Milky Quartz Pebble
Silicon Dioxide (SiO2)
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.
Learn about Man Made Glass (Often Grouped With Minerals In Lapidary) in the encyclopedia
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Rough Rose Quartz
Quartz (Silica - SiO2)
mineral
Sandstone
Clastic sedimentary rock (Quartz arenite/Arkose)
sedimentary
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Chert (Flint) Nodule
Cryptocrystalline Quartz (SiO2)
sedimentary
White Quartz
Silicon Dioxide (SiO2)
mineral
Jasper with Quartz Vein
Silicon Dioxide (SiO2)
sedimentary
Agate (or Quartz with Agate banding)
Silicon dioxide (SiO2)
Mineral
Green Tourmaline (Verdelite)
Tourmaline Group; often Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) or Dravite (NaMg3Al6(BO3)3Si6O18(OH)4)
Mineral
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Pink Sapphire (Corundum)
Aluminum Oxide (Al2O3) with Chromium/Iron impurities
gemstone
Gneiss (specifically a Granitic Gneiss)
Gneiss (typically composed of Quartz, Feldspar, and Mica/Amphiboles)
metamorphic
Dark volcanic sand / basaltic sand
Basalt-derived lithic sand, chiefly plagioclase, pyroxene, and volcanic glass
igneous
Flint
Silicon dioxide (SiO2)
sedimentary
Polished greenstone (likely serpentinite)
Serpentinite, chiefly antigorite/lizardite Mg₃Si₂O₅(OH)₄, possibly with magnetite
metamorphic
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Green Quartz (likely Aventurine or Prasiolite)
Silicon Dioxide (SiO2) with inclusions
mineral
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Aventurine
Silicon Dioxide (SiO2) with inclusions
mineral
Quartz (Pink/Rose or Hematinoid Quartz)
Silicon Dioxide (SiO2)
mineral
Granite
Granite (a phaneritic intrusive igneous rock)
igneous
Petrified Wood
Silicified Wood (SiO2 - Quartz/Chalcendony replacing organic matter)
sedimentary
Quartz (Microcrystalline/Chert)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Dalmatian Jasper
Microcrystalline Quartz with Arfvedsonite/Tourmaline inclusions
igneous
Copper Ore with Chrysocolla/Malachite
Hydrated copper phyllosilicate (Chrysocolla) / Copper carbonate hydroxide (Malachite)
mineral
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
mineral
Basalt with Epidote (Greenstone)
Epidote-bearing Metabasalt
metamorphic
Schist
Mica Schist (Group of medium-grade metamorphic rocks)
metamorphic
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Tumbled blue stone, likely blue aventurine or dyed quartzite
Quartz (SiO₂), likely with inclusions or artificial dye; exact identification requires testing
mineral
Banded Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Picture Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Quartz (Pebble)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Smoky Quartz (SiO2)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper Variant likely)
Silicon Dioxide (SiO2)
Sedimentary Rock or Mineral (depending on origin and purity)