Polished Mookaite Jasper
SiO2 (Silicon Dioxide with impurities)
sedimentary
Category
Igneous, Sedimentary, And Metamorphic Mix
Browse igneous, sedimentary, and metamorphic mix specimens identified by the Rock Identifier community.
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Conglomerate
Conglomerate (SiO2 matrix with various silicate clasts)
sedimentary
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
mineral
Quartz-rich river pebble, likely milky quartz
Milky quartz (SiO₂), possibly a quartzite or quartz-rich silicate pebble
mineral
Chert (Jasper/Agate mix)
Microcrystalline Quartz (SiO2)
sedimentary
Pumice (specifically a water-worn, weathered variety)
Vesicular volcanic glass
igneous
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
not a rock (anthropogenic material/technofossil)
Asphalt Chunk (with aggregate)
Bituminous concrete / Anthropogenic conglomerate
sedimentary (anthropogenic/man-made conglomerate)
Granite
Granite (composed primarily of Quartz SiO2, Alkali Feldspar (K,Na)AlSi3O8, and Plagioclase Feldspar)
igneous
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Banded Agate
Cryptocrystalline Quartz (SiO2)
mineral
Chert / Jasper
Cryptocrystalline Quartz (SiO2)
sedimentary
Graywacke with Quartz Veins
Argillaceous Sandstone (Graywacke)
sedimentary
Chert (Jasper variety)
Chert (SiO2)
sedimentary
Chalcedony (Agate/Jasper mix)
Cryptocrystalline Quartz (SiO2)
sedimentary
Tumbled dark stone, likely basalt
Basalt; fine-grained mafic rock composed mainly of plagioclase feldspar and pyroxene, commonly with olivine
igneous
Feldspar-rich granite or granitic gneiss with dark inclusion
Granite, likely quartz–feldspar–mica rock; dark area may be biotite-rich enclave or weathered mafic inclusion
igneous
Pumice
Pumice (a highly vesicular volcanic glass)
igneous
Likely quartz fragment
Quartz (silicon dioxide, SiO₂), possibly milky quartz or quartz-rich rock
mineral
Chalcedony (Agate/Jasper mix in host rock)
Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)
mineral
Tumbled brown pebble
Indeterminate; likely quartz-rich sandstone or chert
sedimentary
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
mineral
Asphalt (Road Aggregate)
Asphalt concrete / Bituminous mixture
anthropogenic sedimentary (technolith)
Asphalt Pavement (with aggregate)
Asphalt concrete
man-made composite
Basalt
Vesicular Basalt
igneous
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Chert (Jasper/Chalcedony mix)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Raw Chunk)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Chert (Common Opal/Quartz mix)
Microcrystalline Silicon Dioxide (SiO2)
sedimentary
Chert (Common Opal/Jasper mix)
Silicon Dioxide (SiO2) with impurities
sedimentary
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
sedimentary (artificial)
River Cobbles (Basalt, Quartzite, and Sandstone mix)
Fluvial detritus (primarily SiO2, Plagioclase, and Pyroxene mix)
Mixed: Igneous and Sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Chert (Jasper/Agate mix)
Microcrystalline Quartz (SiO2)
sedimentary
Schist with Biotite and Quartz
Biotite-Quartz Schist (Fe,Mg,Al silicate mix)
metamorphic
Small quartz-rich mineral fragment
Quartz (SiO₂), possibly milky or chalcedonic quartz
mineral
Jasper (Green)
Silicon dioxide (SiO2)
Mineral/Sedimentary
Mixed rock and mineral collection
Multiple specimens; visible pieces may include quartz, calcite, agate/chalcedony, jasper, and dyed or coated materials
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Magnetite
Magnetite (Fe3O4)
mineral