Orgonite Pyramid (containing Amethyst and mixed minerals)
Silicon Dioxide (SiO2) in synthetic resin
gemstone
Category
Anthropogenic Sedimentary (Man Made)
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Mother of Pearl (Nacre)
Calcium Carbonate (primarily aragonite, with conchiolin)
Organic Gemstone/Biomineral
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
mineral
Ferrochrome Slag
Anthropogenic silicate/oxide glass (Complex silicate matrix with Cr-Fe-Si inclusions)
Industrial byproduct (often confused with igneous rocks or meteorites)
Granite
Felsic intrusive igneous rock
igneous
Pink Granite (Alkali-feldspar Granite)
Felsic intrusive igneous rock (composition: KAlSi3O8, SiO2, NaAlSi3O8)
igneous
Precious Coral (Red Coral)
Corallium rubrum (Calcium Carbonate, CaCO3)
mineral
Diamond
C (Carbon)
gemstone
Green cabochon gemstone, likely aventurine or dyed chalcedony
Indeterminate from image; possible quartz variety (SiO₂), including aventurine quartz or chalcedony
gemstone
Seven Chakra Bonded Stone
Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz
metamorphic
Granite
Intrusive Felsic Igneous Rock (primarily Quartz and Feldspar)
igneous
Sunstone (Aventurine Feldspar)
(Ca,Na)((Al,Si)2Si2O8) with inclusions of Cu or Fe2O3
mineral
Diamond
Carbon (C)
mineral
Diamond
Diamond (pure Carbon, C)
mineral
Rough Diamond
Pure Carbon (C)
mineral
Obsidian
Volcanic glass
igneous
Obsidian
Volcanic glass (SiO2)
igneous
Sunstone
(Ca,Na)((Al,Si)2Si2O8) - Plagioclase Feldspar
mineral
Pearl
Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3
mineral
Pink Granite
Phaneritic Felsic Igneous Rock (composed of orthoclase, quartz, and plagioclase)
igneous
Chrysocolla
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Red Quartzite
Quartzite (Metamorphic quartz sandstone)
metamorphic
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
igneous
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Pearl
Aragonite / Calcium Carbonate (CaCO3)
mineraloid
Diamond (Cluster Ring)
Carbon (C)
mineral
Granite
Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Flower Agate
Chalcedony (SiO2) with inclusions
mineral
Moonstone (specifically Rainbow Moonstone / White Labradorite)
White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)
mineral
Onyx (Black) and Mother of Pearl Inlay
Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl
mineral
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
mineral
Polished blue stone, likely sodalite or dyed agate
Sodalite: Na₈(Al₆Si₆O₂₄)Cl₂; exact identification requires testing
mineral
Granite
Granite (plutonic igneous rock)
igneous
Fossiliferous Limestone
Limestone (composed primarily of calcite with included fossils CaCO3)
Sedimentary
Snowflake Obsidian
Volcanic glass with Cristobalite inclusions (70–75% SiO2)
igneous
Unakite
Altered Granite (Epidotized Granite)
metamorphic
Basalt
Basalt
igneous
Granite
Phaneritic Igneous Rock (composed mostly of Quartz, Feldspar, and Mica)
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Granite (a phaneritic intrusive igneous rock)
igneous