Yellow Jasper
Cryptocrystalline Quartz (SiO2 with iron oxide inclusions)
Category
Browse organic gem material (botanical) specimens identified by the Rock Identifier community.
Yellow Jasper
Cryptocrystalline Quartz (SiO2 with iron oxide inclusions)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Amethyst (Quartz)
Silicon Dioxide with Iron impurities (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Silicon dioxide (SiO2) with impurities
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Smoky Quartz
Silicon Dioxide (SiO2) with trace aluminum and irradiation
Jasper (specifically Yellow or Bumblebee-like Jasper)
Silicon Dioxide (SiO2) with impurities
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Lake Superior Agate
Silicon Dioxide (SiO2) with iron impurities
Lake Superior Agate
Silicon Dioxide (SiO2)
Jasper (specifically Bloodstone/Heliotrope or Dark Green Jasper)
Cryptocrystalline Quartz (SiO2) with inclusions
Fossilized Gastropod in Chert/Limestone
Internal mold of Gastropoda (Class) with CaCO3 or SiO2 mineral formula
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
Raw Corundum (Sapphire/Ruby variant)
Aluminum oxide (Al2O3)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Ambergris (Geological/Organic Specimen)
Ambra grisea (Produced by Physeter macrocephalus)
Amber (Copal)
Fossilized Tree Resin
Chert (Arrowhead/Tool variety)
Microcrystalline Quartz (SiO2)
Quartz (Float/Abraded)
Quartz (SiO₂)
Yellow Jasper
Jasper (Silicon Dioxide with Iron Hydroxide impurities, SiO2 + FeO(OH))
Chert (specifically Flint or Jasper variant)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
Banded Chert (Ironstone/Jasper)
Cryptocrystalline Quartz (SiO2) with Iron Oxides
Petrified Wood
Silicified Wood (primarily SiO2 - Silicon Dioxide / Chalcedony)
Pegmatite (Granitic)
Granitic Pegmatite
Chert (Brown Chert / Flint)
Silicon Dioxide (SiO2)
Chert (Jasper variety)
Chert (SiO2)
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Jasper (Red-Brown)
Silicon Dioxide (SiO2) with Iron Oxide impurities
Chert (Flint)
Microcrystalline Quartz (SiO2)
Seraphinite
Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8
Chert (Gravel specimen)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Peridot
Olivine (specifically, the gem-quality variety forsterite, (Mg,Fe)2SiO4)
Ironstone Concretion / Limonite Node
Ferruginous Sedimentary Rock (composed primarily of Limonite FeO(OH)·nH2O and Goethite)
Petrified Wood
Silicified Wood (primarily SiO₂ - Silicon Dioxide)
Petrified Wood
Silicified Wood (SiO2)
Coquina
Biogenic Limestone (Calcium Carbonate, CaCO3)
Blue Quartzite (Dyed)
Metamorphosed Quartz-rich Sandstone (SiO2 with organic dye)
Blue Star Sapphire
Corundum (Al2O3)
Aqua Aura Quartz
Silicon Dioxide (SiO2) bonded with Gold (Au)
Fossiliferous Rock (likely Dinosaur Fossil in Matrix)
Permineralized Vertebrate Fossil (Calcium Carbonate/Silica replaced bone material)