Sandstone
Arenite (SiO2 dominant)
sedimentary
Category
Not A Rock Or Mineral (Anthropogenic Material)
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Sandstone (lithic/quartz variant)
Clastic sedimentary rock (SiO2 predominant)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (lithic wacke/conglomerate mix)
Clastic Sedimentary Rock (SiO2 with lithic fragments)
sedimentary
Sandstone (Tumbled / Rounded)
Sedimentary Rock (Quartz arenite)
sedimentary
Sandstone
Sedimentary Rock (Quartz Sandstone)
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Breciated Limestone with Calcite Veins
Sedimentary Breccia (CaCO3)
sedimentary
Honey calcite (likely rough cleavage fragment)
Calcite, calcium carbonate (CaCO₃)
mineral
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide Fe2O3 cement)
sedimentary
Sandstone
Sandstone (composed predominantly of SiO2)
sedimentary
Serpentinite (often called Jade or Nephrite substitute)
Serpentinite (composed primarily of Antigorite, Lizardite, or Chrysotile)
metamorphic
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone
Arenite (Siliclastic sedimentary rock)
sedimentary
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Small pale rock fragment
Indeterminate; possibly quartz, calcite, or a weathered feldspar-rich fragment
mineral
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Sandstone (Banded)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Leopard jasper (orbicular jasper)
Silicified volcanic rock, chiefly microcrystalline quartz/chalcedony (SiO₂) with feldspar and iron-oxide inclusions
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz-rich chalcedony (likely silicified rock)
Microcrystalline quartz, SiO₂; possibly silicified limestone or jasper
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic
Fossil bivalve shell
Likely an extinct or modern-like ribbed cockle/scallop; exact genus requires locality and diagnostic hinge features
fossil
Sandstone
Arenite (SiO2 dominant)
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Sandstone (Banded)
Clastic Sedimentary Rock: Arenite
sedimentary
Possible fossilized shell or coral fragment
Indeterminate biogenic carbonate, likely calcite (CaCO₃)
fossil
Sandstone
Arenite
sedimentary
Fire Opal (in matrix)
Hydrated Silica (SiO2·nH2O)
Mineraloid
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Iron Slag
Ferrous Slag (Industrial Byproduct)
mineraloid (anthropogenic byproduct)
Sandstone
Quartzose Sandstone (Sedimentary Rock)
sedimentary
Banded gneiss pebble
Biotite–quartz–feldspar gneiss (composition variable)
metamorphic