Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Category
Browse sedimentary or metamorphic derived specimens identified by the Rock Identifier community.
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
River Stone (Grey Andesite)
Intermediate extrusive volcanic rock (Andesite)
Diamond
Carbon (C)
Lake Superior Agate
Silicon Dioxide (Cryptocrystalline Quartz), SiO2
Fluorite (Green)
Calcium Fluoride (CaF2)
Diamond (Cut jewelry specimen)
Diamond (pure Carbon, C)
Amygdaloidal Basalt
Basalt with secondary amygdule minerals (likely Epidote or Chlorite)
Fluorite
Fluorite (Calcium Fluoride, CaF2)
Amber
Amber (Amorphous Organic Hydrocarbon)
Porphyritic Andesite
Andesite (Intermediate Extrusive Volcanic Rock)
Astrophyllite
Astrophyllite (K2NaFe7Ti2Si8O26(OH)4F)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Diamond
Carbon (C)
Andesite
Intermediate Volcanic Rock (Plagioclase-dominant)
Green Fluorite
Calcium Fluoride (CaF2)
Rose Quartz
SiO2 (Silicon Dioxide)
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Clear Quartz Point
Silicon Dioxide (SiO2)
Olivine Diabase (Microgabbro)
Diabase or Dolerite with Olivine
Pink Granite
Granite (Phaneritic igneous rock)
Carnelian
Carnelian (Silica, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
Carnelian Agate
Silicon Dioxide (SiO2) with Ferric Oxide inclusions
Vanadinite on Matrix
Vanadinite (Pb5(VO4)3Cl)
Carnelian
Carnelian (variety of Chalcedony, SiO2)
Pink Granite
Granite (Phaneritic igneous rock rich in Orthoclase)
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)
Fluorite with Quartz
Fluorite (CaF2) and Quartz (SiO2)
Chatoyant Quartz (Cat's Eye Quartz)
Silicon Dioxide (SiO2) with fibrous inclusions of Amphibole or Rutile
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Yellow Jasper
Silicon Dioxide (SiO2) with Ferric Hydroxide impurities
Pink Granite
Granite (Phaneritic Igneous Rock)
Porphyritic Andesite
Andesite (porphyritic variety)
Clear Quartz
Silicon Dioxide (SiO2)
Amber
Succinite
Peridotite (Dunite)
Peridotite (mostly Olivine: (Mg,Fe)2SiO4)
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Rose Quartz
SiO2 (Silicon Dioxide with trace inclusions of dumortierite)