Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Category
Mineral Health
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Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Dyed Quartz / Rose Quartz Imitation
Silicon Dioxide (SiO2) with artificial pigment
mineral
Shale (with minor calcite veining)
Clastic sedimentary rock (primarily clay minerals and quartz)
sedimentary
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Aventurine (Green Quartz)
Quartz with Fuchsite inclusions (SiO2 with K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Limonite (Pseudomorph after Pyrite/Marcasite)
Hydrated Iron Oxide (FeO(OH)·nH2O)
mineral
Pink Granite
Felsic Plutonic Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
Igneous
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Greenschist (Greenstone)
Chlorite schist (primarily Chlorite-Epidote-Actinolite-Albite)
metamorphic
Dalmatian Jasper
Dalmatian Stone (not a true Jasper, primarily a Perthitic Feldspar with Arfvedsonite)
igneous
Fossilized Sea Urchin (Echinoid)
Echinoidea (Class) - likely replaced by Calcite or Quartz
sedimentary
Prasiolite
Silicon Dioxide (SiO2)
mineral
Garnet Schist
Almandine Garnet Schist (Fe3Al2(SiO4)3 in Schistose matrix)
metamorphic
Quartz (Milky/Clear)
Silicon Dioxide (SiO2)
mineral
Feldspar (Orthoclase)
Potassium Alveolar Silicate (KAlSi3O8)
mineral
Garnet-Bearing Gneiss
Almandine-Garnet Gneiss
metamorphic
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Rose Quartz (SiO₂)
mineral
Rose Quartz
Rose Quartz (SiO2)
Mineral
Biotite Granite
Phaneritic Felsic Igneous Rock
igneous
Citrine
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-Stained or Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz-veined Mudstone or Argillite
SiO2 (Quartz) in Siltstone/Mudstone matrix
sedimentary
Red Garnet
Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)
mineral
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
mineral
Limonite (Iron Ore)
Limonite (an FeO(OH)·nH2O mineraloid, not a true mineral due to variable composition)
Mineral
Nephrite (a form of Jade)
Nephrite (a variety of the mineral actinolite, Ca2(Mg,Fe)5Si8O22(OH)2)
Mineral
Limonite-pseudomorph after Pyrite (Prophecy Stone)
Goethite and Limonite secondary minerals (FeO(OH)·nH2O) replacing Pyrite (FeS2)
mineral
Schist
Mica Schist
metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Greenschist / Chloritaform Schist
Chlorite Schist (Group of Silicate Minerals)
metamorphic
Prase or Green Quartz
Silicon Dioxide (SiO2 with actinolite or chlorite inclusions)
Mineral
Sandstone (River Cobble)
Clastic Sedimentary Rock (primarily Quartz with Feldspar)
sedimentary
Strawberry Quartz (Quartz with Hematite inclusions)
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Sodalite Syenite (popularly known as Yooperlite)
Sodalite-rich Syenite (composed of alkali feldspar and sodalite)
Igneous
Barite
Barium sulfate (BaSO4)
mineral
Granite
Granite
igneous
Gneiss
Gneiss
metamorphic
Porphyritic Basalt (Flower Stone)
Basalt with Feldspar phenocrysts
igneous
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Quartzite
Quartzite (SiO2)
metamorphic