Quartz
Silicon Dioxide (SiO2)
Category
Browse metamorphic, likely sedimentary with quartz veins specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartzite (or Iron-Stained Quartz Pebble)
Silicon Dioxide (SiO2) with Ferric Oxide inclusions
Included Quartz Beads (likely Phantom Quartz or Garden Quartz)
Quartz (SiO2) with various mineral inclusions
Quartz
Silicon Dioxide (SiO2)
Quartz with Iron Oxide
SiO2
Quartz (Druzy)
Silicon Dioxide (SiO2)
Quartz (Tumbled/Water-worn)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide with inclusions (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon dioxide (SiO2)
River Pebbles (Mixed Lithology)
Conglomerate clasts (Silica-rich and Metamorphic assemblages)
Quartz crystal
Quartz (silicon dioxide, SiO₂), possibly milky quartz
Quartz
Silicon dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz-rich limestone or calcitic marble
Calcite (CaCO₃), possibly with quartz (SiO₂)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Gold Nugget
Native Gold (Au)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
River Stones (Quartzite and Sandstone)
Quartzite / Sedimentary Rock (SiO2 dominant)
Clear Quartz (Cut/Faceted Gemstone)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pink Quartz / Rose Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Quartz Druze (Crystalline Quartz)
Silicon Dioxide (SiO2)
Quartz Crystal Rock
Silicon Dioxide (SiO2)
Tumbled brown quartz/chalcedony (probable)
Quartz, SiO₂; possibly brown chalcedony or jasper
Milky Quartz with Mineral Inclusions
Silicon Dioxide (SiO2)
Jasper-bearing Quartzite River Cobble
Tectonized Quartzite with Iron-Oxide (Hematite/Limonite) Veining
Likely tumbled quartz-rich pebble
Quartz (SiO₂), possibly a weathered quartzite or chalcedony pebble
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite (likely)
Iron disulfide, FeS₂; commonly called fool’s gold
Quartz (Smoky/Clear variety)
Silicon Dioxide (SiO2)
Gneiss with Quartz Vein
Metamorphic Gneiss