Rock Identifier

Category

Mineral, Part Of A Rock

Browse mineral, part of a rock specimens identified by the Rock Identifier community.

Learn about Mineral, Part Of A Rock in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Halite

Dolomite

Gypsum

Coal

Claystone

Particolored Tourmaline

Serpentinite

Carbonatite

Skarn

Schist

Granite Quartz Blend (Pegmatite or Quartz-rich Granite) (Igneous rock composed primarily of SiO2 (Quartz) with KAlSi3O8 (Feldspar) and (K,Fe,Mg)3(Al,Si4O10)(OH)2 (Biotite)) — igneous

Granite Quartz Blend (Pegmatite or Quartz-rich Granite)

Igneous rock composed primarily of SiO2 (Quartz) with KAlSi3O8 (Feldspar) and (K,Fe,Mg)3(Al,Si4O10)(OH)2 (Biotite)

Dolerite (Diabase) (Dolerite / Diabase) — igneous

Dolerite (Diabase)

Dolerite / Diabase

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Quartz with Chalcopyrite (or Pyrite) (Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)) — mineral

Quartz with Chalcopyrite (or Pyrite)

Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)

Crinoid Stem Fossil (Crinoid columnal (Class Crinoidea)) — sedimentary

Crinoid Stem Fossil

Crinoid columnal (Class Crinoidea)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

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

Emerald

Beryl (Be3Al2(SiO3)6)

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

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Tektite (Indochinite) (Tektite (Terrestrial Impact Glass)) — meteorite

Tektite (Indochinite)

Tektite (Terrestrial Impact Glass)

Engineered Quartz (Quartzite look-alike) (Silicon Dioxide (SiO2) composite) — mineral-based composite

Engineered Quartz (Quartzite look-alike)

Silicon Dioxide (SiO2) composite

mineral-based composite

Rugose Coral (Horn Coral) Fossil (Order Rugosa (likely Grewingkia or Zaphrentis genus)) — fossil

Rugose Coral (Horn Coral) Fossil

Order Rugosa (likely Grewingkia or Zaphrentis genus)

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

Chalcedony (Agate)

Silicon Dioxide (SiO2)

Basalt River Stone (Basalt) — igneous

Basalt River Stone

Basalt

Echinoid Fossil / Fossilized Sea Urchin (Echinoidea) — fossil

Echinoid Fossil / Fossilized Sea Urchin

Echinoidea

Basalt (Basalt) — igneous

Basalt

Basalt

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Likely quartz-bearing mineral aggregate (Quartz (SiO₂), possibly mixed with mica or feldspar) — mineral

Likely quartz-bearing mineral aggregate

Quartz (SiO₂), possibly mixed with mica or feldspar

Basalt (River Stone) (Basalt (Extrusive Igneous Rock)) — igneous

Basalt (River Stone)

Basalt (Extrusive Igneous Rock)

Granite (Granitoid (comprised of Quartz, Feldspar, and Mica)) — igneous

Granite

Granitoid (comprised of Quartz, Feldspar, and Mica)

Lapis Lazuli (Lapis Lazuli (Metamorphic rock containing lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, calcite, and pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Metamorphic rock containing lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, calcite, and pyrite)

Epidote (Epidote ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))) — mineral

Epidote

Epidote ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))

Basalt Pebble (Mafic Igneous Rock (Basalt)) — igneous

Basalt Pebble

Mafic Igneous Rock (Basalt)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

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

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Quartz (Clear/White) (Silicon Dioxide (SiO2)) — mineral

Quartz (Clear/White)

Silicon Dioxide (SiO2)

Orange Quartz (likely Carnelian or stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Orange Quartz (likely Carnelian or stained Quartz)

Silicon Dioxide (SiO2)

Granite (Granite (Mainly Quartz SiO2, Alkali Feldspar (K,Na)AlSi3O8, and Plagioclase Feldspar)) — igneous

Granite

Granite (Mainly Quartz SiO2, Alkali Feldspar (K,Na)AlSi3O8, and Plagioclase Feldspar)

Greywhacke (River Pebble) (Graywacke (immature sandstone)) — sedimentary

Greywhacke (River Pebble)

Graywacke (immature sandstone)

Tektite (Indochinite) (Tektite (Lechatelierite-rich silica glass)) — Mineral-like (Natural Glass)

Tektite (Indochinite)

Tektite (Lechatelierite-rich silica glass)

Mineral-like (Natural Glass)

Emerald (Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)) — mineral

Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Tektite (Indochinite) (Tektite (Natural silica glass)) — meteorite

Tektite (Indochinite)

Tektite (Natural silica glass)

Chert / Quartz Pebble (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert / Quartz Pebble

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Scoria (Lava Rock) (Scoria) — igneous

Scoria (Lava Rock)

Scoria

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Siltstone (Siltstone (primarily composed of SiO2 with various clay minerals)) — sedimentary

Siltstone

Siltstone (primarily composed of SiO2 with various clay minerals)

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite (or Milky Quartz pebble) (Quartzite (primarily Silicon Dioxide, SiO2)) — metamorphic

Quartzite (or Milky Quartz pebble)

Quartzite (primarily Silicon Dioxide, SiO2)

Granite (Granite) — igneous

Granite

Granite