Staurolite (Fairy Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Category
Amorphous Solid
Browse amorphous solid specimens identified by the Rock Identifier community.
Note: Item is not a geological specimen
Guitar Components (Steel, Nickel, Plastic, Wood)
Synthetic/Consumer Product
Scoria (Lava Rock)
Extrusive Igneous Scoria (Vesicular Basalt)
igneous
Porphyritic Basalt (River Rock)
Porphyritic Basalt
igneous
Wonderstone
Rhyolite (Silicon Dioxide with Iron Oxide impurities)
igneous
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2)
sedimentary
Pumice
Highly vesicular volcanic glass (unnamed scientific variant: Rhyolitic/Andesitic Pumice)
igneous
Granite Pebble
Intrusive Felsic Igneous Rock (primarily SiO2 with Al2O3, K2O, Na2O)
igneous
Dalmatian Stone (often called Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite (formerly believed to be Jasper)
igneous
Scoria (Vesicular Basalt)
Scoria (Extrusive Igneous Rock)
igneous
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Basalt with Plagioclase Phenocrysts
Porphyritic Basalt
igneous
Flower Agate
Chalcedony (SiO2) with Scolecite/Opaque inclusions
mineral
Picture Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Dalmatian Jasper (Dalmatian Stone)
Perthitic feldspar with Arfvedsonite inclusions
igneous
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
sedimentary
Zebra Jasper (Zebra Stone)
Tumbled Silicon Dioxide (SiO2) with impurities
sedimentary
Ocean Jasper Mushroom
Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)
mineral
Chevron Amethyst
SiO2 (Quartz with Manganese/Iron impurities)
mineral
Basalt with Scoria/Vesicular Texture
Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
igneous
Vesicular Basalt (Lava Rock)
Aphanitic Mafic Igneous Rock
igneous
Orca Agate
Chalcedony (SiO2) with various inclusions
mineral
Lava Rock (Scoria)
Scoria (highly vesicular basaltic rock)
igneous
Pumice
Vesicular volcanic glass (primarily Alumino-silicates)
igneous
Granite Pebble
Granite (Phaneritic Quartz-Feldspar Rock)
igneous
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
sedimentary
Pumice
Pumice (Vesicular Rhyolite/Andesite)
igneous
Vesicular Basalt
Vesicular Basalt (Aphanitic Mafic Igneous Rock)
igneous
Jasper (Green/Yellow Moss Jasper)
Silicon Dioxide (SiO2)
mineral
Scoria (Lava Rock)
Vesicular Basalt / Scoria
Igneous
Pumice
Vesicular volcanic glass (primarily SiO2)
igneous
Montana Moss Agate
Chalcedony (SiO2) with Manganese/Iron oxide inclusions
sedimentary
![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
Scoria (Red Lava Rock)
Scoria (Vesicular basaltic rock)
Igneous
Scoria (Vesicular Basalt)
Scoria (Extrusive Mafic Igneous Rock)
igneous
Scoria (Lava Rock)
Scoria (highly vesicular extrusive igneous rock)
igneous
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Granite
Phaneritic plutonic rock (composed of Quartz, Feldspar, and Mica/Amphibole)
igneous
Vesicular Basalt
Vesicular Basalt (Aphanitic Mafic Rock)
igneous
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary