Jasper (Green/Yellow Moss Jasper)
Silicon Dioxide (SiO2)
mineral
Category
Amorphous Solid
Browse amorphous solid specimens identified by the Rock Identifier community.
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Pumice
Vesicular volcanic glass (primarily SiO2)
igneous
![Granite with Quartz Vein (Phaneritic Felsic Igneous Rock (composed of Quartz [SiO2], Feldspar, and Mica)) — igneous](https://media.rockidentification.com/50ebadd6-ed66-4e73-abce-e70c662464c5-thumbnail.jpg)
Granite with Quartz Vein
Phaneritic Felsic Igneous Rock (composed of Quartz [SiO2], Feldspar, and Mica)
igneous
Sagenitic Agate (with Goethite/Rutile inclusions)
Silicon Dioxide (SiO2) with hydrous ferric oxide inclusions
mineral
Montana Moss Agate
Chalcedony (SiO2) with Manganese/Iron oxide inclusions
sedimentary
Scoria (Red Lava Rock)
Scoria (Vesicular basaltic rock)
Igneous
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Scoria (Lava Rock)
Scoria (highly vesicular extrusive igneous rock)
igneous
Scoria (Vesicular Basalt)
Scoria (Extrusive Mafic Igneous Rock)
igneous
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
sedimentary
Jasper (Willow Creek/Desert style)
Silicon Dioxide (SiO2) with iron and clay impurities
sedimentary
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Vesicular Basalt
Vesicular Basalt (Aphanitic Mafic Rock)
igneous
Dalmatian Stone
Peralkaline Feldsphathic Igneous Rock
igneous
Granite
Phaneritic plutonic rock (composed of Quartz, Feldspar, and Mica/Amphibole)
igneous
Quartz-veined Basalt
Amygdaloidal or Porphyritic Basalt with Silicon Dioxide (SiO2) vein
igneous
Moonstone
Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8
mineral
Staurolite (Fairy Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Tumbled zebra stone, likely zebra marble or banded calcite
Zebra marble (recrystallized calcite, CaCO₃), possibly black-and-white banded calcite
metamorphic
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Combined Minerals / Metaphysical stones
Polished red jasper pebble
Jasper, microcrystalline quartz (SiO₂) colored mainly by hematite/goethite
metamorphic
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (Quartz variety), SiO2
mineral
Mixed Rock and Mineral Collection
Mixed Assemblage (includes Quartz, Jasper, Feldspar, and Turquoise-colored stones)
mineral
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Citrine
Silicon Dioxide (SiO₂)
mineral
Banded Calcite (often sold as 'Onyx')
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Red Jasper Concretion
Cryptocrystalline Quartz (SiO2)
sedimentary
Basalt (Beach Pebble)
Extrusive mafic igneous rock
igneous
Vein-filled Basalt or Diabase Pebble
Mafic igneous rock with quartz/calcite veins
igneous
Basalt (Vesicular)
Extrusive igneous rock with vesicular texture
igneous
Jasper Mushroom Carving
Silicon Dioxide (Microcrystalline Quartz, SiO2)
mineral
Granite (Weathered)
Felsic Plutonic Rock (primarily Quartz, Feldspar, and Mica)
igneous
Granite Pebble
Granite (Phaneritic Igneous Rock)
igneous
Dalmatian Stone (often called Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite (formerly believed to be Jasper)
igneous
Vesicular Basalt
Extrusive Mafic Igneous Rock with Vesicular Texture
igneous
Pumice
Highly vesicular volcanic glass (unnamed scientific variant: Rhyolitic/Andesitic Pumice)
igneous
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
mineral
Scoria (Vesicular Basalt)
Scoria (Extrusive Igneous Rock)
igneous
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary