Red Jasper
SiO2 (Silicon Dioxide with Iron inclusions)
sedimentary
Category
Metamorphic Or Sedimentary
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Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Gneiss with Quartz Vein
Gneiss (containing SiO2 vein)
metamorphic
Gneiss
Gneiss
metamorphic
Red Jasper (Opaque Chalcedony)
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Schorl (Black Tourmaline)
Sodium Iron Aluminum Borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
White Quartz Star-cut crystal
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite (Iron Pyrite)
Iron Sulfide (FeS2)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Biotite Schist
Biotite Schist
Metamorphic
Ruby
Corundum (Al2O3 with chromium impurities)
mineral
Dragon Blood Jasper
Epidote with Red Jasper inclusions (SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Greenstone
Metamorphosed Mafic Igneous Rock
metamorphic
Banded Onyx (Green Onyx)
Banded Calcite or Travertine (CaCO3)
Sedimentary
Gneiss
Gneiss (High-grade metamorphic rock composed primarily of Quartz, Feldspar, and various Micas)
metamorphic
Staurolite
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Garnet (Almandine/Pyrope series)
Garnet Group - X3Y2(SiO4)3
mineral
Greenschist
Greenschist facies rock
Metamorphic
Banded Gneiss (River Cobble)
Gneiss (a high-grade metamorphic rock)
metamorphic
Apatite
Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))
mineral
Gneiss
Gneiss (a type of metamorphic rock)
Metamorphic Rock
Quartz River Pebbles
Silicon Dioxide (SiO2)
sedimentary
Epidote
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
mineral
Garnet Schist
Almandine-Muscovite Schist
metamorphic
Marble
Marbles are primarily composed of calcite (calcium carbonate, CaCO3) or dolomite (calcium magnesium carbonate, CaMg(CO3)2).
Metamorphic Rock
Gneiss
Gneiss (Metamorphic rock of variable composition, typically SiO2 rich)
metamorphic
Rough Garnet (Almandine)
Almandine Garnet (Fe3Al2(SiO4)3)
mineral