Granite Pebble
Granite (Phaneritic intrusive igneous rock)
Category
Browse mineral variant specimens identified by the Rock Identifier community.
Granite Pebble
Granite (Phaneritic intrusive igneous rock)
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Botryoidal Chalcedony (Desert Rose / Agate)
Silicon Dioxide (SiO₂)
Tree Agate
Silicon Dioxide (SiO2) with Chlorite inclusions
Yellow Aventurine (Yellow Quartz)
Silicon Dioxide (SiO2) with inclusions of Muscovite or Mica
Larimar
Pectolite (NaCa2Si3O8(OH))
Desert Rose
Gypsum (CaSO4·2H2O) or Barite (BaSO4) inclusions in sand
Dalmatian Jasper
Microcrystalline Quartz with Arfvedsonite and Tourmaline inclusions
Carnelian
Carnelian (SiO2 variant)
Amazonite
Microcline (KAlSi3O8 variant)
Amazonite
Microcline (KAlSi3O8 variant)
Amazonite
Microcline (KAlSi3O8 variant)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Labradorite
(Ca,Na)(Al,Si)4O8
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Quartz Pebble
Silicon Dioxide (SiO2)
Opalite
Synthetic glass / Opalized glass
Amazonite
K(AlSi3O8) - Microcline variant
Pink Chalcedony
Silicon Dioxide (SiO2)
Potassium Feldspar
K-Feldspar (KAlSi3O8)
Amazonite
Amazonite (Microcline variant: KAlSi3O8)
Amazonite
K(AlSi3O8) - Microcline variant
Potassium Feldspar
Orthoclase (KAlSi3O8)
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
Quartz
Silicon Dioxide (SiO2)
Granite
Granite (Phaneritic igneous rock)
Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
Vesicular Basalt / Scoria
Basalt (vesicular variant)
Asphalt (Bituminous Concrete)
Composite material (bitumen binder with mineral aggregate)
Labradorite
(Ca, Na)(Al, Si)4O8
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Sandstone and Quartzite Specimens
SiO2 with varying mineral/clastic inclusions
Banded Iron Formation (BIF)
Banded Iron Formation
Agate (Turtle Carving)
Agate (Cryptocrystalline variety of Silica, SiO2)
Chert (or possibly Flint)
Chert (variant: Flint)
Coquina
Coquina (Limestone variant)
Chalcedony (Dyed Agate and Citrine-style Quartz)
Silicon Dioxide (SiO2)
Grey Jasper (Tumbled Quartz variant)
Jasper (Silicon Dioxide, SiO2)
Sheen Obsidian
Volcanic glass (SiO2 with inclusions)
Quartz (Clear/Smoky Geode fragment)
Silicon Dioxide (SiO2)
Sandstone (Greywacke)
Arenite / Greywacke Sandstone
Green Aventurine
Quartz variant (SiO2) with Fuchsite inclusions