Chert (specifically Iron-stained or Jasperoid Chert)
Microcrystalline Quartz (SiO2)
Category
Browse mineral, specifically a variety of quartz specimens identified by the Rock Identifier community.
Chert (specifically Iron-stained or Jasperoid Chert)
Microcrystalline Quartz (SiO2)
Chert (specifically Black Chert or Flint)
Cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Common Chert)
Microcrystalline Quartz (SiO2)
Chert (specifically a Chert Nodule or Flint)
Cryptocrystalline Quartz (SiO2)
Chert (specifically Chalcedony or Flint variation)
Microcrystalline Quartz (SiO2)
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Muscovite Mica
Muscovite / KAl2(AlSi3O10)(OH)2
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
Chert / Jasper
Silicon Dioxide (SiO2)
Banded Agate
Sedimentary Cryptocrystalline Quartz (SiO2)
Blue Lace Agate (often dyed)
Silicon dioxide (SiO2) - variety of chalcedony
Yellow Quartz (Iron-Stained Quartz)
Silicon Dioxide (SiO2) with iron oxide inclusions
Granite
Granite (a plutonic igneous rock composed of quartz, feldspar, and mica)
Greywacke
Lithic wacke (variety of Sandstone)
Orbicular Jasper
Silicon Dioxide (SiO2), variety of Chalcedony
Granite
Granite (Felsic Plutonic Rock)
Tiger's Eye (Rough)
Pseudomorph of Quartz after Crocidolite (SiO2 with FeOOH inclusions)
Spinosaurus Tooth
Spinosaurus aegyptiacus (fossilized in Hydroxyapatite)
Red Jasper
Jasper (Silica with Iron Oxide inclusions), SiO2
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
White Jade / White Chalcedony
Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky or Rough Variety)
Silicon Dioxide (SiO2)
Pink Quartz / Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Rose Quartz
Silicon Dioxide (SiO2) containing trace amounts of titanium, iron, or manganese
Chalcedony (Agate/Quartz variety)
Cryptocrystalline Quartz (SiO2)
Purple Dyed Agate Geode (Banded Chalcedony)
Silicon Dioxide (SiO2) - variety: Agate
Orange Calcite
Calcium Carbonate (CaCO3)
Chert (Nodular Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Banded Onyx (Mexican Onyx / Travertine)
Calcite (CaCO3) - Banded Travertine
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Jasper (Iron-stained Quartz)
Silicon dioxide (SiO2) with iron oxide inclusions
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)