Rhodonite
Rhodonite (MnSiO3)
mineral
Category
This Appears To Be A Man Made Metallic Object, Likely Jewelry, Not A Natural Rock, Mineral, Or Geological Specimen.
Browse this appears to be a man made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen. specimens identified by the Rock Identifier community.
Amethyst
Silicon Dioxide with Iron impurities (SiO2)
mineral
Blue Chalcedony and Picture Jasper Beads
Blue Chalcedony (SiO2), Picture Jasper (SiO2)
Mineral
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Mineral
Gold Nugget
Native Gold (Au)
mineral
Sandstone
Arenite (SiO2 based with mineral cement)
sedimentary
Shale
Shale (composition varies: primarily clay minerals and quartz)
sedimentary
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Green Tourmaline
Verdelite (Silicate mineral); Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
mineral
Pallasite Meteorite
Pallasite (Stony-iron meteorite; Fe-Ni alloy with (Mg,Fe)2SiO4 olivine)
Mineral/Extraterrestrial Rock
Amethyst Geode/Cluster
Quartz (SiO2) - variety Amethyst
Mineral
Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various metal oxide impurities
Man-made material (Anthro-lithic product)
Quartz (Specifically Clear to Smoky Quartz point)
Silicon Dioxide (SiO2)
mineral
Garnet (likely Pyrope or Almandine)
Garnet Group (complex nesosilicate minerals, e.g., Pyrope Mg3Al2(SiO4)3, Almandine Fe3Al2(SiO4)3, Spessartine Mn3Al2(SiO4)3, Grossular Ca3Al2(SiO4)3, Andradite Ca3Fe2(SiO4)3, Uvarovite Ca3Cr2(SiO4)3). The vivid red color in the image strongly suggests Pyrope or Almandine.
Mineral
Amazonite
Potassium Feldspar (KAlSi3O8)
mineral
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
mineral
Milky Quartz (Druzy Geode fragment)
Silicon Dioxide (SiO2)
mineral
Red Garnet
Garnet Group (e.g., Pyrope, Almandine, Spessartine, Grossular, Andradite, Uvarovite)
Mineral
Specular Hematite
Specularite (Fe2O3)
mineral
Cuprite
Cuprite (Copper(I) oxide, Cu2O)
mineral
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Milky Quartz with inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Botryoidal Hematite (Iron Stone Conglomerate)
Hematite (Fe2O3) in sedimentary matrix
sedimentary
Sandstone (Quartz-rich)
Arenite (SiO2 based)
sedimentary
River Rocks (Polished River Pebbles)
Stream-rounded clastic sediments
Mixed (Sedimentary, Igneous, and Metamorphic)
Fossil Shell (Bivalve)
Class Bivalvia (Likely a member of the Ostreidae or Gryphaeidae family), CaCO3
sedimentary
Yellow Quartz (Rough)
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Arkosic)
Clastic Sedimentary Rock (Sandstone)
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Red Jasper or Chert
Jasper (SiO2, a variety of chalcedony with iron oxide impurities), Chert (SiO2)
sedimentary
Calcite
Calcite (Mineral; CaCO₃)
Mineral
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2 - a variety of actinolite, an amphibole mineral); Jadeite (Na(Al,Fe3+)Si2O6 - a pyroxene mineral)
Metamorphic rock (for both Nephrite and Jadeite)
Milky Quartz (with Iron staining)
Silicon Dioxide (SiO2)
mineral
Fulgurite
Fulgurite (Lechatelierite), amorphous SiO2
metamorphic
Petrified Wood
Silicified Wood (SiO2 - Silicon Dioxide)
sedimentary
Moqui Marble (Iron Oxide Concretion)
Iron Oxide Concretion (primarily Limonite/Hematite around a Sandstone center)
sedimentary
Basalt with Olivine inclusion
Mafic Volcanic Basalt (Fe,Mg)2SiO4
igneous
Mica Schist
Mica Schist (primarily Muscovite and Quartz)
metamorphic
Basalt
Basalt
Igneous
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Biotite (Black Mica)
Biotite - K(Mg,Fe)3(AlSi3O10)(OH)2
mineral