Red Sandstone
Arenite (primarily SiO2 with hematite/iron oxide coating)
sedimentary
Category
Not A Rock Or Mineral
Browse not a rock or mineral specimens identified by the Rock Identifier community.
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Rose or Clear variety)
Silicon Dioxide (SiO2)
mineral
Nephrite Jade
Nephrite
Mineral/Rock
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Lapis Lazuli
Lazurite-rich metamorphic rock (approx. Na6Ca2(Al6Si6O24)(S,SO4,Cl)1,2)
metamorphic
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Sunstone
Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8
mineral
Quartz (specifically Citrine or Yellow Quartz)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz (Tumbled)
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (SiO2)
mineral
White Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Granite
igneous
Quartz (Gravel fragment)
Quartz (Silicon Dioxide, SiO2)
mineral
Red Sandstone
Arenite (primarily composed of SiO2 with Fe2O3 cement)
sedimentary
Halite (Rock Salt)
Halite (NaCl)
mineral
Chalcedony in Host Rock
Silicon Dioxide (SiO2)
mineral
Quartz Vein Rock
Silicon Dioxide (SiO2)
Mineral
Quartz (Rock Crystal)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Rock Crystal Quartz
Quartz (SiO₂)
Mineral
Emerald in Host Rock
Beryl (Be3Al2Si6O18) containing Chromium and/or Vanadium
mineral
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Granite
Granite (Felsic Plutonic Rock)
igneous
Diorite
Diorite (an intrusive igneous rock)
igneous
Diorite
Intermediate plutonic igneous rock
Igneous
Sandstone
Arenite (primarily composed of SiO2)
sedimentary
Septarian Nodule
Septarian concretion (Complex mixture of Siderite/Limestone, Calcite, and Aragonite)
sedimentary
Schist
Schist (primarily mica-schist)
metamorphic
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Halite (Rock Salt)
Halite; NaCl (Sodium Chloride)
Mineral
Sulfur (in host rock)
Native Sulfur (S8)
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Quartz Pebble (with probable inclusions or staining)
Quartz (Silicon Dioxide - SiO2)
mineral