Green Aventurine
Quartz (Silicon Dioxide) with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Category
Mineral (Treated)
Browse mineral (treated) specimens identified by the Rock Identifier community.
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Tiger's Eye (Hawk's Eye)
Silicified Crocidolite (Silicon Dioxide with inclusions of Crocidolite), SiO2
Mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Sunstone
Oligoclase (Plagioclase Feldspar Group) - (Ca, Na)(Al, Si)4O8
mineral
Iron-stained Quartz
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
mineral
Amethyst
SiO2 (Silicon Dioxide) - Purple variety of Quartz
mineral
Amazonite
Potassium Feldspar (Microcline) - K(AlSi3O8)
Mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron impurities
mineral
Green Aura Quartz
Silicon Dioxide (SiO2) bonded with metallic vapors (typically Gold, Chromium, or Titanium)
mineral
Quartz Druze (on Matrix)
Silicon Dioxide (SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron traces)
mineral
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with inclusions of Iron Oxide or Chlorite
mineral
Pyrite (on Shale/Matrix)
Iron Disulfide (FeS2)
mineral
Clear Quartz (Rock Crystal Fragments)
Silicon Dioxide (SiO2)
mineral
Sunstone
Plagioclase Feldspar (Na, Ca)(Al, Si)4O8 with Hematite or Copper inclusions
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Chrysoberyl (Cyclic Twin)
Beryllium Aluminum Oxide (BeAl2O4)
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Kimberlite
Kimberlite (Potassic ultramafic volcanic rock)
igneous
Druzzy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Quartz (Pale Rose or Milky Variety)
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Ferruginous)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Gold Nugget
Native Gold (Au)
mineral
Fossilized Coral
Anthozoa (Fossilized)
Sedimentary / Fossil
Granite (with Quartz and Mica)
Phaneritic Felsic Igneous Rock
igneous
Botryoidal Hematite (Kidney Ore)
Hematite (Fe2O3)
Mineral
Mica Schist
Muscovite/Biotite Schist
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Red Moss Agate (Jasper)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Sandstone with Manganese Dendrites/Oxide coatings
Arenite with Pyrolusite and Romanechite (MnO2)
sedimentary
Quartzite with Gneissic Banding
Quartzite (primarily SiO2) with mafic mineral inclusions
metamorphic
Oolite (Ooids)
Oolitic Limestone (Principal mineral: Calcite, CaCO3)
sedimentary
Chert (containing Calcite or Quartz inclusions)
Silicon Dioxide (SiO2) with varying mineral impurities
sedimentary
Quartzite
Quartzite (Primary mineral: Silicon Dioxide, SiO2)
metamorphic
Quartzite
Quartzite (Primary mineral: Silicon Dioxide, SiO2)
metamorphic
Onyx Marble (also commonly called Onyx)
Calcite (CaCO3), often with other mineral impurities
Sedimentary Rock (specifically a type of Travertine)
Porphyritic Basalt or Diabase with Plagioclase Phenocrysts
Porphyritic Basalt or Diabase; Mineral: Plagioclase Feldspar
Igneous
Oolite or Oolitic Limestone
Oolitic Limestone (Principal mineral: Calcite, CaCO3)
sedimentary
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous