Rock Identifier

Category

Mineralological Variety

Browse mineralological variety specimens identified by the Rock Identifier community.

Learn about Mineralological Variety in the encyclopedia

Albite

Flame Obsidian

Lace Obsidian

Oligoclase

Brookite

Sodalite

Syenite

Microcline

Leopard Obsidian

Orthoclase

Starry Night Obsidian

Pumpkin Obsidian

Pumpkin Obsidian

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Onyx (Chalcedony (SiO2) with parallel banding) — mineral

Onyx

Chalcedony (SiO2) with parallel banding

Rose Quartz (Silicon Dioxide (SiO2) with trace Titanium, Manganese, or Iron) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace Titanium, Manganese, or Iron

Nephrite Jade (Ca2(Mg, Fe)5Si8O22(OH)2) — metamorphic

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2

Amazonite (K(AlSi3O8)) — mineral

Amazonite

K(AlSi3O8)

Peridot (Olivine (Mg, Fe)₂SiO₄) — mineral

Peridot

Olivine (Mg, Fe)₂SiO₄

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Caribbean Calcite (Aragonite and Calcite (CaCO3)) — mineral

Caribbean Calcite

Aragonite and Calcite (CaCO3)

Bloodstone (Heliotrope) — Mineral

Bloodstone

Heliotrope

Chert (Yellow variety / Jasper) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow variety / Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Selenite gypsum crystal (Gypsum (CaSO₄·2H₂O), fibrous/selenite variety) — mineral

Selenite gypsum crystal

Gypsum (CaSO₄·2H₂O), fibrous/selenite variety

Chalcedony (Silicon Dioxide (SiO2)) — sedimentary

Chalcedony

Silicon Dioxide (SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert (Gravel Bit) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Gravel Bit)

Microcrystalline silica (SiO2)

Ruby (varietal of Corundum) (Corundum (Al2O3:Cr)) — gemstone

Ruby (varietal of Corundum)

Corundum (Al2O3:Cr)

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

Polished ocean jasper / orbicular jasper (likely)

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

Nephrite Jade (Hetian Yu) (Tremolite-Actinolite solid solution Ca2(Mg,Fe)5Si8O22(OH)2) — metamorphic

Nephrite Jade (Hetian Yu)

Tremolite-Actinolite solid solution Ca2(Mg,Fe)5Si8O22(OH)2

Polished agate/chalcedony fragment (probable) (Microcrystalline quartz, SiO₂; chalcedony with possible iron-oxide banding) — gemstone

Polished agate/chalcedony fragment (probable)

Microcrystalline quartz, SiO₂; chalcedony with possible iron-oxide banding

Tumbled red jasper (Jasper, microcrystalline quartz (SiO₂), commonly colored by iron oxides) — mineral

Tumbled red jasper

Jasper, microcrystalline quartz (SiO₂), commonly colored by iron oxides

Rough Quartz (Silicon Dioxide (SiO2)) — mineral

Rough Quartz

Silicon Dioxide (SiO2)

Polished/tumbled brecciated jasper (Silica-rich microcrystalline quartz (chalcedony), commonly with iron-oxide minerals and assorted lithic fragments) — sedimentary

Polished/tumbled brecciated jasper

Silica-rich microcrystalline quartz (chalcedony), commonly with iron-oxide minerals and assorted lithic fragments

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Polished brown jasper (Jasper (microcrystalline quartz, SiO₂), likely iron-oxide-rich variety) — mineral

Polished brown jasper

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

Jasper (brecciated or orbicular jasper) (Microcrystalline quartz/chalcedony (SiO₂), colored by iron oxides and other impurities) — mineral

Jasper (brecciated or orbicular jasper)

Microcrystalline quartz/chalcedony (SiO₂), colored by iron oxides and other impurities

Chert / Flint (Microcrystalline quartz (SiO2)) — sedimentary

Chert / Flint

Microcrystalline quartz (SiO2)

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

Chert (Flint)

Microcrystalline quartz (SiO2)

Chert / Flint Nodule (Cryptocrystalline quartz (SiO2)) — sedimentary

Chert / Flint Nodule

Cryptocrystalline quartz (SiO2)

Polished chert (likely jasper or iron-rich chert) (Microcrystalline quartz, SiO₂, colored by iron oxides and possibly clay minerals) — sedimentary

Polished chert (likely jasper or iron-rich chert)

Microcrystalline quartz, SiO₂, colored by iron oxides and possibly clay minerals

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Agate Sliced Nodule (Silicon Dioxide (SiO2)) — mineral

Agate Sliced Nodule

Silicon Dioxide (SiO2)

Labradorite (Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8) — mineral

Labradorite

Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8

Chert (River Pebble) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (River Pebble)

Microcrystalline Quartz (SiO2)

Quartz (Milky/Clear variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Ocean Jasper (SiO2, highly silicified rhyolite or spherulitic chalcedony) — mineral

Ocean Jasper

SiO2, highly silicified rhyolite or spherulitic chalcedony

Raw Sapphire / Corundum (Corundum (Al2O3 - Aluminium oxide)) — mineral

Raw Sapphire / Corundum

Corundum (Al2O3 - Aluminium oxide)