Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
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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Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
sedimentary
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Smoky Quartz with Feldspar
Silicon Dioxide (SiO2) with Potassium Feldspar (KAlSi3O8)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Pegmatite with Mica
Granitic Pegmatite (containing Muscovite and Biotite)
igneous
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)
metamorphic
Green Moonstone (Garnierite)
Nickel-bearing Magnesium Silicate (often a mix of Serpentine and Talc/Chlorite groups)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron inclusions
sedimentary
Red Aventurine (Strawberry Quartz / Sunstone Quartz)
Silicon Dioxide with Hematite/Goethite inclusions (SiO2)
mineral
Green Fluorite (likely synthetic or heat-treated for jewelry)
Calcium Fluoride (CaF2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Tumbled Agate and Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Tumbled serpentinite (likely antigorite-rich serpentine)
Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible magnetite, chromite, or brucite
metamorphic
Snowflake Obsidian
Vitreous Volcanic Glass (Siliceous Obsidian with Cristobalite inclusions)
igneous
Agate (Plume/Moss variety)
Cryptocrystalline Quartz (SiO2) with iron/manganese inclusions
mineral
Amethyst Cluster
Silicon Dioxide with Iron impurities (SiO2)
mineral
Prase or Green Quartz
Silicon Dioxide (SiO2 with actinolite or chlorite inclusions)
Mineral
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Iron-stained Quartz (Gossan/Limonite-coated Quartz)
Silicon Dioxide (SiO2) with Hydrated Iron Oxides (FeO(OH)·nH2O)
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Garnet (Almandine/Pyrope)
Silicate Mineral (Group: X3Y2(SiO4)3 where X=Mg, Fe, Mn and Y=Al, Fe, Cr)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Banded Agate (Silk Agate or Maligano Jasper variant)
Silicon Dioxide (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Mica (Muscovite or Biotite)
Sheet silicate mineral group (e.g., KAl2(AlSi3O10)(F,OH)2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Garnet (likely Almandine or Pyrope)
Garnet Group, Nesosilicates (Complex chemistry, e.g., Almandine: Fe3Al2Si3O12)
mineral
Garden Quartz (Lodalite)
Silicon Dioxide (SiO2) with mineral inclusions
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Goethite/Hematite Nodule
Goethite (FeO(OH)) and Hematite (Fe2O3)
mineral
Chrysocolla
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral