Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Category
Igneous, Sedimentary, Metamorphic
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Quartz with Iron Stains
Silicon Dioxide (SiO2) with FeOx inclusions
mineral
Greenschist
Chlorite schist
metamorphic
Biotite Schist
Biotite Schist (predominantly K(Mg,Fe)3AlSi3O10(OH,F)2)
metamorphic
Epidotite (Unakite-related)
Epidote-rich rock
metamorphic
Chlorite (Small Flakes/Sand)
Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
mineral
Unakite
Epidotized Granite
metamorphic
Epidote
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
mineral
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Moonstone
Orthoclase Feldspar (containing Albite lamellae), (KAlSi3O8)
mineral
Ruby (Corundum)
Corundum (Aluminum Oxide) with chromium trace elements, Al2O3
mineral
Calcite
Calcite (CaCO₃, Calcium Carbonate)
Mineral
Green Aventurine and Clear Quartz
Green Aventurine (Silicon Dioxide - SiO2 with Fuchsite inclusions); Clear Quartz (Silicon Dioxide - SiO2)
Mineral
Muscovite (Mica)
Muscovite - KAl2(AlSi3O10)(OH)2
Mineral
Milky Quartz
Quartz (SiO2)
Mineral
Mica Schist
Mica Schist
metamorphic
Schist
Mica Schist (Foliated Metamorphic Rock)
metamorphic
Epidote with quartz/feldspar
Epidote, Ca2(Al,Fe)3(SiO4)3(OH)
metamorphic
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Greenschist
Greenschist (Chlorite-actinolite schist)
metamorphic
Pyrite in Matrix
Iron Disulfide (FeS2)
mineral
Garnet (Almandine)
Almandine, Fe3Al2Si3O12
mineral
Garnet in Schist (Mica Schist with Garnet Inclusion)
Garnetiferous Mica Schist (X3Al2(SiO4)3)
metamorphic
Riverstone (Quartzite or Siltstone cobble)
Quartzite (primarily SiO2)
metamorphic
Greenschist
Chlorite-actinolite schist
metamorphic
Epidote in Quartz
Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)
Mineral
Garnet (likely Almandine or Pyrope)
Garnet (Group Name), Fe3Al2(SiO4)3 or Mg3Al2(SiO4)3
mineral
Specular Hematite
Specularite (Fe2O3)
mineral
Venetian Gold Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Yellow Chalcedony / Yellow Agate
Silicon Dioxide (SiO2)
mineral
Garnet
Garnet Group (complex nesosilicates with general formula X3Y2(SiO4)3, where X can be Ca, Mg, Fe2+, Mn2+ and Y can be Al, Fe3+, Cr3+, V3+)
Mineral
Ruby in Zoisite
Anyolite (Calcium Aluminum Silicate with Aluminum Oxide impurities)
metamorphic
Greenschist (or Serpentinite) with Quartz-Feldspar Vein
Metabasalt / Greenschist Facies Rock
metamorphic
Auriferous Quartz (Gold-bearing Quartz)
Silicon Dioxide (SiO2) with trace Gold (Au) and Iron Oxides
mineral
Red Garnet
Pyrope or Almandine (X3Y2(SiO4)3)
mineral
Garnet (Almandine or Pyrope)
Garnet group; (Fe,Mg)3Al2(SiO4)3
gemstone
Garnet
Garnet group (X3Y2(SiO4)3)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Mineral
Green Aventurine
Aventurine (Silicon dioxide, SiO₂)
Mineral; variety of Quartz
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Serpentinite (or Green Quartz Pebble)
Mg3Si2O5(OH)4 (Serpentine group) / SiO2 (Quartz mix)
metamorphic