Rock Identifier

Category

Organic (Paper And Cellulose)

Browse organic (paper and cellulose) specimens identified by the Rock Identifier community.

Basalt (Basalt (containing Pyroxene, Plagioclase feldspar, and Olivine)) — igneous

Basalt

Basalt (containing Pyroxene, Plagioclase feldspar, and Olivine)

Basalt River Pebble (Basalt) — igneous

Basalt River Pebble

Basalt

Basalt (Vesicular or Scoriaceous) (Aphanitic Mafic Volcanic Rock) — igneous

Basalt (Vesicular or Scoriaceous)

Aphanitic Mafic Volcanic Rock

Basalt (Mafic Igneous Rock) — igneous

Basalt

Mafic Igneous Rock

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (Basalt (Vitreous to Aphanitic Mafic Igneous Rock)) — igneous

Basalt

Basalt (Vitreous to Aphanitic Mafic Igneous Rock)

Vesicular Basalt (Basalt with secondary mineral infilling (Amygdaloidal Basalt)) — igneous

Vesicular Basalt

Basalt with secondary mineral infilling (Amygdaloidal Basalt)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (Basalt (extrusive volcanic mafic rock)) — igneous

Basalt

Basalt (extrusive volcanic mafic rock)

Basalt with Vesicular Texture (Basalt (SiO2 range 45-52%)) — igneous

Basalt with Vesicular Texture

Basalt (SiO2 range 45-52%)

Basalt with Calcite Veining (Aphanitic Mafic Igneous Rock (Basalt) with CaCO3) — igneous

Basalt with Calcite Veining

Aphanitic Mafic Igneous Rock (Basalt) with CaCO3

Vesicular Basalt (Extrusive mafic igneous rock) — igneous

Vesicular Basalt

Extrusive mafic igneous rock

Basalt with Scoria and potential Olivine/Pyroxene inclusions (Vesicular Basalt) — igneous

Basalt with Scoria and potential Olivine/Pyroxene inclusions

Vesicular Basalt

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt River Pebble (Basalt (Mafic volcanic rock)) — igneous

Basalt River Pebble

Basalt (Mafic volcanic rock)

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Basalt River Pebble (Mafic Igneous Rock (Fine-grained Basalt)) — igneous

Basalt River Pebble

Mafic Igneous Rock (Fine-grained Basalt)

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

Basalt (River Pebble)

Extrusive Mafic Igneous Rock

Basalt with Plagioclase Phenocrysts (Porphyritic Basalt) — igneous

Basalt with Plagioclase Phenocrysts

Porphyritic Basalt

Vesicular Basalt with Xenocrysts (Mafic Igneous Plutonic/Extrusive Complex) — igneous

Vesicular Basalt with Xenocrysts

Mafic Igneous Plutonic/Extrusive Complex

Native Silver (Silver (elemental Ag)) — mineral

Native Silver

Silver (elemental Ag)

Basalt with Iron Oxidation (Vesicular Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt with Iron Oxidation

Vesicular Basalt (Aphanitic Mafic Igneous Rock)

Basalt (Basalt (Mafic volcanic rock)) — Igneous

Basalt

Basalt (Mafic volcanic rock)

Crushed Rock (Basalt) (Basalt (Aphanitic Mafic Igneous Rock)) — Igneous

Crushed Rock (Basalt)

Basalt (Aphanitic Mafic Igneous Rock)

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

River Pebble (Basalt)

Basalt (Aphanitic Mafic Igneous Rock)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt (Aphanitic Mafic Igneous Rock) — igneous

Basalt

Aphanitic Mafic Igneous Rock

Basalt with Quartz Veins (Basalt (SiO2 range 45-52%)) — igneous

Basalt with Quartz Veins

Basalt (SiO2 range 45-52%)

Basalt (Basalt (composition: Plagioclase, Pyroxene, and Olivine)) — igneous

Basalt

Basalt (composition: Plagioclase, Pyroxene, and Olivine)

Basalt River Stone (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt River Stone

Basalt (Aphanitic Mafic Igneous Rock)

Olivine (Peridot) (Magnesium Iron Silicate (Mg, Fe)2SiO4) — Mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4

Diabase (Dolerite) (Mafic Intrusive Igneous Rock) — igneous

Diabase (Dolerite)

Mafic Intrusive Igneous Rock

Basalt (Basalt (dominated by plagioclase feldspar and pyroxene)) — igneous

Basalt

Basalt (dominated by plagioclase feldspar and pyroxene)

Basalt (Basalt) — igneous

Basalt

Basalt

Diamond (in Matrix) (Carbon (C)) — mineral

Diamond (in Matrix)

Carbon (C)

Basalt River Stones (Aphantic Mafic Igneous Rock (Basalt)) — igneous

Basalt River Stones

Aphantic Mafic Igneous Rock (Basalt)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (River Cobble) (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt (River Cobble)

Basalt (Mafic Extrusive Igneous Rock)

Basalt (Mafic volcanic rock (Basalt)) — igneous

Basalt

Mafic volcanic rock (Basalt)

Man-made Synthetic Material (Costume Faux Fur) (Synthetic Polymer (Polyester/Acrylic)) — not a rock

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Porphyritic Andesite (Andesite (Porphyry)) — igneous

Porphyritic Andesite

Andesite (Porphyry)

Andesite (Andesite (Intermediate Volcanic Rock)) — igneous

Andesite

Andesite (Intermediate Volcanic Rock)