Granite
Granite (a felsic intrusive igneous rock)
Category
Browse this is not a rock or mineral specimens identified by the Rock Identifier community.
Granite
Granite (a felsic intrusive igneous rock)
Gneiss (Banded Gneiss)
Gneiss
Bauxite
Bauxite (Al(OH)3 mixed with Fe2O3 and clay minerals)
Granite
Phaneritic Felsic Igneous Rock
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Diorite
Diorite (plutonic igneous rock)
Sandstone (with Lichen)
Arenite (composed primarily of SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (likely Arkose or Quartz Sandstone)
Arenite (SiO2 + varied clasts)
Rose Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Moss Agate
Silicon Dioxide (SiO2) with inclusions
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
Agate Geode / Nodular Chalcedony
Silicon Dioxide (SiO2) with impurities
Tiger's Eye (Rough)
Pseudomorph of Quartz after Crocidolite (SiO2)
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 predominantly)
Sandstone (Pebble)
Arenite (primarily SiO2)
Jasper
Silicon dioxide (SiO2)
Jasper (Yellow Jasper)
Silicon Dioxide (SiO2) with iron inclusions
Granite
Granite (Mainly Quartz, Feldspar, and Mica/Amphibole)
Sandstone (with Lichen)
Arenite (primarily SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt containing Zeolite or Quartz (SiO2/Silicates)
Banded Agate (specifically Carnelian Agate)
Silicon dioxide (SiO2) - Chalcedony variety
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Amphibolite (specifically Hornblende Schist/Gneiss)
Amphibole-rich Metamorphic Rock
Sandstone
Arenite
Sandstone (Ferruginous)
Arenite (complex silicate composition with iron oxides)
Pebble or Cobble (likely composed of sandstone or conglomerate)
Clastic Sedimentary Rock (specific name like sandstone, conglomerate, or breccia would require microscopic analysis of clast size and angularity)
Rough Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Basalt with Plagioclase Microphenocrysts
Amygdaloidal or Porphyritic Basalt
Dalmation Stone (often called Dalmatian Jasper)
Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite
Basalt with Epidote Veins
Mafic Igneous Rock (Basalt)
Granite
Granite (Phaneritic igneous rock)