Quartzite
Quartzite (primarily SiO2)
Category
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
Quartzite
Quartzite (primarily SiO2)
Quartzite pebble
Metamorphic rock dominated by SiO2 (Quartz)
Unakite (Epidotized Granite)
Unakite; primarily composed of Epidote (Ca2(Al,Fe)3(SiO4)3(OH)), Orthoclase (KAlSi3O8), and Quartz (SiO2)
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
Schist
Mica Schist (predominantly Muscovite or Biotite)
Greenschist / Migmatite
Regional Metamorphic Complex (Facies: Greenschist to Amphibolite)
Wishing Stone (Quartz-Veined Basalt)
Amygdaloidal Basalt with Quartz (SiO2) vein
Epidote-bearing Granite (Unakite-like)
Epidotized Granite
White Topaz
Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2
Brecciated Quartzite
Brecciated Quartzite
Green Aventurine
Aventurine Quartz (SiO2 containing Fuchsite)
Yellow Aventurine
Quartzite (formula: SiO2 with inclusions)
Fuchsite in Quartz
Muscovite (KAl2(AlSi3O10)(OH)2) containing Chromium + Quartz (SiO2)
Rhodonite
(Mn,Fe,Mg,Ca)SiO3
Graphite
Graphite (Carbon, C)
Unakite
Unakite (Altered Granite)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Biotite Schist
Biotite Schist (containing K(Mg,Fe)3AlSi3O10(OH)2)
Quartz
Silicon Dioxide (SiO₂)
Marble
Recrystallized Calcite (CaCO3)
Granite (weathered/river-tumbled)
Granite (Plutonic Igneous Rock)
Schist
Mica Schist (primarily consisting of muscovite, biotite, and quartz)
Mica Schist
Mica Schist (Main mineral constituents: Muscovite/Biotite, Quartz, Feldspar)
K2 Jasper (K2 Granite)
Azurite in Granite (Al2Cu3(CO3)2(OH)2 in NaAlSi3O8)
Phyllite
Phyllite (regional metamorphic rock)
Quartzite with Hematite staining
Metamorphic Rock (rich in SiO2)
Schist
Schist (Crystalline metamorphic rock)
Quartzite with Chlorite
Metamorphic Quartzite (SiO2) with phyllosilicates
Schist
Mica Schist (Metamorphic Rock)
Quartzite Pebble (with Iron Inclusions)
Metamorphic Rock (Mainly SiO2)
Quartzite
Metamorphic Rock (Mainly SiO2)
River Stone (Quartzite)
Metamorphic Quartzite (primarily SiO2)
Quartzite pebble
Metamorphic rock (mainly SiO2)
Pink Quartzite
Silica (SiO2) - Metamorphic rock
Quartzite
Metamorphic Quartzite (predominantly SiO2)
Quartzite (with Mica/Feldspar)
Metamorphic Quartzite (SiO2 predominantly)
Quartzite
Metamorphic rock (primarily SiO2)
Orange Quartzite
Metamorphic Quartzite (primarily SiO2)
Quartzite River Rock
Metamorphic Quartzite (primarily SiO2)
Quartzite (River Cobble)
Metamorphic Quartz-rich Rock
Quartzite
Metamorphic Rock (Mainly SiO2)
Quartzite River Stone
Metamorphic Quartzite (primarily SiO2)