Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Category
Mineral Like Byproduct (Technogenic)
Browse mineral like byproduct (technogenic) specimens identified by the Rock Identifier community.
Learn about Mineral Like Byproduct (Technogenic) in the encyclopedia
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Agate (Banded Chalcedony)
Agate (Silicon Dioxide, SiO2)
mineral
Garnet
Garnet group (X3Y2(SiO4)3)
mineral
Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
mineral
Fossilized Coprolite
Coprolite (fossilized feces)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Desert Rose (Gypsum Rose)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Dendritic Opal (Merlinite)
Hydrated Silica with Manganese/Iron oxide inclusions (SiO2·nH2O)
mineral
Obsidian
Volcanic Glass (SiO2 rich)
igneous
Greenstone
Greenschist
metamorphic
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Blue Sapphire
Corundum (Al2O3) with iron and titanium impurities
mineral
Almandine Garnet
Iron aluminum silicate (Fe3Al2(SiO4)3)
mineral
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Plagioclase Feldspar
Plagioclase Feldspar Series (NaAlSi3O8 - CaAl2Si2O8)
Mineral
Red Garnet (Almandine-Pyrope series)
Garnet Group, Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz with Limonite inclusions
sedimentary
Native Sulfur
Sulfur (S)
mineral
Gneiss
Gneiss (Foliated Metamorphic Rock)
metamorphic
Greenstone (River Pebble)
Metabasalt / Greenschist
metamorphic
Glaucophane Schist (Blueschist)
Glaucophane Schist
metamorphic
Sandstone (River Cobble)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Petrified Coral (Agatized Coral)
Fossilized Anthozoa (Silicon Dioxide replacement - SiO2)
fossil
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
mineral
Diorite
Phaneritic intermediate plutonic rock
igneous
Mica Schist
Mica Schist (Intermediate-grade Metamorphic Rock)
metamorphic
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide)
Igneous
Garden Quartz (Lodalite)
Silicon Dioxide with various mineral inclusions (SiO2)
mineral
Obsidian
Amorphous volcanic glass (SiO2)
igneous
Echinoid Fossil / Fossilized Sea Urchin
Echinoidea
fossil
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
mineral
Green Jasper (Banded Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Brecciated Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Ferruginous Sandstone
Arenite with Iron-Oxide Cement
sedimentary
Limonite (Iron Ore)
Hydrous ferric oxides (FeO(OH)·nH2O)
sedimentary
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral