Turquoise (Dyed Howlite or Magnesite imitation)
Hydrated phosphate of copper and aluminum / CuAl6(PO4)4(OH)8·4H2O
mineral
Category
Mineral, Jewelry
Browse mineral, jewelry specimens identified by the Rock Identifier community.
Learn about Mineral, Jewelry in the encyclopedia
View all →
Composite Turquoise or Reconstituted Turquoise with Copper inclusions
CuAl6(PO4)4(OH)8·4H2O (Turquoise) mixed with matrix and copper/bronze flakes
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
mineral
Chakra Stone Bracelet (mixed gemstones)
Multi-mineral/Gemstone assembly (primarily Quartz variety beads)
mineral
White Calcite
Calcium Carbonate (CaCO3)
mineral
Tourmalinated Quartz / Tourmaline in Matrix
Silicate mineral group (Schorl / Quartz)
mineral
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Satin Spar (Selenite variant)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
mineral
Gemstone Sand (Mineral Assortment)
Mixed Mineral Concentrates (Commonly including Quartz SiO2, Garnet X3Y2(SiO4)3, and Tourmaline (Na,Ca)(Li,Mg,Al)3(Al,Fe,Mn)6(BO3)3(Si6O18)(OH,F)4)
mineral
Turquoise in Matrix
CuAl6(PO4)4(OH)8·4H2O
gemstone
Smoky Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Rose Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Amazonite
Amazonite (Microcline Feldspar) K(AlSi3O8)
mineral
Diamond (in Gold Jewelry)
Carbon (C)
mineral
Dyed Magnesite (often sold as Red Turquoise or Howlite)
Magnesium Carbonate (MgCO3)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions of Iron Oxide)
metamorphic
Fossilized Shark Tooth
Chondrichthyes tooth
fossil
Fossilized Shark Tooth
Elasmobranchii (Class) fossil
fossil
Blue Dumortierite Quartz
Dumortierite in Quartz (AlAl6BSi3O18)
metamorphic
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
mineral
Pearl (as a biogenic mineral/gemstone)
Calcium Carbonate (mostly Aragonite), CaCO3
mineral
Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
sedimentary
Malachite
Copper carbonate hydroxide, Cu2CO3(OH)2
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Smoky quartz
Quartz (SiO₂), naturally irradiated brown variety
mineral
Weathered gray-green pebble
Indeterminate; possibly altered basalt, serpentinite, or a greenish metamorphic rock
mineral
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Tumbled Tiger's Eye
Silicon dioxide with crocidolite inclusions (SiO2)
mineral
Red Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Herkimer Diamond
Quartz (Silicon Dioxide, SiO2)
mineral
Pyrite in Quartz
Iron Sulfide (FeS2) with Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Pyrite Nodule
Iron Sulfide (FeS2)
mineral
Red Jasper
Microcrystalline Quartz (Chalcedony), SiO2 with iron oxide inclusions
sedimentary
Agate Nodule / Weathered Agate
Silicon Dioxide (Chalcedony / Quartz, SiO2)
sedimentary
Tumbled Ruby
Corundum (Al2O3)
gemstone
Turtle Stone / Septarian Nodule (Water-worn)
Septarian Concretion
sedimentary
Quartz Geode
Silicon dioxide (SiO2)
sedimentary
Petrified Wood
Silicified wood / Xylopal
fossil