Carved jasper bear figurine
Jasper, microcrystalline quartz (SiO₂), likely brecciated or orbicular jasper
mineral
Category
Man Made Object (Ring)
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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)
Diamond (Faceted)
Carbon (C)
gemstone
Milky chalcedony cabochon ring
Chalcedony, microcrystalline quartz (SiO₂), likely white or pale agate variety
gemstone
White cabochon gemstone, likely milky chalcedony or opalite
Chalcedony: microcrystalline quartz, SiO₂; appearance may also indicate synthetic opalite glass
gemstone
Diamond
C (Native Carbon)
gemstone
Orbicular jasper (ocean jasper-like jasper)
Microcrystalline quartz (SiO₂), commonly with iron-oxide and clay inclusions
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Black onyx or black agate cabochon
Cryptocrystalline chalcedony, SiO₂; likely black chalcedony/onyx, though dyed material is possible
gemstone
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
gemstone
Tiger's Eye (Multicolor/Variegated)
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)
mineral
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
mineral
Banded Agate
Silicon Dioxide (SiO2)
mineral
Chalcedony / milky quartz flake
Microcrystalline quartz (SiO₂), likely chalcedony; possibly a worked quartzite or chert fragment
mineral
Flint / Chert (Fossiliferous)
Silicon dioxide (SiO2) with microcrystalline quartz
sedimentary
Diamond
Carbon (C)
gemstone
Polished carnelian (reddish-brown chalcedony)
Carnelian, a microcrystalline variety of quartz (SiO₂)
gemstone
Opal-like cabochon ring stone
Likely common opal (hydrated amorphous silica, SiO₂·nH₂O); exact material uncertain from the photograph
gemstone
Polished smoky quartz crystal point
Quartz (SiO₂), likely iron-colored or smoky quartz with milky inclusions
mineral
Tumbled brown chalcedony or agate
Microcrystalline quartz (SiO₂), likely chalcedony; possibly iron-stained jasper or agate
gemstone
Turquoise inlay ring
Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O
gemstone
Green ring, likely jade
Jadeite (NaAlSi₂O₆) or nephrite (calcium-magnesium amphibole); image alone cannot distinguish them
gemstone
Petrified Wood (Silicified Fossil)
Silicified Wood (SiO2)
sedimentary
Petrified Wood
Silicified wood (Quartz/Chalcedony replacement)
fossil
Petrified Wood
Silicified Wood (SiO2 - Silicon Dioxide)
sedimentary
Dearest Ring (Gemstones)
Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)
mineral
Gray rock (possibly basalt or fine-grained granite)
Undetermined; no diagnostic minerals are visible
igneous
Polished greenstone ring/bead
Likely nephrite jade (actinolite–tremolite amphibole aggregate), possibly serpentine or bowenite
metamorphic
Tiger’s eye
Quartz (SiO₂), fibrous pseudomorph after crocidolite
gemstone
Pumice
Pumice (a highly vesicular extrusive igneous rock)
igneous
Andesite
Intermediate Volcanic Rock (Plagioclase-dominant)
igneous
Polished jasper pendant
Jasper, microcrystalline quartz (SiO₂) with iron-oxide and other mineral inclusions
gemstone
Polished banded agate pendant
Agate, a microcrystalline variety of chalcedony (SiO₂)
gemstone
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Slate
Slate (Metamorphosed Shale or Mudstone)
metamorphic
Petrified Wood
Silicified Wood (SiO2)
fossil
Diamond in Gold Setting
Diamond (C - pure carbon)
mineral
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Soapstone Carving
Steatite
metamorphic
Chert (likely jasper/chalcedony-rich chert)
Microcrystalline quartz, SiO₂
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil