Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Category
Man Made Glass (Often Grouped With Minerals In Lapidary)
Browse man made glass (often grouped with minerals in lapidary) specimens identified by the Rock Identifier community.
Learn about Man Made Glass (Often Grouped With Minerals In Lapidary) in the encyclopedia
View all →
Red Quartzite
Quartzite (SiO2)
metamorphic
Tumbled orange chalcedony / jasper
Microcrystalline quartz, SiO₂, likely iron-stained chalcedony or quartz-rich jasper
mineral
Quartz (Agate/Jasper pebble)
Silicon dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Beaded gemstone bracelet, likely lapis lazuli and pale quartz/agate
Lapis lazuli: lazurite-rich rock, chiefly (Na,Ca)₈(AlSiO₄)₆(S,SO)₂; pale beads are uncertain
gemstone
Blue Chalcedony Cube
Silicon Dioxide (SiO2)
mineral
Chert (Jasper/Flint)
Silicon Dioxide (SiO2)
sedimentary
Vanadinite
Pb5(VO4)3Cl
mineral
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
mineral
Chert Pebble/Nodule
Chert (a microcrystalline or cryptocrystalline sedimentary form of quartz, SiO2)
Sedimentary
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Man-made material (simulant/artifact)
Dalmatian jasper (often sold as Dalmatian stone)
Quartz-bearing microgranular felsic rock, commonly an altered rhyolite or related volcanic rock with black aegirine/arfvedsonite-group inclusions
igneous
Chert (and Agate/Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Desert Rose (Barite Rose / Gypsum Rose)
Barium Sulfate (BaSO4) or Hydrous Calcium Sulfate (CaSO4%22H2O)
mineral
Chert
Microcrystalline quartz (SiO2)
sedimentary
Quartz with Muscovite Mica
SiO2 with KAl2(AlSi3O10)(OH)2
mineral group
Pink potassium feldspar (orthoclase/microcline)
KAlSi₃O₈; likely massive potassium feldspar, possibly with quartz
mineral
Feldspar (Orthoclase / Microcline) with Quartz
KAlSi3O8 (Potassium Feldspar / Orthoclase)
mineral
Red-and-white jasper/chalcedony pebble
Microcrystalline quartz (SiO₂), likely hematite- or iron-oxide-bearing jasper with white chalcedony/quartz
mineral
Mica (Muscovite)
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Chert (specifically Flint or Nodular Chert)
Silicon dioxide (SiO2)
sedimentary
Quartzite with Chlorite / Epidote Inclusion
Metamorphic Quartzite (SiO2 with chlorite/epidote inclusions)
metamorphic
Chromite
Chromite (FeCr2O4)
mineral
Pink Quartz Grains
Silicon Dioxide (SiO2)
mineral
Fossil Shark Tooth
Carcharocles or Lamniformes (order)
fossil
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Mineral, Jewelry
Quartz Vein in Hematitic Siltstone
Hydrothermal Quartz (SiO2) in Ferriferous Matrix
metamorphic
Weathered chert or chalcedony nodule
Microcrystalline quartz (SiO₂), possibly silicified limestone or agate-like chalcedony
sedimentary
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Green obsidian (likely moldavite)
Natural volcanic glass; if extraterrestrial-impact glass, moldavite (tektite)
gemstone
Blue Lace Agate
Chalcedony (SiO2) with trace inclusions
mineral
Chert (Cherty Shale / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz (Yellow/Orange variety)
Silicon Dioxide (SiO2)
mineral
Chert Nodules in Limestone
Microcrystalline Quartz (SiO2) in Carbonate Matrix
sedimentary
Chert (Flint)
SiO2 (Microcrystalline Quartz)
sedimentary