO3)3(OH)4)) — mineral

Tourmaline

Schorl (Complex boron silicate, NaFe3Al6(Si6O18)(BO3)3(OH)4)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Feldspar (Potassium Feldspar / Orthoclase) (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Feldspar (Potassium Feldspar / Orthoclase)

KAlSi3O8 (Potassium Aluminum Silicate)

Olivine in Quartz/Feldspar Matrix (Peridotite or Granitic Pegmatite) ((Mg,Fe)2SiO4 (Olivine) with Quartz / Feldspar) — igneous

Olivine in Quartz/Feldspar Matrix (Peridotite or Granitic Pegmatite)

(Mg,Fe)2SiO4 (Olivine) with Quartz / Feldspar

Potassium Feldspar (Orthoclase / Microcline) (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Potassium Feldspar (Orthoclase / Microcline)

KAlSi3O8 (Potassium Aluminum Silicate)

Quartz and Limestone Grouping (Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)) — mineral

Quartz and Limestone Grouping

Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Schist (likely Mica Schist) (Mica Schist) — metamorphic

Schist (likely Mica Schist)

Mica Schist

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

Clear Quartz Point

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Green Fluorite (Calcium fluoride (CaF2)) — mineral

Green Fluorite

Calcium fluoride (CaF2)

Fuchsite or Green Mica Schist (Muscovite variant (KAl2(AlSi3O10)(OH)2 with Cr)) — metamorphic

Fuchsite or Green Mica Schist

Muscovite variant (KAl2(AlSi3O10)(OH)2 with Cr)

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)