Quartz River Cobble
Silicon Dioxide (SiO2)
Category
Browse mineral (primary constituent) specimens identified by the Rock Identifier community.
Quartz River Cobble
Silicon Dioxide (SiO2)
Glauconite
(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Orthoclase Feldspar (Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
Quartz
Silicon dioxide (SiO2)
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Milky Quartz
Silicon Dioxide (SiO2)
Druzzy Quartz on Matrix
Silicon Dioxide (SiO2)
Calcite (Optical or Clear Calcite)
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Orange Calcite
Calcite (Calcium Carbonate - CaCO3)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Calcite
Calcium Carbonate (CaCO3)
Calcite
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Honey Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Milky Quartz with inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Potassium Feldspar
K-Feldspar (KAlSi3O8)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Plagioclase Feldspar
NaAlSi3O8 – CaAlSi2O8 (Sodium-Calcium Aluminum Silicates)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Yellow Calcite
Calcium Carbonate (CaCO3)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Columnar Calcite / Satin Spar
Calcite (Calcium Carbonate, CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Lapis Lazuli (polished cabochon/sphere)
Na8[Al6Si6O24]Sn with accessory minerals (Pyrite, Calcite)