Rock Identifier

Category

Mineral Like Biological Tissue

Browse mineral like biological tissue specimens identified by the Rock Identifier community.

Learn about Mineral Like Biological Tissue in the encyclopedia

Blue Line Jasper

Lime Green Tourmaline

Lime Green Tourmaline

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Sandstone (Fluvial Pebble) (Arenite) — sedimentary

Sandstone (Fluvial Pebble)

Arenite

Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

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

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Sandstone (Silicon dioxide, SiO2 based)) — sedimentary

Sandstone

Sandstone (Silicon dioxide, SiO2 based)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Picture Jasper (Silicon Dioxide (SiO2) with iron oxide and organic impurities) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and organic impurities

Petrified Wood (Silicified Wood (primarily SiO₂ / Silicon Dioxide)) — mineral

Petrified Wood

Silicified Wood (primarily SiO₂ / Silicon Dioxide)

Specular Hematite (Specularite (Iron Oxide, Fe2O3)) — mineral

Specular Hematite

Specularite (Iron Oxide, Fe2O3)

Red Jasper (Red Jasper (SiO2 with Hematite inclusions)) — mineral

Red Jasper

Red Jasper (SiO2 with Hematite inclusions)

Muscovite Mica (Muscovite - KAl2(AlSi3O10)(OH)2) — mineral

Muscovite Mica

Muscovite - KAl2(AlSi3O10)(OH)2

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

Basalt

Basalt (Aphanitic Mafic Volcanic Rock)

Green Aventurine (Quartz with Fuchsite inclusions (SiO2)) — mineral

Green Aventurine

Quartz with Fuchsite inclusions (SiO2)

Quartz Geode or Nodular Quartz (Silicon Dioxide (SiO2) in Host Matrix) — mineral

Quartz Geode or Nodular Quartz

Silicon Dioxide (SiO2) in Host Matrix

Fossilized Shark Tooth (Carcharocles sp. (likely Lemon or Sand Tiger)) — sedimentary

Fossilized Shark Tooth

Carcharocles sp. (likely Lemon or Sand Tiger)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Milky Quartz with Iron Inclusions (Silicon Dioxide (SiO2) with Fe2O3) — mineral

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2) with Fe2O3

Amber (Succinate (Fossilized Tree Resin)) — gemstone

Amber

Succinate (Fossilized Tree Resin)

Milky Quartz or Calcite Pebble (Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)) — mineral

Milky Quartz or Calcite Pebble

Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) within Metasedimentary or Igneous matrix) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Metasedimentary or Igneous matrix

Quartz Geode or Druzy Quartz in Host Rock (Silicon Dioxide (SiO2)) — mineral

Quartz Geode or Druzy Quartz in Host Rock

Silicon Dioxide (SiO2)

Malachite (Copper(II) carbonate hydroxide, Cu2CO3(OH)2) — mineral

Malachite

Copper(II) carbonate hydroxide, Cu2CO3(OH)2

Septarian Nodule (Dragon Stone) (Septarian concretion (primarily Calcite, Aragonite, and Limestone/Claystone mixture)) — sedimentary

Septarian Nodule (Dragon Stone)

Septarian concretion (primarily Calcite, Aragonite, and Limestone/Claystone mixture)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Blue Apatite (Fluorapatite / Chlorapatite [Ca5(PO4)3(F,Cl,OH)]) — mineral

Blue Apatite

Fluorapatite / Chlorapatite [Ca5(PO4)3(F,Cl,OH)]

Green Slag Glass (Amorphous Silica / Glassy Blast Furnace Slag) — Mineraloid (Industrial byproduct)

Green Slag Glass

Amorphous Silica / Glassy Blast Furnace Slag

Mineraloid (Industrial byproduct)

Banded Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Muscovite Mica Schist (Muscovite Schist (KAl2(AlSi3O10)(OH)2)) — metamorphic

Muscovite Mica Schist

Muscovite Schist (KAl2(AlSi3O10)(OH)2)

Chert (Jasper-like Silicate) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper-like Silicate)

Microcrystalline Quartz (SiO2)

Tufa (Calcareous Tufa (CaCO3)) — sedimentary

Tufa

Calcareous Tufa (CaCO3)

Limonite (Ironstone Concretion) (Limonite (FeO(OH)·nH2O)) — mineral/sedimentary

Limonite (Ironstone Concretion)

Limonite (FeO(OH)·nH2O)

mineral/sedimentary

Amber (Succinates (Fossilized Tree Resin)) — mineraloid

Amber

Succinates (Fossilized Tree Resin)

Quartz (likely Milky Quartz or Chalcedony) (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz (likely Milky Quartz or Chalcedony)

Quartz (SiO2 - Silicon Dioxide)

Mixed Gemstones and Minerals (Mixed Silicates and Oxides (Quartz/Amethyst, Aventurine, Sodalite, Chert, Jasper)) — mineral

Mixed Gemstones and Minerals

Mixed Silicates and Oxides (Quartz/Amethyst, Aventurine, Sodalite, Chert, Jasper)

Howlite (Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)) — mineral

Howlite

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Syenite (Syenite (Phaneritic Igneous Rock)) — igneous

Syenite

Syenite (Phaneritic Igneous Rock)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Amygdaloidal Basalt (Amygdaloidal Basalt (Mafic volcanic rock)) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic volcanic rock)

Limonite pseudomorph after pyrite (Goethite / Limonite pseudomorph after Pyrite (Fe3+O(OH) replacing FeS2)) — mineral

Limonite pseudomorph after pyrite

Goethite / Limonite pseudomorph after Pyrite (Fe3+O(OH) replacing FeS2)

Gneiss (Gneiss (High-grade regional metamorphic rock)) — Metamorphic

Gneiss

Gneiss (High-grade regional metamorphic rock)

Scoria (Lava Rock) (Vesicular Basalt / Scoria) — igneous

Scoria (Lava Rock)

Vesicular Basalt / Scoria