Garnet
Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3
mineral
Category
Igneous, Sedimentary, Metamorphic
Browse igneous, sedimentary, metamorphic specimens identified by the Rock Identifier community.
Learn about Igneous, Sedimentary, Metamorphic in the encyclopedia
View all →
Quartz
Silicon Dioxide (SiO₂)
Mineral
Migmatite
Migmatite (Mixed Rock)
metamorphic
Quartz (likely Milky Quartz)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Ruby (varieties of Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Crystalline Quartz (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (Metamorphic rock of variable composition, typically SiO2 rich)
metamorphic
Raw Emerald (Emerald Beryl)
Beryl (Be3Al2Si6O18) with chromium/vanadium impurities
mineral
Almandine Garnet
Fe3Al2(SiO4)3
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Kyanite
Kyanite (Al2SiO5)
mineral
Greenstone or Epidote-rich rock
Epidote or Chlorite schist/greenstone
metamorphic
Labradorite (tumbled)
Labradorite (a plagioclase feldspar mineral between anorthite and albite; chemical formula: (Ca,Na)(Si,Al)4O8)
Mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Hematite)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (primarily SiO₂)
metamorphic
Sphalerite
Zinc Sulfide (ZnS)
mineral
Clear Quartz Cluster
Crystalline Silicon Dioxide (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Metamorphic
Quartz
Quartz (SiO2, Silicon Dioxide)
Mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Sandstone or Quartzite
Arenite (if sedimentary) / Quartzite (if metamorphic)
Sedimentary or Metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Mica Group Minerals
There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).
Mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral