Basaltic Lava (Scoria)
Extrusive Igneous Rock / Vesicular Basalt
igneous
Category
Amorphous Solid
Browse amorphous solid specimens identified by the Rock Identifier community.
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Vesicular Basalt River Rock
Vesicular Basalt
igneous
Red Jasper
Silicon Dioxide (SiO2) with hematite inclusions
sedimentary
Lava Rock (Scoria)
Scoria (Mafic volcanic rock)
igneous
Orthoceras Fossil
Orthoceras regulare
fossil
Jasper (Picture Jasper)
Quartz (Silicon Dioxide) - SiO2 with impurities
sedimentary
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Porphyritic Basalt with K-Feldspar Phenocryst
Porphyritic Basic Igneous Rock (with Potassium Feldspar)
igneous
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Vesicular Basalt
Basalt (extrusive volcanic rock)
igneous
Dalmatian Stone
Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)
igneous
Vesicular Basalt
Basalt
igneous
Red Jasper (Skull Carving)
Jasper, a cryptocrystalline variety of Quartz (SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Vesicular Basalt
Mafic Volcanic Rock (Basalt)
igneous
Scoria (Lava Rock)
Aphanitic vesicular mafic igneous rock
igneous
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
mineral
Jasper with Dendritic Inclusions
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
K2 Jasper (K2 Granite)
Azurite in Granite (Al2Cu3(CO3)2(OH)2 in NaAlSi3O8)
igneous
Basalt with Vesicles
Aphanitic Mafic Volcanic Rock (Basalt)
igneous
Vesicular Basalt
Basalt (SiO2 range 45-52%) with vesicular texture
igneous
Rose Quartz
Rose Quartz (SiO2 with traces of Titanium, Manganese, or Iron)
mineral
Vesicular Basalt
Extrusive mafic igneous rock (primarily Plagioclase feldspar and Pyroxene)
igneous
Scoria
Extrusive Igneous Rock (Basaltic/Andesitic Composition)
igneous
Pumice
Pumice (Vesicular volcanic glass)
igneous
Leopard Skin Jasper
Silicon Dioxide (SiO2) with various inclusions
sedimentary
Dalmatian Jasper
Dalmatian Stone (a porphyritic peralkaline igneous rock)
igneous
Vesicular Basalt (River Rock)
Afanitic Vesicular Basalt
igneous
Quartz (Milky/Bull Quartz)
Silicon Dioxide (SiO2)
mineral
Tree Agate
Dendritic Chalcedony (SiO2)
sedimentary
Script Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Vesicular Basalt
Extrusive Mafic Igneous Rock (composed of Plagioclase feldspar, Pyroxene, and Olivine)
igneous
Yellow Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Amygdaloidal Basalt
Amygdaloidal Basalt
igneous
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Quartz (Iron-stained)
Silicon Dioxide (SiO2) with Iron Oxide impurities
mineral
Scoria
Vesicular Basalt / Scoria (Mafic volcanic rock)
igneous
Vesicular Rhyolite
Extrusive igneous rock (high-silica rhyolite)
igneous
Pumice
Pumice (Vitreous pyroclastic rock)
igneous
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
Mineral