Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
gemstone
Category
Man Made Rock (Sedimentary Analogue)
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
Learn about Man Made Rock (Sedimentary Analogue) in the encyclopedia
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Sea Glass
Man-made vitreous material (silica-based glass)
mineral
Sea Glass
Man-made silicate glass (Amorphous silicon dioxide)
mineral
Goldstone (Brown/Gold)
Aventurine Glass (Man-made glass with Copper inclusions)
gemstone
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite (SiO2 based typically)
sedimentary
Opalite
Synthetic Opalised Glass
Mineral (Synthetic / Man-made)
Carborundum
Silicon Carbide (SiC)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Belemnoit (Fossil)
Belemnoidea (Order), Rostrum / Guard
sedimentary
Cullet (Slag Glass)
Amorphous Silica (Industrial byproduct)
mineraloid
Pink Cubic Zirconia (CZ)
Zirconium Dioxide (ZrO2)
mineral (synthetic)
Opalite
Synthetic glass (SiO2 + metal additions)
mineraloid
Chert
Silicon dioxide (SiO2)
Sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Chert (specifically Tan/Gray Chert)
Microcrystalline quartz (SiO2)
sedimentary
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Synthetic (not a rock or mineral)
Cobalt Glass Slug (Cullet)
Man-made Silicate Glass with Cobalt Oxide (CoO)
mineraloid
Sandstone
Arenite (variable SiO2 composition)
sedimentary
Sandstone (Quartz Arenite)
Sandstone (dominated by SiO2 quartz grains)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Chert (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Raw quartz crystal
Quartz (silicon dioxide, SiO₂), likely milky or included quartz
mineral
Chert Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Blue Goldstone
Synthetic Avanturine Glass (or Aventurine Glass)
Synthetic Glass
Sandstone (Water-worn Cobble)
Arenite (SiO2 with CaCO3 or Fe2O3 cement)
sedimentary
Sandstone
Sandstone (composed predominantly of Quartz, SiO2, with Feldspar and Clay minerals)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (likely Quartzose)
Clastic sedimentary rock (SiO2 primary)
sedimentary
Sea Glass
Amorphous silicon dioxide (SiO2) - Man-made glass tumbled by nature
mineral
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Aventurine
Quartz containing inclusions of Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Ferro-silicate Slag
Industrial Vitrified Slag (High-silica amorphous glass)
Mineral byproduct (Anthropogenic)
Slag Glass (Leland Blue variant)
Anthropogenic Vitreous Silicate
mineral
Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Man-made Metal Pin (Non-geological)
Antimony-Lead Alloy or Zinc/Brass Base with Electroplating
Metal Alloy / Manufactured Artifact
Limestone
Calcareous sedimentary rock (CaCO3)
sedimentary
Sandstone
Sedimentary Rock (Quartz Sandstone)
sedimentary
Sandstone
Clastic sedimentary rock (Quartz arenite/Arkose)
sedimentary