Malachite
Copper carbonate hydroxide Cu2CO3(OH)2
mineral
Category
Mineral, Jewelry
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Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Carnelian
Carnelian (SiO2 with Fe2O3 impurities)
mineral
Grey Chalcedony
Silicon Dioxide (SiO2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Fossilized Shark Tooth (fragment)
Elasmobranchii (Class) fossil
fossil
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
gemstone
Geode (Unopened)
Quartz/Chalcedony concretion
sedimentary
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
Dalmatian Stone
Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)
igneous
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Garnet
Garnet Group (e.g., Almandine, Pyrope)
mineral
Agate (Carnelian Agate with Quartz Matrix)
Silicon Dioxide (SiO2)
mineral
Moonstone (Feldspar)
Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8)
mineral
Rose Quartz
Rose Quartz (SiO2)
mineral
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Spiny Oyster Shell
Spondylus varians (Biogenic Calcium Carbonate)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear/White Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Rough Quartz (Alluvial Pebbles)
Silicon Dioxide (SiO2)
mineral
Rhodochrosite
Manganese Carbonate (MnCO3)
mineral
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Quartz
Silicon Dioxide (SiO2)
mineral
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Fossilized Shark Tooth
Elasmobranchii gen. indet.
fossil
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
sedimentary
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz (Tumbled)
Silicon Dioxide (SiO2)
mineral
Green Garden Quartz (Phantom Quartz)
Silicon Dioxide (SiO2) with Chlorite inclusions
mineral
Aventurine
Silicon dioxide (Quartz) with inclusions (KAl2(AlSi3O10)(OH)2)
mineral
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with Hematite impurities
mineral