Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
sedimentary
Category
Organic Gemstone (Fossilized Resin)
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Jasper
Microcrystalline quartz (SiO2)
sedimentary
Fossil coral (likely solitary rugose coral)
Rugosa; possibly genus Heliophyllum or similar
fossil
Dendritic Agate (or Dendritic Opal)
SiO2 (for Agate), SiO2·nH2O (for Opal)
Mineral
Calcite rosette (possibly fossilized shell fragment)
Calcite, CaCO₃; crystal habit appears botryoidal/rosette-like
mineral
Bamboo Leaf Jasper
Silicified Siltstone or Jasper (SiO2)
sedimentary
Pearl necklace
Pearl (biogenic calcium carbonate, chiefly aragonite; CaCO₃)
gemstone
Red Coral (with Hematite and Black Pearl accents)
Corallium rubrum (Calcium Carbonate, CaCO3)
mineral
Kambaba Jasper
Stromatolite (Fossilized Algae)
sedimentary
Pink Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
mineral
Fossilized Shark Tooth
Elasmobranchii tooth (commonly Otodus or Scapanorhynchus sp.)
fossil
Fossiliferous shale or mudstone with plant fossils
Carbonaceous mudstone/shale containing fossilized foliage, likely fern or seed-fern impressions
fossil
Stromatolite fossil in Chert/Jasper
Cyanobacteria / Microcystis (fossilized)
fossil
Kambaba Jasper
Stromatolite (fossilized algae)
sedimentary
Coprolite
Coprolite (fossilized feces)
fossil
Fossilized Coral (Coquina/Limestone)
Cnidaria Anthozoa (Fossilized)
sedimentary
Coral Fossil
Scleractinia (Fossilized Coral)
fossil
Spinosaurid Dinosaur Tooth
Spinosaurus aegyptiacus (fossilized)
fossil
Kambaba Jasper (Crocodile Jasper)
Stromatolite (Fossilized Algae)
sedimentary
Pearl
Calcium Carbonate (Aragonite/Calcite) with Conchiolin, CaCO3
gemstone
Fossil Shark Tooth (Cretaceous white shark type)
Squalicorax (commonly known as Crow Shark)
Organic specimen (fossil)
Banded Iron Formation (BIF)
Banded Iron Formation (Magnetite/Hematite and Chert)
sedimentary
Kambaba Jasper
Stromatolite (Fossilized Algae)
sedimentary
Fossil Shell (Bivalve)
Class Bivalvia (fossilized)
fossil
Coral Fossil (or Tumbled Shell/Coral fragment)
Anthozoa (Fossilized Coral)
fossil
Coprolite
Coprolite (fossilized feces)
fossil
Gastropod Fossil
Class Gastropoda (fossilized)
fossil
Fossil Coral
Scleractinia (Fossilized Hexacoral)
fossil
Kambaba Jasper
Stromatolite (Fossilized Algae)
sedimentary
Kambaba Jasper
Stromatolite (Fossilized Algae)
sedimentary
Kambaba Jasper
Stromatolite (Fossilized Algae)
sedimentary
Kambaba Jasper
Stromatolite (Fossilized Algae)
sedimentary
Fossilized Coral (Petoskey-like or Favosites)
Anthozoa (Fossilized Coral)
sedimentary
Turquoise and Spiny Oyster (Heishi style beads)
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Spondylus (Spiny Oyster shell)
mineral and organic gemstone
Fossil bivalve shell
Fossilized or calcitic bivalve, likely a scallop-type pectinid (Bivalvia: Pectinidae)
fossil
Turquoise and Red Coral
Turquoise: CuAl6(PO4)4(OH)8·4H2O; Red Coral: Corallium rubrum (organic gemstone)
mineral
Precious Red Coral
Corallium rubrum / Corallium japonicum
mineral (organic gemstone)
Pearl
Calcium carbonate (Aragonite/Calcite) - CaCO3
gemstone
Green fluorite (likely polished/cut specimen)
Fluorite, calcium fluoride (CaF₂)
mineral
Petoskey Stone
Hexagonaria percarinata
Sedimentary
Polished black stone egg, probably black obsidian
Obsidian, a natural volcanic glass; composition primarily silica-rich glass (approximately SiO₂), with variable iron and other trace elements
gemstone
Fossilized Coral (Petoskey Stone / Charlevoix Stone type)
Hexagonaria percarinata (or similar Favositidae/Rugosa coral)
fossil