Quartz with Iron Staining
Silicon Dioxide (SiO2) with Hematite/Limonite inclusions
mineral
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.
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Glauconitic Sandstone (Greensand)
Glauconitic Quartz Arenite (containing Glauconite, (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz with inclusions (likely Chlorite or Hornblende) and country rock
SiO2 (Quartz) with associated ferromagnesian minerals
Mineral/Igneous/Metamorphic association
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
mineral
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Sand Tiger Shark Tooth (Fossil)
Carcharias taurus (fossilized dentin/enameloid)
fossil
Sandstone
Arenite (SiO2 based clastic rock)
sedimentary
Chert (Flint)
Silicon dioxide (SiO2)
sedimentary
Almandine Garnet in Matrix
Almandine, Fe3Al2(SiO4)3
metamorphic
Jasper Pebble
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Chert (Chocolate or Brown Flint)
Chert (SiO2)
sedimentary
Schorl (Black Tourmaline)
NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Sandstone (Pebble)
Sandstone (SiO2 with matrix/cement)
sedimentary
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Quartz (Rose/Pink variety)
Silicon Dioxide (SiO2)
mineral
Chromite
Chromite (FeCr2O4)
mineral
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
mineral
Dalmatian jasper
Dalmatian stone; commonly a leucocratic alkali-feldspar-rich igneous rock with arfvedsonite or aegirine inclusions
igneous
Quartz (Rose Quartz or Jasper variety)
Silicon Dioxide (SiO2)
mineral
Diorite (River Pebble)
Intermediate Phaneritic Igneous Rock
igneous
Garnet (likely Almandine or Pyrope)
Garnet Group (Fe3Al2Si3O12 or Mg3Al2Si3O12)
mineral
Green Glass Slag
Amorphous Silicon Dioxide (SiO2) with metal oxide impurities
mineraloid (man-made)
Orange Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartz Arenite)
Sandstone (dominated by SiO2 quartz grains)
sedimentary
Celadonite in Basalt (Green Earth)
Celadonite (K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2)
mineral
Feldspar (Orthoclase / Microcline) with Quartz
KAlSi3O8 (Potassium Feldspar / Orthoclase)
mineral
Rose Quartz / Iron-stained Quartz
SiO2 (Silicon Dioxide)
mineral
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Vanadinite
Lead Chlorovanadate, Pb5(VO4)3Cl
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone
Clastic Sedimentary Rock
sedimentary
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Diamond
Carbon (C)
mineral
Vanadinite
Pb5(VO4)3Cl
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)
metamorphic