Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Category
Igneous Or Mineral
Browse igneous or mineral specimens identified by the Rock Identifier community.
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Granite
Phaneritic Felsic Igneous Rock
igneous
Milky Quartz
Quartz (SiO2)
mineral
Granite
Intrusive Igneous Rock
igneous
Vesicular Basalt or Porphyritic Rhyolite
Extrusive Igneous Rock
igneous
Granite
Intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Serafina (Serafinite / Clinochlore)
Clinochlore (Mg5Al)(AlSi3O10)(OH)8
mineral
Foliated metamorphic rock, likely mica schist
Mica schist, mainly quartz–feldspar–mica assemblage
metamorphic
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Porphyritic Igneous Rock with Iron Oxide Weathering
Weathered Porphyry (containing Quartz, Feldspar, Amphibole/Biotite, and Hematite/Limonite)
igneous
Gabbro
Gabbro
igneous
Granite
Intrusive Igneous Rock
igneous
Pegmatite
Igneous Pegmatite
igneous
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Agate
Chalcedony (SiO2)
mineral
Granite Pebble
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite Pebble
Intrusive Igneous Rock
igneous
Tumbled Mixed Gemstones and Rocks
Various mineral species including quartz (SiO2) and silicate minerals
mineral
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Amygdaloidal Basalt with Agate/Zeolite Amygdules
Basalt (extrusive igneous rock) containing secondary mineral fillings
igneous
Granite
Intrusive Igneous Rock
igneous
Graphite
Graphite (Carbon, C)
mineral
Granite Cobble
Granite
igneous
Blue Apatite
Calcium Fluorophosphate (Ca5(PO4)3F)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic Intrusive Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)
mineral
Quartz Vein (Iron-stained)
Silicon Dioxide (SiO2) with limonite/hematite staining
mineral
Granite Pebble
Intrusive Igneous Rock
igneous
Unidentified metallic-looking mineral fragment
Indeterminate; possible galena, magnetite, or metal-rich sulfide/ore fragment
mineral
Unidentified small mineral fragments
Likely quartz- or feldspar-rich material; species cannot be determined reliably from the image
mineral
Granite
Phaneritic Felsic Igneous Rock
igneous
Quartz (Raw and Water-worn)
Silicon Dioxide (SiO2)
mineral
Garnetiferous Pegmatite
Pegmatite with Almandine Garnet and Muscovite
igneous
Granite
Felsic intrusive igneous rock
igneous
Gold Mineral
Native Gold (Au)
mineral