Quartz (Milky/Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic Rock (Composed Of Multiple Minerals)
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Learn about Metamorphic Rock (Composed Of Multiple Minerals) in the encyclopedia
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Sandstone (with vugs)
Arenite / Sedimentary Sandstone
sedimentary
Granite
Granite (composed primarily of Quartz SiO2, Orthoclase KAlSi3O8, and Plagioclase NaAlSi3O8 to CaAl2Si2O8)
Igneous
Granite Pebble
Granite (Felsic Plutonic Rock)
igneous
Amygdaloidal Basalt
Amygdaloidal Basalt (with secondary mineral infilling)
igneous
Jade (likely Nephrite)
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Diorite
Intermediate plutonic igneous rock
igneous
Marble
Recrystallized Calcite Rock (CaCO3)
metamorphic
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Graphic Granite
Pegmatitic Granite (Quartz and Microcline K-Feldspar mixture)
igneous
Amygdaloidal Basalt
Amygdaloidal Basalt containing Zeolite and Calcite inclusions
igneous
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Agate (specifically Eye Agate / Chalcedony)
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
Nuummite
Orthoamphibole (Gedrite-Anthophyllite series)
metamorphic
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Sapphire (Raw)
Corundum (Al2O3)
mineral
Quartz / Vein Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite Pebble
Quartzite (SiO2) with mineral inclusions
metamorphic
Granite
Felsic Plutonic Rock
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
Sandstone (likely Arkosic)
Arenite (SiO2 based)
sedimentary
Sandstone (likely Arkose or Lithic)
Clastic sedimentary rock (SiO2 + impurities)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxides
sedimentary
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Basalt with Calcite Veins
Aphanitic mafic volcanic rock with CaCO3 inclusions
igneous
Yellow Quartzite
Metamorphic Rock (Mainly SiO2)
metamorphic
Quartz / Iron-Stained Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions/staining
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartzite with Garnet
Garnetiferous Quartzite (SiO2 + X3Y2(SiO4)3)
metamorphic
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Greenstone (Epidote/Chlorite Schist)
Metabasalt (composed primarily of Epidote Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH) and Chlorite (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
metamorphic
Graphite
Graphite (Native Carbon, C)
metamorphic
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt
igneous