Synthetic Faux Fur Fursuit
Polyacrylonitrile / Polyester (Synthetic Textile)
not a rock (synthetic material/costume)
Category
Man Made Object (Ring)
Browse man made object (ring) specimens identified by the Rock Identifier community.
Learn about Man Made Object (Ring) in the encyclopedia
View all →
Tumbled Carnelian
Silicon Dioxide (Variety of Chalcedony), SiO2
gemstone
Carnelian Agate
Silicon Dioxide (SiO2) with iron impurities
mineral
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
mineral
Carnelian
SiO2 (Silicon Dioxide), a variety of Chalcedony
mineral
Carnelian
SiO2 (Chalcedony with iron oxide impurities)
mineral
Tiger Shark Fossil Tooth
Galeocerdo cuvier (fossilized)
sedimentary
Green Aura Quartz
Silicon Dioxide (SiO2) bonded with metallic vapors (typically Gold, Chromium, or Titanium)
mineral
Flint (Chert Nodules)
SiO2 (Cryptocrystalline Quartz)
sedimentary
Turquoise (likely stabilized or simulated Howlite)
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
mineral
Chert (Flint/Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized Wood (Petrified Wood)
Silicified Wood (primarily quartz/chalcedony replacing organic matter)
Sedimentary (with some aspects of mineral replacement)
Obsidian
Obsidian (volcanic glass)
igneous
Sandstone with Liesegang Rings
Arenite with Iron Oxide Liesegang Banding
sedimentary
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Diamond (Cut jewelry specimen)
Diamond (pure Carbon, C)
mineral
Ruby in Matrix
Corundum (Al2O3)
mineral
Basalt
Basalt
Igneous
Diamond
Native Carbon (C)
gemstone
Rose Quartz (likely carved)
Rose Quartz (SiO2)
Mineral
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Bloodstone (Heliotrope)
Chalcedony (cryptocrystalline Quartz, SiO2) with inclusions of Iron Oxide/Hematite
mineral
Fossilized Bivalve Shell (Fossilized Clam)
Bivalvia (class) / CaCO3 (Calcium Carbonate)
fossil
Carnelian
SiO2 (Silicon Dioxide - Chalcedony variant)
mineral
Coquina
Bioclastic Limestone
sedimentary
Coquina
Bioclastic Limestone
sedimentary
Sandstone (Wonderstone)
Arenite with Liesegang rings
sedimentary
Sandstone Concretion
Sedimentary Concretion (Quartz sand bound by mineral cement)
sedimentary
Agate
Silicon dioxide (Chalcedony), SiO2
gemstone
Agate
SiO2
mineral
Rough Sapphire (Corundum)
Corundum (Al2O3)
mineral
Pumice
Pumice (Vitreous volcanic rock)
igneous
Chert (specifically Flint Arrowhead)
Silicon dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Petrified Wood
Silicified wood (Quartz/Chalcedony)
Sedimentary
Fossil Sea Urchin (Echinoid)
Echinoidea fossil (often replaced by silica or calcite)
fossil
Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)
Chalcedony (SiO₂)
Mineral (or mineraloid if microcrystalline)
Digital Multimeter (Synthetic Object)
Digital Multimeter (DMM)
not a rock
Green Aventurine
Aventurine Quartz (SiO2 with fuchsite inclusions)
Mineral
Synthetic Convention Badge (Plastic/PVC)
Polyvinyl Chloride (PVC) / Polycarbonate
mineraloid (synthetic)
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Obsidian
Volcanic Glass (70% or more SiO2)
igneous
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous