Pink Orthoclase Feldspar with Dendrites
Orthoclase (KAlSi3O8) with Manganese Oxide dendrites
mineral
Category
Igneous And Mineral
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Quartz Crystal Fragment
Silicon Dioxide (SiO2)
mineral
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Granite Pebble
Granite (Phaneritic intrusive igneous rock)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Botryoidal Agate / Chalcedony Geode
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Dalmatian Stone
Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)
igneous
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Epidote
Calcium aluminum iron silicate hydroxide (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Banded Gneiss
Gneiss (Metamorphic rock predominantly containing quartz, feldspar, and mica)
metamorphic
Olivine in Basalt matrix
Peridotite (Mg, Fe)2SiO4
igneous
Diorite
Phaneritic intermediate plutonic rock (Diorite)
igneous
Indigo Gabbro
Gabbro (MaFIC intrusive rock)
igneous
Blue Quartz (or Blue Aventurine)
Silicon Dioxide (SiO2) with inclusions (typically Crocidolite or Dumortierite)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite (Pegmatitic)
Phaneritic Felsic Igneous Rock
igneous
Basalt
Mafic Extrusive Igneous Rock
Igneous
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock including secondary mineral infills)
Igneous
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Yellow Citrine Quartz
Silicon Dioxide (SiO₂)
mineral
Smoky Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Chalcedony (Quartz Var.)
Silicon Dioxide (SiO2)
mineral
Amazonite
Microcline (KAlSi3O8)
mineral
Greenschist
Greenschist (containing Chlorite, Epidote, and Actinolite)
metamorphic
Quartz (Alluvial Pebbles)
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained or Rose variant)
Silicon Dioxide (SiO2)
mineral
Pink Granite (with Potassic Feldspar and Quartz)
Felsic Intrusive Igneous Rock (Granite)
igneous
Pegmatite with Mica
Granitic Pegmatite (containing Muscovite and Biotite)
igneous