Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Category
Igneous Or Mineral
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Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Intrusive igneous rock
igneous
Labradorite
Labradorite (a calcium-enriched sodic plagioclase feldspar mineral - (Ca, Na)(Al, Si)4O8)
mineral
Likely raw metallic mineral specimen
Unidentified; possibly galena-bearing ore or magnetite-rich rock
mineral
Tiny amber-colored crystal or mineral fragment
Indeterminate from image; possibly quartz, citrine, topaz, or iron-stained feldspar
mineral
Granite
Felsic intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Red garnet crystal cluster
Most likely almandine garnet, Fe₃Al₂(SiO₄)₃; exact species cannot be confirmed from the image alone.
mineral
Quartz-bearing pegmatitic rock with feldspar
Granitic pegmatite; chiefly quartz (SiO₂), feldspar, and mica
igneous
Basalt
Extrusive Igneous Rock
igneous
Pyrite Nodules / Weathered Pyrite
Iron Sulfide (FeS2)
mineral
Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation
SiO2 (if Quartz), ZrO2 (if Cubic Zirconia)
mineral
Sapphire
Corundum (Al2O3)
mineral
Geode
Quartz / Chalcedony nodule
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Hematite)
mineral
Gneiss
Gneiss
metamorphic
Black Obsidian
Volcanic Glass (Amorphous SiO2 with trace impurities)
igneous
Strawberry Quartz (Quartz with Hematite inclusions)
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Granite
Felsic intrusive igneous rock
igneous
White tumbled stone, likely quartz or calcite
Indeterminate; possibly quartz (SiO₂) or calcite (CaCO₃)
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic silicate with secondary mineral inclusions)
Igneous
Basalt with Secondary Mineralization (Likely Zeolites or Calcite)
Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)
igneous
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Blue Apatite
Fluorapatite / Apatite (Ca5(PO4)3(F,Cl,OH))
mineral
Porphyry
Porphyritic Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Hematite
Iron(III) oxide (Fe2O3)
mineral
Obsidian
Volcanic Glass (SiO2)
igneous
Epidote with Quartz/Feldspar
Epidote (Ca2(Al, Fe)3(SiO4)3(OH)) with associated minerals in a host rock
Mineral/Metamorphic rock
Granite
Felsic intrusive igneous rock
igneous
Milky Quartz (Common Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Epidote
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
mineral
Syenite
Syenite (Phaneritic Igneous Rock)
igneous
Diorite river stone
Intermediate Plutonic Igneous Rock (Diorite)
igneous
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Foliated Metamorphic Rock (likely Gneiss or Schist)
Gneissic Metamorphic Rock
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Pegmatite (Quartz, Feldspar, and Tourmaline/Biotite)
Pegmatitic Igneous Rock
igneous