Quartz (likely milky or iron-stained quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Category
Metamorphic
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Tumbled milky quartz
Quartz, SiO₂; trigonal crystal system
mineral
Amphibolite
Amphibolite, composed chiefly of hornblende-group amphibole and plagioclase feldspar
metamorphic
Milky quartz cluster
Quartz (silicon dioxide, SiO₂)
mineral
Possible garnet-bearing rock
Likely almandine garnet in a mica-rich metamorphic matrix; exact identification is uncertain from the image
metamorphic
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Milky quartz crystal cluster
Quartz (silicon dioxide, SiO₂)
mineral
Fuchsite
K(Al,Cr)2(AlSi3)O10(OH)2
mineral
Quartz Vein in Schist / Gneiss Metamorphic Matrix
Silicon Dioxide (SiO2) in metamorphic schist host rock
metamorphic
Quartzite (River Stone)
Metamorphic Quartz (SiO2)
metamorphic
Quartz fragment
Quartz (silicon dioxide, SiO₂)
mineral
Magnetite Ore
Magnetite (Fe3O4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Muscovite Mica
Muscovite / KAl2(AlSi3O10)(OH)2
mineral
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
mineral
Sapphirine in Magnesian Schist
Sapphirine: (Mg,Al)8(Al,Si)6O20
metamorphic
Reddish-brown crystalline rock, possibly weathered granite or garnet-bearing schist
Indeterminate; likely quartz–feldspar–mica rock with iron oxides, potentially garnet-bearing
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Rhodonite in Matrix
Rhodonite (Manganese Silicate) - (Mn2+,Fe2+,Mg,Ca)SiO3
mineral
Magnetite (or Magnetic Iron Ore)
Magnetite (Fe3O4)
mineral
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Likely foliated metamorphic rock
Uncertain from the image; possibly mica schist or gneiss
metamorphic
Garnet Amphibolite (or Garnet Gneiss)
Garnet amphibolite / Garnet-bearing metamorphic rock
metamorphic
Epidote
Calcium aluminum iron silicate hydroxide, Ca2(Al, Fe)3(SiO4)3(OH)
mineral
Clear quartz crystal pendant
Quartz (silicon dioxide, SiO₂)
mineral
Likely milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with fuchsite inclusions)
Mineral
Rounded, banded metamorphic cobble
Likely gneiss or foliated quartz-rich metamorphic rock; exact identification is uncertain from the photograph.
metamorphic
Pyrite in Quartz
Iron sulfide in silicon dioxide (FeS2 in SiO2)
mineral
Green Aventurine
SiO2
mineral
Rhodonite
Inosilicate, (Mn,Fe,Mg,Ca)SiO3
mineral
Anthracite Coal
Anthracite (Carbon C)
metamorphic
Almandine Garnet
Almandine (Fe3Al2Si3O12)
mineral
Small quartz-rich pebble, possibly milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Tumbled green aventurine quartz
Aventurine quartz, silicon dioxide (SiO₂) with dispersed fuchsite or other mica inclusions
mineral
Corundum (Sapphire/Ruby in Matrix)
Aluminium oxide (Al2O3)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
White mica (likely muscovite)
Muscovite, KAl₂(AlSi₃O₁₀)(OH)₂
mineral
Jadeite and Assorted Corundum (Ruby/Sapphire) / Beryl (Emerald)
Jadeite (NaAlSi2O6), Ruby/Sapphire (Al2O3), Emerald (Be3Al2(SiO3)6)
mineral
Rhodonite
Manganese Inosilicate (MnSiO3), often with Ca, Fe, Mg, Zn
Mineral
Rounded gray metamorphic pebble, likely quartzite or gneiss
Quartzite (quartz-rich rock) or fine-grained gneiss; exact identification requires testing
metamorphic
Quartzite Pebble
Metamorphic Quartz Arenite
metamorphic