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