Sandstone
Sandstone (SiO2-dominated clastic rock)
sedimentary
Category
Man Made Material
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Sandstone
Sedimentary Rock (Quartz/Feldspar grains cemented together)
sedimentary
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Moss Agate
Chalcedony (Silicon Dioxide - SiO2) with inclusions
Mineral
Eclogite
Eclogite (composed primarily of Omphacite and Pyrope Garnet)
metamorphic
Jasper (Green)
Silicon dioxide (SiO2)
Mineral/Sedimentary
Olivine in Basalt (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4 (Mineral) / Scoriaceous Basalt (Host Rock)
igneous
Engineer Quartz/Quartzite
SiO2 (Silicon Dioxide with binders)
Sedimentary or metamorphic-derived
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Rough Diamond
Diamond (C)
mineral
Diamond (or Diamond Simulant)
Carbon (C) - Native Element
mineral
Sandstone
Clastic sedimentary rock (quartz arenite)
sedimentary
Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Sandstone
Sedimentary Clastic Rock (Quartz arenite)
sedimentary
Sandstone
Clastic sedimentary rock (Quartz arenite / Arkose)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Sandstone (SiO2-rich detrital sedimentary rock)
sedimentary
Limestone ( weathered ) / Chert Nodular Rock
Sedimentary rock (primarily Calcium Carbonate, CaCO3, with Microcrystalline Quartz, SiO2)
sedimentary
Shale
Mudrock / Fissile Shale
sedimentary
Sandstone
Sandstone (clastic sedimentary rock composite)
sedimentary
Red Sandstone
Sandstone (Quartz Arenite with Iron Oxide)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Arenite
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Sandstone
Arenite (SiO2 principal component)
sedimentary
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 primarily)
sedimentary
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Quartzite Cobble
Quartzite (SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Sandstone ( преимущественно SiO2 )
sedimentary
Sandstone Pebble
Arenite (SiO2 complex)
sedimentary
Sandstone
Arenite (compositionally various, primarily SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzose)
Arenite
sedimentary
Sandstone (Red Sandstone)
Arenite (SiO2 based with Fe2O3 staining)
sedimentary