Puddingstone (Jasper Conglomerate)
Jasper Conglomerate (SiO2 matrix with Fe2O3 inclusions)
sedimentary
Category
Sedimentary (Man Made Conglomerate)
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
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Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Jasper Conglomerate (Puddingstone)
Jasper Conglomerate (Siliceous Sedimentary Rock)
sedimentary
Jasper Conglomerate (specifically Puddingstone)
Jasper Conglomerate (Siliceous sedimentary rock)
sedimentary
Quartz Breccia
Brecciated Quartz Clasts in Siliceous/Sandy Matrix
sedimentary
Opalite (a synthetic glass, often confused with Opal)
Silicon dioxide glass (SiO2nH2O, for natural opal)
Synthetic (glass)
Tumbled polymict breccia (probable quartz-rich breccia)
Clastic breccia composed mainly of quartz, feldspar, and iron-oxide-stained rock fragments
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Chert Breccia
Brecciated Chert (Sedimentary Rock)
sedimentary
Mixed river gravel (alluvial conglomeratic sediment)
Polymictic alluvium; composition includes quartz, feldspar, chert, granite, basalt, and metamorphic rock fragments
sedimentary
Terracotta (Man-made ceramic brick fragment)
Baked clay / High-iron ceramic (Silicate-based ceramic)
Anthropogenic material (Man-made sedimentary mimic)
Polygenetic Conglomerate (Puddingstone)
Conglomerate (SiO2 matrix with mixed clasts)
sedimentary
Breccia
Clastic Breccia (SiO2/CaCO3 dominated)
sedimentary
Polished blue calcite sphere (tentative identification)
Calcite, CaCO₃; blue color generally results from trace impurities or inclusions
mineral
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Anthropogenic (Man-made artifact)
Sedimentary Breccia
Clastic Breccia (CaCO3/SiO2 matrix)
sedimentary
Chert Conglomerate (or Breccia)
Sedimentary Clastic Rock (variety: Ferruginous Chert Breccia)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Weathered iron-rich sandstone or conglomeratic sedimentary cobble
Ferruginous sandstone, possibly polymictic conglomerate
sedimentary
Chert Breccia
Brecciated Chert (SiO2)
sedimentary
Chalcedony Nodule in Matrix
Silicon Dioxide (SiO2)
mineral
Terrazzo (with Marble and Granite fragments)
Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates
sedimentary (man-made composite)
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Jasper and Quartzite Breccia
Silicified sedimentary breccia
sedimentary
Chert Breccia
Brecciated Microcrystalline Quartz (SiO2)
sedimentary
Green Sea Glass
Amorphous Silica (man-made glass), SiO2 + additive metal oxides
mineraloid / anthropogenic (man-made origin)
Goldstone (aventurine glass)
Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)
mineral
Puddingstone (Quartzite Conglomerate with Jasper inclusions)
Metaconglomerate (Silicon Dioxide, SiO2)
sedimentary
Brecciated stone pebble
Breccia
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Mineraloid (synthetic)
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
not a natural rock
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Mineraloid/Synthetic Material
Man-made Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating/dye
mineral
White Quartz Pebbles
Quartz (Silicon Dioxide, SiO2)
Mineral
Milky Quartz in Conglomerate Matrix
Silicon Dioxide (SiO2) within Clastic Sedimentary Rock
sedimentary
Brecciated quartz-rich rock, possibly silicified breccia
Silica-rich breccia; chiefly microcrystalline quartz (SiO₂), with possible calcite and iron-oxide staining
sedimentary
Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
mineraloid
Slag Glass (Cullet)
Amorphous Silica (man-made), primarily SiO2 with trace metal oxides
Mineraloid / Synthetic Glass
Cardstock (Paper)
Cellulose (C6H10O5)n
sedimentary (man-made)
Quartz Pebble (Quartzite Pebble)
Silicon Dioxide (SiO2)
sedimentary