New Jade (Serpentine)
Antigorite / Serpentine group (Mg3Si2O5(OH)4)
metamorphic
Category
Not A Geological Specimen
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Chelyabinsk Meteorite
Ordinary chondrite (LL5)
meteorite
Quartz (Milky/Smoky Crystal fragment)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Macro-crystalline)
Silicon Dioxide (SiO2)
mineral
Amber
Succinite (formula varies, primarily C10H16O)
Mineraloid (Organic)
Feldspar (likely Amazonite or Plagioclase)
Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
![Lapis Lazuli (Na8[Al6Si6O24]S2 (Lazurite component), a rock composed primarily of Lazurite, Calcite, and Pyrite) — metamorphic](https://media.rockidentification.com/f914c118-fe45-4316-a33a-49fa9c50cbe7-thumbnail.jpg)
Lapis Lazuli
Na8[Al6Si6O24]S2 (Lazurite component), a rock composed primarily of Lazurite, Calcite, and Pyrite
metamorphic
Amber
Succinite (Fossilized Tree Resin), C10H16O
Organic Mineraloid
Amber (with potentially inclusions)
Succinite (Fossilized Tree Resin)
Mineraloid
Labradorite (Larvikite variety)
Feldspar (Plagioclase series), (Na,Ca)(Si,Al)4O8
igneous
Fancy Jasper (Agate/Chert mix)
Silicon Dioxide (SiO2) with impurities
sedimentary
Emerald with Matrix (Emerald in Mica Schist)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Limonite (with Pyrite)
Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O
mineral
Hematite
Hematite (Fe2O3)
Mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Mineraloid
Quartz (with Iron staining)
Silicon Dioxide (SiO2)
mineral
Labradorite
(Ca, Na)(Al, Si)4O8
mineral
Agate Geode Slice (with Druzy Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Basalt with Quartz/Calcite Inclusion
Aphanitic Mafic Igneous Rock (Basalt) with SiO2 or CaCO3 vein
igneous
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Fossilized Plant or Tree Bark
Lepidodendron or Sigillaria (example genera)
sedimentary
Peacock Ore (Bornite or Chalcopyrite)
Bornite (Cu5FeS4) or Acid-Washed Chalcopyrite (CuFeS2)
mineral
Natural Pearl
Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3
mineral
Chert (Polished Gemstone / River Stone)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Aquamarine
Beryl (Be3Al2Si6O18), specifically the blue-green variety
Mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
mineral
Quartz (specifically a water-worn Quartzite or Chalcedony pebble)
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2) within a geode
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
mineral
Dyed Agate
SiO2
Mineral
Biotite (Black Mica)
Biotite (K(Mg,Fe++)3AlSi3O10(OH,F)2)
mineral
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Obsidian
Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)
igneous
Greenschist
Chlorite schist
metamorphic
Granitic Pegmatite (with Smoky Quartz and Mica)
Granitic Pegmatite (composed of SiO2, KAl2(AlSi3O10)(OH)2, and (K,Na)(AlSi3O8))
igneous
Chalcedony on Ironstone
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3/FeOOH)
sedimentary