Green Aventurine (Fuchsite-bearing Quartz)
Silicon Dioxide with Chromium-rich Muscovite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Category
Browse metamorphic or sedimentary specimens identified by the Rock Identifier community.
Green Aventurine (Fuchsite-bearing Quartz)
Silicon Dioxide with Chromium-rich Muscovite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Epidote with Unakite characteristics
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Nuummite
Nuummite (Orthorhombic amphiboles: Anthophyllite and Gedrite)
Quartzite
Quartzite (SiO2 silicon dioxide)
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)
Garnet Beads
Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)
Green Quartzite (with Hematite inclusions)
Metamorphic Quartz (SiO2) with various inclusions
Pink Quartzite
Quartzite (High-silica metamorphic rock)
Quartzite River Rock
Quartzite (SiO2 based metamorphic rock)
Quartzite
Quartzite (SiO2-rich metamorphic rock)
Quartzite with Iron Inclusions
Metamorphic Quartz (SiO2) with Hematite/Limonite
Eclogite
Eclogite (Omphacite-Garnet Metamorphic Rock)
Quartzite Pebble
Metamorphic Rock (composed mainly of SiO2)
Quartzite with Mica
Metamorphic Quartzite (SiO2 + Mica phyllosilicates)
Quartzite with inclusions
Metamorphic Quartzite (SiO2 with accessory minerals)
Quartzite
Quartzite (SiO2-rich metamorphic rock)
Quartzite with Hematite staining
Metamorphic Quartzite (SiO2) with Ferruginous Oxides
Quartzite with Chlorite staining
Metamorphic Quartzite (SiO2 with Chlorite inclusions)
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
Anthracite Coal
Anthracite (Carbon-based metamorphic rock)
Quartzite (Yellow/Tan)
Metamorphic Rock composed of Quartz (SiO₂)
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
Granite Gneiss
Gneiss (high-grade metamorphic rock)
Granitic Gneiss
Gneiss (High-grade metamorphic rock)
Quartzite Cobble
Metamorphic Quartz-rich Rock (SiO2)
Slate
Phyllo-silicate based metamorphic rock
Anthracite Coal
Low-grade metamorphic carbonaceous rock
Slate with Iron Staining
Low-grade Metamorphic Mudstone (Slate)
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
Jadeite and Nephrite (Jade)
Sodium Aluminum Silicate (Jadeite) / Calcium Magnesium Iron Silicate (Nephrite)
Quartzite
Quartzite (mostly SiO2)
Unakite
Epidotized Granite
Green Quartzite (Aventurine-like)
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Quartzite Pebble (Beach Stone)
Quartzite (primarily SiO2)
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)
Quartzite (Ferruginous)
Recrystallized Quartz (SiO2) with Iron Oxide inclusions
Greenschist
Greenschist (Chlorite Schist)
Quartzite (River Cobble)
Quartzite (Metamorphosed Quartz Sandstone, SiO2)
Quartzite River Rock
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)