Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Category
Browse not a rock (animated character) specimens identified by the Rock Identifier community.
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Dyed Blue Agate
Silicon Dioxide (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Rainbow Fluorite
Fluorite (Calcium Fluoride, CaF2)
Pyrite
Iron Sulfide (FeS2)
Clear Quartz (Rock Crystal Fragments)
Silicon Dioxide (SiO2)
Common Opal
Amorphous Hydrated Silica (SiO2·nH2O)
Clear Quartz
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite in Matrix
Iron Sulfide (FeS2)
Botryoidal Agate
Chalcedony (Silicon Dioxide, SiO2)
Fluorite
Calcium Fluoride (CaF2)
Gneiss
High-grade regional metamorphic Gneiss
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Chalcedony (Common Opal or Agate)
Silicon Dioxide (SiO2)
Dyed Agate Geode (Pink/Magenta)
Silicon Dioxide (SiO2) - variety of Chalcedony/Quartz
Potassium Feldspar
Orthoclase (KAlSi3O8)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Mn/Fe oxides)
Agate (Chert/Chalcedony)
Silicon Dioxide (SiO2)
Andesite
Andesite (Intermediate Volcanic Rock)
Howlite and Tree Agate
Calcium Borosilicate Hydroxide (Howlite) and Silicon Dioxide (Agate/Quartz)
Amethyst (Tumbled Stone)
Amethyst (Silicon Dioxide with Iron impurities, SiO2)
Dalmation Jasper (or Dalmation Stone)
Dalmation Stone (composed of Perthite, Quartz, and Arfvedsonite)
Serpentinite
Serpentinite (complex silicate of magnesium, (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
Zoisite with Ruby (Anyolite)
Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)
Chert (within Limestone)
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Quartzite
Quartzite (SiO2)
Amazonite
Microcline (KAlSi3O8, a variety of Potassium Feldspar)
Gneiss
Gneiss
Carnelian
Carnelian (Chert/Chalcedony variety of Quartz, SiO2)
Sandstone (Quartzite-rich Cobble)
Clastic sedimentary rock (primarily SiO2)
Chert (Smoky variety)
Microcrystalline Quartz (SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Jasper (Red Jasper with Quartz veins)
Jasper (Silicon Dioxide, SiO2)
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
Agate
Silicon dioxide (SiO2)
Agate
Silicon Dioxide (SiO2) - Banded Chalcedony
Amethyst
Amethyst (Silicon Dioxide, SiO2 with iron impurities)