Blue Chalcedony
Microcrystalline Quartz (SiO2)
mineral
Category
Man Made Object (Ring)
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Blue calcite sphere
Calcite (CaCO₃), commonly blue-calcite variety
mineral
Carnelian
Carnelian (a variety of Chalcedony, which is a microcrystalline quartz, SiO2)
Mineral (variety of Chalcedony)
Moonstone
Orthoclase Feldspar (KAlSi3O8) or Albite mixtures
mineral
Diamond
Natural Diamond (Carbon, C)
gemstone
Diamond (Cut Gemstone)
Natural Carbon (C)
gemstone
Jade
Jadeite or Nephrite
Mineral/Mineraloid
Wishing Stone
Greenschist or Basalt with Quartz/Calcite Vein
metamorphic
Standing Liberty Quarter (Silver Specimen)
Native Silver alloy (Ag with Cu traces)
mineral
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Green Chalcedony (Green Agate)
Silicon Dioxide (SiO2)
mineral
Nephrite Jade Ring
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
gemstone
Basalt with Quartz/Feldspar Vein
Mafic Volcanic Rock (Basalt) with SiO2 hydrothermal vein
igneous
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineralological variety
Red Jasper
Silicon Dioxide with Hematite (SiO2 + Fe2O3)
sedimentary
Petrified Wood / Red Jasper
Silicified wood (primarily Silicon Dioxide, SiO2)
sedimentary
Pumice
Pumice (Amorphous volcanic glass)
igneous
Pumice
Pumice (a volcanic glass, primarily SiO2)
igneous
Diamond (in a gold setting)
Carbon (C)
mineral
Brick
Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)
Man-made material (constructed)
Blue Chalcedony
Chalcedony (Silicon Dioxide, SiO2)
mineral
Pumice
Pumice (a highly vesicular extrusive igneous rock)
igneous
Andesite
Intermediate Volcanic Rock (Plagioclase-dominant)
igneous
Banded Sandstone
Arenite with Liesegang banding
sedimentary
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)
mineral
Black Onyx
Black Chalcedony (SiO2)
mineral
Petrified Wood
Silicified Wood (primarily quartz/chalcedony replacing organic wood structure, SiO2)
sedimentary
Garnet (Pyrope or Almandine)
Silicate (X3Y2Si3O12)
mineral
Unable to identify - Image contains non-geological items
N/A
Eye Agate
Band Chalcedony (Silicon Dioxide, SiO2)
mineral
Banded Sandstone (Liesegang Rings)
Sedimentary sandstone with Iron oxide precipitates
sedimentary
Blue Sapphire and Diamond (Set in Metal)
Corundum (Al2O3) and Diamond (C)
mineral
Cubic Zirconia (CZ)
Cubic Zirconium Dioxide (ZrO2)
mineral (synthetic)
Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)
Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy
Mineral (synthetic) and Metal (precious/base)
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Synthetic / Textile
Man-made Synthetic Material (Costume Faux Fur)
Synthetic Polymer (Polyester/Acrylic)
not a rock
Terracotta (Man-made ceramic brick fragment)
Baked clay / High-iron ceramic (Silicate-based ceramic)
Anthropogenic material (Man-made sedimentary mimic)