Green Aventurine
Silicon Dioxide (SiO2 with Fuchsite inclusions)
metamorphic
Category
Igneous And Metamorphic
Browse igneous and metamorphic specimens identified by the Rock Identifier community.
Rough Emerald Crystals
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Serpentinite
Serpentinite (group of hydrous magnesium iron phyllosilicates)
metamorphic
Serpentinite
Serpentine rock (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4
metamorphic
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Mixed Gemstone Collection
SiO2 (Quartz varieties) and Biogenic CaCO3 (Nacre)
mineral
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite mica)
metamorphic
Yellow Aventurine
Silicon Dioxide with inclusions (SiO2 + Muscovite/Fuchsite)
mineral
Blue Quartz (Dumortierite Quartz)
Silicon Dioxide with Aluminum Borosilicate (SiO2 + AlAl6BSi3O18)
metamorphic
Aventurine (Green Quartz)
Quartz with Fuchsite inclusions (SiO2 with K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with Fe2+ trace elements)
Mineral
Marble
Recrystallized Calcite (CaCO3)
metamorphic
André Landed Here Rock (Glacial Erratic)
Granodiorite / Diorite (compositional estimate)
igneous
Orange Aventurine (Sunstone-style Quartzite)
Silicon Dioxide (SiO2) with Goethite or Hematite inclusions
metamorphic
Green Aventurine (Fuchsite-bearing Quartz)
Silicon Dioxide with Chromium-rich Muscovite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Nuummite
Nuummite (Orthorhombic amphiboles: Anthophyllite and Gedrite)
metamorphic
Quartzite
Quartzite (SiO2 silicon dioxide)
metamorphic
Green Quartzite (Aventurine-like)
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Quartzite Pebble (Beach Stone)
Quartzite (primarily SiO2)
metamorphic
Quartzite (River Cobble)
Quartzite (Metamorphosed Quartz Sandstone, SiO2)
metamorphic
Quartzite (Ferruginous)
Recrystallized Quartz (SiO2) with Iron Oxide inclusions
metamorphic
Quartzite (or Milky Quartz pebble)
Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)
metamorphic
Blue Quartzite (Aventurine)
Silicon Dioxide (SiO2) with mineral inclusions
metamorphic
Unakite
Epidotized Granite
metamorphic
Mica Schist
Mica Schist (Complex Silicate Rock)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Schist (Diamond Drill Core)
Mica Schist
metamorphic
Quartz (variety of colors)
SiO2 (Silicon Dioxide)
Mineral
Quartzite (River Cobble)
Quartzite (predominantly SiO2)
metamorphic
Quartzite River Rock
Quartzite (primarily SiO2)
metamorphic
Epidote
Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
Mineral
Pyritic Quartzite
Metequartzite with FeS2 (Pyrite) inclusions
metamorphic
Schist with Quartz Vein
Mica Schist with Crystalline Quartz (SiO2)
metamorphic
Nephrite Jade
Ca2(Mg,Fe)5Si8O22(OH)2 (Calcium magnesium iron silicate hydroxide)
metamorphic
Almandine Garnet in Matrix
Almandine, Fe3Al2(SiO4)3
metamorphic
Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
metamorphic
Ferruginous Quartzite (Red Chert/Jasper-like)
Metamorphosed Quartzite with Hematite inclusions (SiO2 + Fe2O3)
metamorphic
Rhodonite with Manganese Oxides
Rhodonite (Mn,Fe,Mg,Ca)SiO3
metamorphic