Rock Identifier

Category

Mineralogical Specimen

Browse mineralogical specimen specimens identified by the Rock Identifier community.

Learn about Mineralogical Specimen in the encyclopedia

Emerald in Matrix

Emerald in Matrix

Morganite Crystal

Morganite Crystal

Aquamarine Matrix

Aquamarine Matrix

Emerald Crystal

Emerald Crystal

Aquamarine Crystal

Aquamarine Crystal

Mushroom Tourmaline

Mushroom Tourmaline

White Beryl

Smoky Quartz

Clear Obsidian

Goshenite Crystal

Goshenite Crystal

Magnetite

Crocoite

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

Jasper / Quartz Pebble

Silicon dioxide (SiO2) microcrystalline quartz

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

Grape Agate

Chalcedony (Silicon Dioxide, SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood (Permineralized organic matter, głównie $SiO_2$)) — fossil

Petrified Wood

Silicified Wood (Permineralized organic matter, głównie $SiO_2$)

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) in matrix) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) in matrix

Leopard Skin Jasper or Ring Jasper (Microcrystalline Quartz (Chalcedony with impurities)) — sedimentary

Leopard Skin Jasper or Ring Jasper

Microcrystalline Quartz (Chalcedony with impurities)

Petoskey Stone (Hexagonaria percarinata) — fossil

Petoskey Stone

Hexagonaria percarinata

Yellow Jasper (Silicon Dioxide (Microcrystalline Quartz, SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (Microcrystalline Quartz, SiO2)

Amazonite (Microcline (KAlSi3O8)) — mineral

Amazonite

Microcline (KAlSi3O8)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Brecciated Jasper (Silicon Dioxide (SiO2) with hematite and other mineral impurities) — sedimentary

Brecciated Jasper

Silicon Dioxide (SiO2) with hematite and other mineral impurities

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Red Jasper (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Red Jasper

Microcrystalline Quartz (Chalcedony), SiO2

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Quartzite with Iron Staining (Metamorphic Quartz Sandstone) — metamorphic

Quartzite with Iron Staining

Metamorphic Quartz Sandstone

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Epidote (Epidote (Ca2(Al, Fe)3(SiO4)3(OH))) — mineral

Epidote

Epidote (Ca2(Al, Fe)3(SiO4)3(OH))

Aquamarine (Beryl (Be3Al2Si6O18)) — gemstone

Aquamarine

Beryl (Be3Al2Si6O18)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Red Jasper (Microcrystalline Quartz (Chalcedony), SiO2 with iron oxide inclusions) — sedimentary

Red Jasper

Microcrystalline Quartz (Chalcedony), SiO2 with iron oxide inclusions

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

Rose Quartz

Quartz (Silicon Dioxide, SiO2)

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

Emerald

Beryl (Be3Al2(SiO3)6)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (Iron-Stained)

Silicon Dioxide (SiO2)

Quartz with Mafic/Chlorite Veins (Silicon Dioxide (SiO2) with Chlorite/Epidote cross-veining) — metamorphic

Quartz with Mafic/Chlorite Veins

Silicon Dioxide (SiO2) with Chlorite/Epidote cross-veining

Milky Quartz Pebble with Inclusions (Quartz (SiO2) with chlorite or mica inclusions) — mineral

Milky Quartz Pebble with Inclusions

Quartz (SiO2) with chlorite or mica inclusions

Granite Pebble (Granite) — igneous

Granite Pebble

Granite

Porphyritic Basalt (Basalt (porphyritic texture)) — igneous

Porphyritic Basalt

Basalt (porphyritic texture)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Fire Agate (Silicon Dioxide (SiO2 with iron oxide inclusions)) — gemstone

Fire Agate

Silicon Dioxide (SiO2 with iron oxide inclusions)

Rhodochrosite (Manganese Carbonate (MnCO3)) — mineral

Rhodochrosite

Manganese Carbonate (MnCO3)

Citrine Quartz (Macrocrystalline Quartz (SiO2)) — mineral

Citrine Quartz

Macrocrystalline Quartz (SiO2)

Quartzite Pebble with Quartz Vein (Metamorphic Sandstone (Quartzite) with Hydrothermal Quartz) — metamorphic

Quartzite Pebble with Quartz Vein

Metamorphic Sandstone (Quartzite) with Hydrothermal Quartz

Mangano Calcite (Manganocalcite (Ca,Mn)CO3) — mineral

Mangano Calcite

Manganocalcite (Ca,Mn)CO3

Chert Arrowhead (Jasper) (Chert (Cryptocrystalline Quartz, SiO2)) — sedimentary

Chert Arrowhead (Jasper)

Chert (Cryptocrystalline Quartz, SiO2)