Andesite
Andesite (Intermediate Volcanic Rock)
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Andesite
Andesite (Intermediate Volcanic Rock)
Aquamarine with Sunstone
Aquamarine (Be3Al2Si6O18), Sunstone (Na,Ca)Al(Si,Al)Si2O8
Basalt with Mineral Vein (Cobble)
Basalt (with likely Quartz/Calcite vein)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Quartz Geode (with Calcite influence)
Silicon Dioxide (SiO2) with possible Calcium Carbonate (CaCO3)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Pyrite in Matrix (Fool's Gold)
Iron Sulfide (FeS2)
Red Jasper
Jasper (Silicon Dioxide) - SiO2
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Rutilated Quartz
Quartz (SiO2) with Rutile (TiO2) inclusions
Travertine (Tufa)
Calcium Carbonate (CaCO3)
Red Rhyolite Porphyry
Rhyolite (Porphyritic texture)
Greenstone (Epidisite / Chlorite Schist)
Metabasalt (often contains Epidote Ca2Al2(Fe3+,Al)(SiO4)(Si2O7)O(OH) and Chlorite)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Chert (Common Opal/Agate mixture)
Microcrystalline Quartz (SiO2)
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Rhyolite (Porphyritic)
Rhyolite (Felsic Extrusive Igneous Rock)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert Breccia
Brecciated Microcrystalline Quartz (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
Yellow Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Pumice
Pumice (Vesicular Volcanic Glass)
Chrysocolla in Matrix
Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O
Magnetite
Magnetite (Fe3O4)
Dalmatian Stone
Peralkaline Feldsphathic Igneous Rock
Citrine
SiO2 (Silicon Dioxide)
Dalmatian Stone
Peralkaline rhyolite with arfvedsonite (formerly incorrectly called Dalmatian Jasper)
Citrine
SiO2 (Silicon Dioxide)
Obsidian (Black Obsidian)
Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)
Granite
Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)
Dalmatian Jasper
Dalmatian Stone (a microcrystalline quartz and feldspar rock with arfvedsonite)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Fluorite
Calcium Fluoride (CaF2)
Granite
Phaneritic Felsic Igneous Rock
Rose Quartz
Quartz (SiO₂), specifically a variety of Quartz
Green Aventurine
Aventurine (a variety of Quartz, SiO2 with fuchsite inclusions)