Quartz Geode
Crystalline Silver Oxide (SiO2) in Calcareous Host
mineral
Category
Mineral Like Byproduct (Often Mistaken For Igneous Rock Or Meteorite)
Browse mineral like byproduct (often mistaken for igneous rock or meteorite) specimens identified by the Rock Identifier community.
Learn about Mineral Like Byproduct (Often Mistaken For Igneous Rock Or Meteorite) in the encyclopedia
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Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Opal
Hydrated amorphous silica (SiO2·nH2O)
mineral
Sandstone (Iron-stained)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Granite
Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)
igneous
Clear Quartz (beads in a bracelet)
Quartz (SiO2)
Mineral
Quartz with inclusions
Silicon Dioxide (SiO2)
mineral
Basalt Pebble
Basalt (Mafic Extrusive Igneous Rock)
igneous
Sandstone
Arenite (SiO2 based)
sedimentary
Pumice
Pumice (a highly vesicular volcanic glass)
igneous
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Pink Granite
Granite (High K-Feldspar variety)
igneous
Pearl (with Peridot)
Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4
mineral
Granite Cobble
Intrusive Igneous Rock (Quartz, Feldspar, Mica)
igneous
Vesicular Basalt with Amygdules
Amygdaloidal Basalt
igneous
Granite
Intrusive igneous rock
igneous
Granite
Granite
Igneous
Serpentine
Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4
metamorphic
Milky Quartz (Quartz Vein)
Silicon Dioxide (SiO2)
mineral
Diorite
Diorite (Intrusive igneous rock)
igneous
Sandstone
Quartz Arenite / Clastic Sedimentary Rock
sedimentary
Leopard Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Bauxite
Bauxite (Al2O3·2H2O)
sedimentary
Scoria
Scoria (Vesicular Basaltic Rock)
igneous
Pink Granite
Granite (Felsic Plutonic Rock)
igneous
Granitic Gneiss
Gneiss (containing Potassium Feldspar and Quartz)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
White Zircon
Zircon (Zirconium silicate, ZrSiO4)
mineral
Sandstone
Sedimentary rock composed mainly of quartz sand
sedimentary
Granite
Granite (compositionally: Quartz, Alkali Feldspar, and Plagioclase)
igneous
Fossilized Shark Tooth
Chondrichthyes (class)
fossil
River Gravel
Polymictic Gravel / Detrital Rock Aggregate
sedimentary
Greenstone
Greenschist
metamorphic
Snowflake Obsidian
Obsidian with Spherulitic Cristobalite (SiO2)
igneous
Quartz (Smoky/Grey Quartz Variant)
Silicon Dioxide (SiO2)
mineral
Scoria (Red Lava Rock)
Scoria (Vesicular Basalt/Andesite)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Corundum
Corundum (Al2O3)
Mineral
Pyrite (Fools Gold)
Iron Disulfide (FeS2)
mineral
Gneiss
Gneiss
metamorphic