Rose Quartz
Silicon Dioxide (SiO2)
mineral
Category
Mineral, Specifically A Cryptocrystalline Quartz Variety
Browse mineral, specifically a cryptocrystalline quartz variety specimens identified by the Rock Identifier community.
Rose Quartz (Aura Quartz)
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Black Chert
Chert (microcrystalline quartz)
Mineral
Quartz (River Pebble)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Smoky Quartz
Silicon Dioxide (SiO2) with trace aluminum and irradiation
mineral
Pegmatite with Schorl (Black Tourmaline) and Mica
Pegmatite (complex association of NaAlSi3O8, NaFe3Al6(BO3)3Si6O18(OH)4, and KAl2(AlSi3O10)(OH,F)2)
igneous
Labradorite (likely Black Labradorite or Larvikite)
Labradorite (Na,Ca)(Al,Si)4O8. If a rock, it is typically anorthosite, gabbro, or norite, or a variety of syenite called Larvikite if it is specifically from Larvik, Norway.
Mineral/Igneous Rock
Yellow Quartz (Citrine/Lemon Quartz)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Unakite
Unakite (Epidotized Granite)
metamorphic
Sandstone (Stream-rounded)
Arenite (SiO2 based)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Chert (containing Flint and Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Pink Granite
Phaneritic Plutonic Igneous Rock (composed of K-feldspar, Quartz, and Mica)
igneous
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
mineral
Ametrine
SiO2 (silicon dioxide)
Mineral
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Amethyst (Quartz Variety)
Amethyst (Silicon Dioxide - SiO2 with ferric iron impurities)
mineral
Chert (specifically Flint or Jasper variant)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
Mineral
Pink Granite (River Pebble)
Phaneritic Felsic Igneous Rock
igneous
Amethyst (variety of Quartz)
SiO2 (Silicon Dioxide)
Mineral
Black Onyx
Silicon Dioxide (SiO2) with cryptocrystalline structure
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Fuchsite in Quartz (Aventurine Quartz)
K(Al,Cr)2(AlSi3O10)(OH)2 (Fuchsite) + SiO2 (Quartz)
metamorphic
Yellow Quartz (Citrine or Yellow Chalcedony)
Silicon Dioxide (SiO2)
mineral
Grey Chalcedony (Tumbled Moon)
Microcrystalline Quartz (SiO2)
mineral
Chert (Nodule / Geode fragment)
Microcrystalline Quartz (SiO2)
sedimentary
Citrine
SiO2 (Silicon Dioxide)
Mineral
Quartz
Silicon Dioxide (SiO2)
Mineral
Chlorastrolite (Isle Royale Greenstone)
Chlorastrolite (Pumpellyite-(Mg,Fe2+): Ca2MgAl2(Si2O7)(SiO4)(OH)2∙H2O)
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Agate Nodule / Weathered Chert
SiO2 (Silicon Dioxide - Microcrystalline Quartz)
Sedimentary / Mineral
Jasper with Chalcedony
Silicon Dioxide (SiO2)
mineral
Chert (specifically Flint or Jasper variant)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
sedimentary
Orange Calcite (Banded Calcite)
Calcium Carbonate (CaCO3)
mineral
Granite
Plutonic felsic rock (Quartz, Feldspar, Mica)
igneous
Jasper
Silicon dioxide (SiO2) with iron oxide and clay inclusions
sedimentary