Pegmatite
Granitic Pegmatite
igneous
Category
Mineral, Jewelry
Browse mineral, jewelry specimens identified by the Rock Identifier community.
Amber / Copal
Succinite (fossilized tree resin)
mineraloid
Sandstone
Sandstone (various mineral compositions)
Sedimentary
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Gold Sheen Obsidian
Volcanic Glass (SiO2 + Fe3O4 / Gas Inclusions)
igneous
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Chert (Jasper)
Microcrystalline Quartz (SiO2) with Iron Oxide impurities
sedimentary
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
mineraloid (man-made)
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
mineral
Hematite (Oolitic or Earthy variety)
Iron(III) oxide (Fe2O3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Diamond
C (Carbon)
mineral
Serpentinite
Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
metamorphic
Green Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Turquoise (likely stabilized or Howlite/Magnesite imitation)
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Banded Calcite (often sold as Caribbean Calcite or Pink Calcite)
Calcium Carbonate (CaCO3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Pearl
Aragonite / Calcium Carbonate (CaCO3)
mineral
Sunstone
Oligoclase or Andesine (Feldspar Group), (Ca,Na)((Al,Si)4O8)
mineral
Pearl
Calcium Carbonate (CaCO3) with Conchiolin
mineral
Pearl
Calcium Carbonate (Aragonite) - CaCO3
mineral
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Druzy Agate (Star-cut Geode Slice)
Silicon Dioxide (SiO2) - Microcrystalline and Macrocrystalline Quartz
mineral
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Mineral
Smoky Quartz
Silicon Dioxide (SiO₂)
mineral
Bloodstone (Heliotrope)
Silicon dioxide (SiO2) with Hematite inclusions
mineral
Blue Lace Agate
Silicon dioxide (SiO2) - Chalcedony variety
mineral
Dyed Agate
Silicon Dioxide (SiO2) with artificial pigment
mineral
Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO2)
mineral
Citrine
Yellow Quartz (SiO2)
mineral
Blue Agate (Dyed)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Gold Nugget
Native Gold (Au)
mineral
Malachite
Malachite (Cu2CO3(OH)2)
mineral
Cubic Zirconia
Zirconium dioxide (ZrO2)
mineral
Rough Diamond
Diamond (pure Carbon, C)
mineral
Pearl
Calcium Carbonate (Aragonite) - CaCO3
mineral