Chert (Jasper variety)
Cryptocrystalline Quartz (SiO2)
Category
Browse non geological specimens identified by the Rock Identifier community.
Chert (Jasper variety)
Cryptocrystalline Quartz (SiO2)
Quartz (Crystal Cluster)
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
White Quartzite
Quartzite (primarily SiO2 - Silicon Dioxide)
Jasper
Silicon dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Silver (Sterling Silver Jewelry)
Argentum (Ag) mixed with Copper (Cu)
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Sandstone (Quartz-rich)
Arenite (SiO2 based)
Charoite
Charoite (Hydrated silicate of potassium, sodium, calcium, barium and strontium): (K,Sr,Ba)(Na,Ca)2[Si4O10](OH,f)·H2O
Chert / Jasper
Microcrystalline Quartz (SiO2)
Red Jasper (Mahogany Obsidian variant similarity)
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert (with Limestone matrix)
Microcrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
Schist (Micaceous Schist)
Micaceous schist (Mainly Muscovite/Biotite mixed with Quartz)
Granite (Fine-grained)
Phaneritic Felsic Igneous Rock
Moss Agate
Silicon Dioxide with inclusions (SiO2)
Basalt
Extrusive mafic igneous rock
Malachite
Copper Carbonate Hydroxide [Cu2CO3(OH)2]
Quartzite
Quartzite (primarily SiO2)
Chert (Chalcedony/Agate)
Microcrystalline Quartz (SiO2)
Chalcedony (River Stone)
Microcrystalline Quartz (SiO2)
Red Jasper
Jasper (SiO2 with Fe2O3 inclusions)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Rhodonite in Quartz Matrix
Rhodonite (Manganese Iron Magnesium Calcium Silicate - Mn,Fe,Mg,Ca)SiO3
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Amethyst (as part of a multi-stone bracelet)
Silicon Dioxide (SiO2) with iron impurities
Quartz with Iron Staining
Silicon Dioxide (SiO2) with Hematite inclusions
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Orange Calcite (Carved as a Horned Skull)
Calcium Carbonate (CaCO3)
Chert (Nodule)
Silicon Dioxide (SiO2)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Quartz (Chert/Chalcedony Variety)
Silicon Dioxide (SiO2)
Brecciated Chert
Brecciated Chert (Microcrystalline Quartz, SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Moonstone
Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8
Travertine
Calcareous Tufa (CaCO3)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Chalk (Calcitic)
Calcium Carbonate (CaCO3) - Biogenic Sedimentary Rock