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

Amygdaloidal Basalt (Amygdaloidal Basalt (Mafic silicate with secondary mineral inclusions)) — Igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic silicate with secondary mineral inclusions)

Blue Apatite (Apatite, Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite, Ca5(PO4)3(F,Cl,OH)

Rutilated Quartz Bracelet (Quartz (Silicon Dioxide, SiO2) with inclusions of Rutile (Titanium Dioxide, TiO2)) — gemstone

Rutilated Quartz Bracelet

Quartz (Silicon Dioxide, SiO2) with inclusions of Rutile (Titanium Dioxide, TiO2)

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

Black Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Black Marble

Recrystallized Calcite (CaCO3)

Sedimentary Pebble (Sedimentary Rock Fragment) — sedimentary

Sedimentary Pebble

Sedimentary Rock Fragment

Biotite (Mica) (Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)) — mineral

Biotite (Mica)

Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)

Sandstone (Ferruginous/Banded) (Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Ferruginous/Banded)

Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)

Limonite (Ironstone) (FeO(OH)·nH2O (Hydrous ferric oxides)) — mineral

Limonite (Ironstone)

FeO(OH)·nH2O (Hydrous ferric oxides)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Conglomerate (River Rock) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Conglomerate (River Rock)

Clastic sedimentary rock (primarily SiO2)

Quartz Druzy Geode (Silicon Dioxide (SiO2) - Crystalline Variety) — mineral

Quartz Druzy Geode

Silicon Dioxide (SiO2) - Crystalline Variety

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

Sandstone

Clastic sedimentary rock (primarily SiO2)

Ferruginous Quartz (Quartz (Silicon Dioxide) - SiO2 with Iron Oxide inclusions) — mineral

Ferruginous Quartz

Quartz (Silicon Dioxide) - SiO2 with Iron Oxide inclusions

Green Quartzite (Quartzite (primarily SiO2 with inclusions)) — metamorphic

Green Quartzite

Quartzite (primarily SiO2 with inclusions)

Black Obsidian (Obsidian (Volcanic Glass, SiO2 + impurities)) — igneous

Black Obsidian

Obsidian (Volcanic Glass, SiO2 + impurities)

Obsidian (Obsidian (Volcanic Glass, SiO2 dominated)) — igneous

Obsidian

Obsidian (Volcanic Glass, SiO2 dominated)

Chert (Cherty Limestone / Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Cherty Limestone / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Conglomerate (Polymictic Conglomerate) — sedimentary

Conglomerate

Polymictic Conglomerate

Stilbite (Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O)) — mineral

Stilbite

Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O)

Greenstone with Epidote or Quartz Vein (Epidiorite or Metabasalt (composed largely of Chlorite, Epidote, and Amphibole)) — metamorphic

Greenstone with Epidote or Quartz Vein

Epidiorite or Metabasalt (composed largely of Chlorite, Epidote, and Amphibole)

Chalcedony (specifically Agate or Common Opal variety) (Cryptocrystalline Silica (SiO2)) — mineral

Chalcedony (specifically Agate or Common Opal variety)

Cryptocrystalline Silica (SiO2)

Silver (Native Element / Alloy) (Silver (Ag)) — mineral

Silver (Native Element / Alloy)

Silver (Ag)

Agate (translucent slice) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Agate (translucent slice)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Quartz Druzy (on Calcedony/Quartz base) (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy (on Calcedony/Quartz base)

Silicon Dioxide (SiO2)

Prehnite (Prehnite - Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2

Quartz Geode (Quartz (Silicon Dioxide, SiO2) Geode) — sedimentary

Quartz Geode

Quartz (Silicon Dioxide, SiO2) Geode

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Conglomerate (or Breccia / Porphyry) (Clastic Sedimentary Rock (Conglomerate / Sandstone)) — sedimentary

Conglomerate (or Breccia / Porphyry)

Clastic Sedimentary Rock (Conglomerate / Sandstone)

Dendritic Agate (or Dendritic Opal) (SiO2 (for Agate), SiO2·nH2O (for Opal)) — Mineral

Dendritic Agate (or Dendritic Opal)

SiO2 (for Agate), SiO2·nH2O (for Opal)

Petrified Wood (Silicified Wood (SiO2)) — mineral

Petrified Wood

Silicified Wood (SiO2)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Larimar (Pectolite (NaCa2Si3O8(OH))) — mineral

Larimar

Pectolite (NaCa2Si3O8(OH))

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

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Greenstone / Metabasalt (Chlorite schist or Epidiorite) — metamorphic

Greenstone / Metabasalt

Chlorite schist or Epidiorite

Quartz Geode (Unbroken) (Silicon Dioxide (SiO2)) — mineral

Quartz Geode (Unbroken)

Silicon Dioxide (SiO2)

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

Quartz (White/Milky)

Silicon Dioxide (SiO2)

Cullet Glass (Man-made Glass Slag) (Amorphous Silica (SiO2) with chemical additives) — Mineraloid

Cullet Glass (Man-made Glass Slag)

Amorphous Silica (SiO2) with chemical additives

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Malachite (Copper carbonate hydroxide [Cu2CO3(OH)2]) — Mineral

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

Desert Rose (Baryte (BaSO4) or Gypsum (CaSO4·2H2O) with sand inclusions) — mineral

Desert Rose

Baryte (BaSO4) or Gypsum (CaSO4·2H2O) with sand inclusions

Quartz Geode (Crystalline Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Crystalline Silicon Dioxide (SiO2)