Tumbled rhodonite
Rhodonite, manganese inosilicate (MnSiO₃)
mineral
Category
Metamorphic
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Tumbled green aventurine (probable)
Quartz, SiO₂, with fuchsite or other green mica inclusions
mineral
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Garnet (Almandine)
Almandine Garnet (Fe3Al2(SiO4)3)
gemstone
Rhodonite-bearing rock
Rhodonite (MnSiO₃), likely with manganese oxides and quartz
metamorphic
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)
metamorphic
Green Aventurine
Tectosilicate, variety of Quartz (SiO2) containing Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Chromium-rich Fuchsite mica
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Green Aventurine
Silicon dioxide (SiO2) with inclusions of Fuchsite
mineral
Magnetite (Small Granule)
Magnetite (Fe3O4)
mineral
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Rhodonite
Rhodonite (Manganese silicate, (Mn,Fe,Mg,Ca)SiO3)
mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3
mineral
Muscovite Mica
KAl2(AlSi3O10)(OH)2
mineral
Banded gneiss
Gneiss, commonly quartz–feldspar–mica gneiss
metamorphic
Epidote
Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)
mineral
Greenschist
Chlorite-actinolite schist
metamorphic
Sapphire
Corundum (Al2O3)
mineral
Kyanite
Al2SiO5
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Biotite-rich schist (probable mica schist)
Mica schist; predominantly quartz, biotite, and feldspar
metamorphic
Garnet-bearing quartz (likely almandine garnet in milky quartz)
Quartz (SiO₂) with garnet, likely almandine (Fe₃Al₂(SiO₄)₃)
metamorphic
Almandine Garnet in Schist
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
metamorphic
Rainbow Moonstone (White Labradorite)
Labradorite (White varieties with Schiller effect), (Na,Ca)(Al,Si)4O8
gemstone
Blue Dumortierite Quartz
Dumortierite Inclusions in Quartz (SiO2 with Al7(BO3)(SiO4)3O3)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
White Sapphire
Corundum (Al2O3)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Yellow Aventurine (Yellow Quartz)
Silicon Dioxide (SiO2) with inclusions of Muscovite or Mica
Mineral (variant of Quartz)
Moonstone (Feldspar)
Orthoclase or Oligoclase (KAlSi3O8)
mineral
Ruby in Zoisite
Anyolite (Zoisite with Corundum) Member of the Epidote Group
metamorphic
Green Quartz (Aventurine)
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Garnet (Almandine/Pyrope series)
Silicate mineral (Almandine: Fe3Al2Si3O12; Pyrope: Mg3Al2Si3O12)
mineral
Banded Slate
Metamorphic Argillite / Slate
metamorphic
Veined quartz-bearing metamorphic rock
Likely quartzite or quartz-veined hornfels; exact identification requires a fresh surface and tests
metamorphic
Quartz-rich metamorphic rock, likely quartzite
Quartzite; predominantly microcrystalline quartz (SiO₂), possibly with mica or iron-oxide impurities
metamorphic
Likely amphibolite
Amphibolite, composed chiefly of hornblende and plagioclase feldspar
metamorphic
Quartz (likely milky or iron-stained quartz)
Quartz, silicon dioxide (SiO₂)
mineral