Amber
Succinite (specifically for Baltic amber); approximate formula C10H16O
Mineraloid
Category
Mineral And Organic Gemstone
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Amber
Succinite (C10H16O)
mineraloid
Amber
Succinite (fossilized tree resin)
mineral
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Weathered coal-bearing sedimentary rock (likely shale or mudstone with coal fragments)
Carbonaceous shale/mudstone; predominantly clay minerals, quartz, and organic carbon
sedimentary
Quartz (Raw and Water-worn)
Silicon Dioxide (SiO2)
mineral
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Black Chert/Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Chalcedony mix)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Yellow Jasper/Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Black Chert/Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Flint)
Silicon Dioxide (SiO2)
sedimentary
Black Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Chert (Jasper)
Cryptocrystalline Quartz (SiO2)
sedimentary
Amber
Succinite (Fossilized Resin)
mineral
Chert (Red Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Fossiliferous Limestone
Biogenic Limestone (CaCO3)
sedimentary
Limestone (Fossiliferous)
Sedimentary Carbonate Rock (CaCO3)
sedimentary
Translucent amber-colored gemstone, likely citrine or amber
Most plausibly quartz (SiO₂), specifically citrine; amber would be fossilized resin (organic polymer)
gemstone
Amber
Succinates (Organic Fossilized Resin)
mineral
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Amber
Succinates (Fossilized Resin)
mineral
Fossilized Rugose Coral (Horn Coral)
Order Rugosa
sedimentary
Chert (often called Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Small seashell fossil or shell fragment
Likely calcium-carbonate shell material, chiefly aragonite or calcite; exact species indeterminate
fossil
Limestone with Fossil Fragment
Sedimentary carbonate rock (CaCO3)
sedimentary
Black Limestone
Bituminous Limestone (Calcium Carbonate - CaCO3)
sedimentary
Red Chert (Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Shell Cameo (Sardonyx Shell)
Cassis madagascariensis (Sardonyx shell)
mineral (biogenic silica/calcium carbonate substrate)
Anthracite Coal
Anthracite (Highly Metamorphosed Coal)
sedimentary
Shark Tooth Fossil
Carcharocles megalodon or similar extinct shark tooth
fossil
Likely weathered flint or chert fragment
Cryptocrystalline quartz (SiO₂), possibly siliceous chert/flint
sedimentary
Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Pyrite
Pyrite (Iron sulfide, FeS₂)
Mineral
Amber
Succinite (C10H16O)
mineraloid
Chert (Flint)
Microcrystalline Opaline Silica (SiO2)
sedimentary
Angel Skin Coral
Corallium rubrum / Corallium spp. (Calcium Carbonate, CaCO3)
gemstone
Chert (variant Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Weathered granite or granitic pebble
Granite; chiefly quartz, feldspar, and mica
igneous
Quartz in Matrix
Silicon Dioxide (SiO2)
mineral