Amethyst
Silicon Dioxide (SiO2) with iron impurities
Category
Browse not a rock (animated character) specimens identified by the Rock Identifier community.
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Amethyst (Faceted)
Silicon Dioxide with Iron impurities (SiO2)
Amethyst
Silicon dioxide with iron impurities (SiO2:Fe3+)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
Carnelian
Carnelian (SiO2 with Iron oxide impurities)
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide - SiO2)
Serpentine
Antigorite / Lizardite / Chrysotile mix; (Mg, Fe)3Si2O5(OH)4
Red Jasper
Jasper (SiO2) with Hematite (Fe2O3) inclusions
Brachiopod Fossil (Spiriferid)
Phylum Brachiopoda, Order Spiriferida (CaCO3 - Calcium Carbonate)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
Hematite
Iron(III) oxide (Fe2O3)
Bumblebee Jasper
Volcanic Tuff (mixture of Quartz, Sulfur, Hematite, and Orpiment)
Chalcedony (Yellow Agate)
Cryptocrystalline Quartz (SiO2)
Moonstone (Orthoclase Feldspar)
(K,Na)AlSi3O8
Pink Quartzite
Quartzite (primarily SiO2)
Basalt
Basalt (extrusive igneous rock)
Agate
Silicon dioxide (SiO2) - variety Chalcedony
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide inclusions
Agate (Bead Form)
Agate (Cryptocrystalline Quartz, SiO2)
Agate / Banded Chalcedony
Agate (Silicon Dioxide / SiO2)
Quartz (Smoky/Grey Variety)
Silicon Dioxide (SiO2)
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Mica Schist
Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)
Chert
Microcrystalline Quartz (SiO2)
Labradorite
Labradorite ((Ca,Na)(Al,Si)4O8)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Dyed Agate
Silicon Dioxide (SiO2) with artificial pigment
Moss Agate
Silicon Dioxide (SiO2) with inclusions
Bauxite
Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)
Drill Core Samples (Varied Lithology)
Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)
Copper Ore with Malachite and Chrysocolla
Cu2CO3(OH)2 (Malachite) with Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla)
Carnelian
Carnelian (a variety of Chalcedony, SiO2) colored by iron oxide
Carnelian
Carnelian (Silicon Dioxide - SiO2)
Quartzite
Quartzite (SiO2 silicon dioxide)
Gneiss
Gneiss
Orbicular Rhyolite (Rainforest Jasper)
Rhyolite containing Spherulites (SiO2 with impurities)
Jasper and Quartzite mix
Silicon Dioxide (SiO2) with impurities
Basalt with Epidote Veining
Basalt (Mafic Extrusive Rock) with Ca2(Al,Fe)3(SiO4)3(OH)
Vesicular Basalt
Vesicular Basalt (Aphanitic Mafic Rock)