Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Mineral, Jewelry
Category
Anthropogenic Sedimentary (Man Made)
Browse anthropogenic sedimentary (man made) specimens identified by the Rock Identifier community.
Learn about Anthropogenic Sedimentary (Man Made) in the encyclopedia
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Diamond
C (Pure Carbon)
gemstone
Tumbled greenstone, likely nephrite jade
Nephrite jade (interlocking tremolite–actinolite amphibole; Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂)
metamorphic
Peanut Wood
Petrified Wood (Silicified Araucaria with Teredo boreholes)
fossil
Granodiorite
Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)
igneous
Obsidian
Obsidian (Volcanic Glass)
igneous
Amethyst
Amethyst (Silicon Dioxide - SiO2 with Iron impurities)
mineral
Diamond
Diamond (Pure Carbon, C)
mineral
Petoskey Stone
Hexagonaria percarinata
fossil
Porphyry
Porphyritic Igneous Rock
igneous
Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
metamorphic
Slate
Slate (Foliated Metamorphic Rock)
metamorphic
Diamond
Carbon (C)
gemstone
Diabase (Dolerite)
Diabase
igneous
Diamond
Carbon (C)
mineral
Diamond
Carbon (C)
mineral
Rough Diamond
Diamond (pure Carbon, C)
mineral
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
mineral
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Quartz (Pebble)
Quartz (SiO₂)
Mineral
Diabase (Greenstone)
Diabase (Dolerite)
igneous
Pallasite Meteorite
Pallasite (Stony-Iron Meteorite)
meteorite
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Lapis Lazuli
Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2
Metamorphic rock
Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)
Chalcedony (SiO₂)
Mineral (or mineraloid if microcrystalline)
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Basalt
Basalt (containing plagioclase, pyroxene, and olivine)
igneous
Tumbled epidote-bearing rock (likely epidote–quartz–feldspar aggregate)
Epidote-rich metamorphic rock; minerals likely epidote (Ca₂(Al,Fe)₃Si₃O₁₂(OH), quartz, feldspar, and dark amphibole/biotite)
metamorphic
Limonite (Iron Ore)
Hydrous Iron Oxide (goethite, lepidocrocite)
Mineral
Quartzite
Quartzite (Metamorphic Quartz Sandstone)
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Sand Tiger Shark Tooth (Fossil)
Carcharias taurus (fossilized dentin/enameloid)
fossil
Nephrite Jade
Ca2(Mg,Fe)5Si8O22(OH)2
metamorphic
Crinoid Columnal Fossil in Chert
Crinoidea stemming section in Microcrystalline Quartz (SiO2)
fossil
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Diabase (Dolerite)
Diabase or Dolerite
igneous
Pearl
Pearl (Calcium Carbonate with organic conchiolin, CaCO3)
mineral
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8) with Albite inclusions
mineral
Diorite
Phaneritic Intrusive Igneous Rock (composed of Plagioclase feldspar, Hornblende, and Biotite)
igneous
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Diamond
Diamond (pure Carbon, C)
mineral
Silver (Jewelry form)
Native Silver (Ag)
mineral