Amber (Rough)
Amber (Fossilized Tree Resin, succinite)
mineral
Category
Organic (Non Rock)
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Amber
Succinite (Fossilized Tree Resin) - C10H16O
mineral
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Chert (with Iron Staining)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Pink Opal
Hydrated Silicon Dioxide (SiO2 · nH2O)
mineraloid
Limestone and Quartz Gravel with Petrified Wood
Sedimentary gravel aggregate and fossilized wood
sedimentary
Chert (variant Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Amber
Succinite (organic gemstone, approx. C10H16O)
fossil
Limestone (specifically fossiliferous/skeletal limestone)
Calcium Carbonate (CaCO3)
sedimentary
Chert (potentially Jasper/Common Opal mixture)
Microcrystalline Quartz (SiO2)
sedimentary
Granite (likely weathered granitic rock)
Granite; chiefly quartz (SiO₂), feldspar, and mica
igneous
Amber
Succinite (Fossilized Tree Resin), C10H16O
Organic Mineraloid
Amber
Succinite (specifically for Baltic amber); Complex mixture of organic compounds (C10H16O)
Organic Mineraloid
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Amber
Succinite (fossilized resin); C10H16O
mineraloid
Baltic Amber
Succinite (Fossilized Resin)
fossil
Natural Freshwater Pearl
Calcium Carbonate (Aragonite and Calcite), CaCO3
gemstone
Limestone Nodules or Chert
Sedimentary rock fragment
sedimentary
Amber
Succinite (specifically for Baltic amber; fossilized tree resin)
Organic (Sedimentary-associated)
Black Limestone with Calcite Veining
Bituminous Limestone (CaCO3 with Organic Carbon inclusions)
sedimentary
Red coral beads (possibly dyed or imitation coral)
Corallium spp. skeleton, composed mainly of calcium carbonate (calcite); exact material cannot be confirmed from the image
gemstone
Pink coral and green-stone jewelry
Likely pink coral (calcium carbonate, CaCO₃) set with an unidentified green stone; the image is too indistinct to identify the green material reliably.
gemstone
Rounded basalt cobble
Basalt, predominantly plagioclase feldspar and pyroxene with minor olivine and iron oxides
igneous
Dark brown flint/chert fragment
Microcrystalline quartz (SiO₂), often with minor chalcedony and impurities
sedimentary
Likely rough amber
Amber (fossilized tree resin; organic mineraloid)
gemstone
Quartzite
Metamorphic Quartz Rock, SiO2
metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
River Pebble (likely Quartzite or Diorite)
Metamorphosed Quartz-rich Rock / Intermediate Igneous Rock
metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Shale
Laminated Fissile Pelite
sedimentary
Fossilized Bone
Vertebrate fossil (mineralized bone)
fossil
Opal
Hydrated amorphous silica (SiO2·nH2O)
gemstone
Amber
Succinite (fossilized resin)
Organic Mineraloid
Amber
Resinite (Succinite if from the Baltic); Chemical Formula: C10H16O (approximate)
Organic Diamond/Gemstone (often associated with Sedimentary sequences)
Amber
Succinite (fossilized tree resin)
mineral
Shale
Shale (Lutite)
sedimentary
Amber
Succinite (C10H16O)
gemstone
Basalt pendant
Basalt; predominantly plagioclase feldspar, pyroxene, and commonly olivine
igneous
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic