Quartz Druzy
Crystalline Silicon Dioxide (SiO2)
mineral
Category
Mineral (Specifically, A Variety Of The Mineral Species Pyrope Almandine Garnet)
Browse mineral (specifically, a variety of the mineral species pyrope almandine garnet) specimens identified by the Rock Identifier community.
Learn about Mineral (Specifically, A Variety Of The Mineral Species Pyrope Almandine Garnet) in the encyclopedia
View all →
Rose Quartz
Silicon Dioxide with traces of Titanium, Iron, or Manganese (SiO2)
mineral
Fossil bone, possibly a large mammal long-bone fragment
Fossilized cortical bone; taxon indeterminate from the photograph
fossil
Labradorite (Feldspar)
Labradorite: (Ca,Na)(Al,Si)4O8
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Orange Quartz with Hematite inclusions
Quartz (SiO2) with Hematite (Fe2O3) inclusions
Mineral
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Granite
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
igneous
Selenite
Gypsum (CaSO4·2H2O), specifically the crystalline variety Selenite
Mineral
Chalcedony (Agate and Carnelian varieties)
Silicon Dioxide (SiO2)
mineral
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Amethyst (Chevron or Banded variety)
Silicon Dioxide with Iron impurities (SiO2)
mineral
Limonite (Ironstone)
Limonite (FeOO·nH2O)
mineral
Rough Green Beryl (Emerald variety)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Arfvedsonite with Garnet
Na3(Fe2+,Mg)4Fe3+Si8O22(OH)2
igneous
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Wollastonite
Calcium Inosilicate, CaSiO3
mineral
Green Jasper
Jasper (variety of Microcrystalline Quartz, SiO2)
sedimentary
Ocean Jasper
Silicon Dioxide (SiO2) with various inclusions
Mineral (Variety of Quartz)
Limonite Nodules / Goethite
Hydrated Iron Oxide-Hydroxide (FeO(OH)·nH2O / Fe2O3·nH2O)
mineral
Chert (Flint variety)
Chert (SiO2)
sedimentary
Pegmatitic granite (likely feldspar–quartz–mica rock)
Granitic pegmatite; chiefly K-feldspar and quartz, with mica and iron-oxide staining
igneous
Granite
Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Limonite (Ironstone)
Limonite (FeO(OH)·nH2O)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Botryoidal quartz (likely chalcedony or druzy quartz)
Silicon dioxide, SiO₂; microcrystalline quartz (chalcedony) with possible drusy quartz coating
mineral
Garnierite in Matrix
Nickel-bearing Magnesium Silicates (Garnierite)
mineral
Schist (Garnet-Mica Schist)
Garnet-Mica Schist (X-Y)3Z2(SiO4)3
metamorphic
Banded Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
mineral
Schist (Diamond Drill Core)
Mica Schist
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled ocean jasper (orbicular/chalcedony-rich jasper)
Microcrystalline quartz, SiO₂, with iron oxides and variable volcanic inclusions
mineral
Polished orbicular jasper (likely ocean jasper)
Silicified microcrystalline quartz/chalcedony with iron-oxide-rich orbicules; commonly called Ocean Jasper
mineral
Biotite Schist
Schist (Biotite-dominated)
metamorphic
Limonite (Ochreous)
FeO(OH)·nH2O (Hydrated Iron Oxide)
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, or Chrysotile)
metamorphic
Muscovite mica
Muscovite, KAl₂(AlSi₃O₁₀)(OH)₂
mineral
Agate (specifically Botswana or Lake Superior style chalcedony)
Silicon Dioxide (SiO2)
mineral