Cuprite
Cuprite (Copper(I) oxide, Cu2O)
Category
Browse man made glass (often grouped with minerals in lapidary) specimens identified by the Rock Identifier community.
Cuprite
Cuprite (Copper(I) oxide, Cu2O)
Iron Slag
Ferrous slag (primarily silicates and oxides of calcium, iron, and magnesium)
Diamond (Cluster Ring)
Carbon (C)
Chert (specifically Jasper or Flint variety)
Cryptocrystalline Quartz (SiO2)
Almandine Garnet
Fe3Al2(SiO4)3
Quartz Pebble
Silicon Dioxide (SiO2)
Vanadinite
Pb5(VO4)3Cl
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
Chert
Microcrystalline Quartz (SiO2)
Quartz Druzy on Matrix (with Copper Mineralization)
Silicon Dioxide (SiO2) with Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·n H2O)
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
River Quartzite Slik
Quartzite (SiO2)
Chert (Flint variety)
Chert (Microcrystalline or Cryptocrystalline Quartz), SiO2
Garnet
Almandine-Pyrope group, X3Y2(SiO4)3
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Slag (Anthropogenic Glass/Iron byproduct)
Ferro-silicate Slag
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Nephrite Jade
Nephrite
Quartz with Mica (Granitic / Pegmatitic Quartz)
Silicon Dioxide (SiO2) with Mica group minerals
Quartz with Iron Oxide
Silicon Dioxide (SiO2)
Echinoidea (Fossil Sea Urchin)
Echinodermata Echinoidea
Red Jasper and Mookaite Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Chalk
Calcium Carbonate (CaCO3)
Biotite / Black Mica
K(Mg,Fe)3(AlSi3O10)(F,OH)2
Quartz Pebble
Silicon Dioxide (SiO2)
Chert / Flint
Chert (varieties include Flint)
Quartz Pebble
Silicon Dioxide (SiO2)
Seraphinite
Clinochlore (a variety of the chlorite group)
Quartz
Silicon Dioxide (SiO2)
Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)
Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
Diorite
Diorite (Plagioclase feldspar and amphibole/biotite)
Goldstone (Red)
Aventurine Glass
Feldspar (Potassium Feldspar / Orthoclase)
KAlSi3O8 (Potassium Aluminum Silicate)
Tiger's Eye (Mineral Collection)
Tiger's Eye (SiO2 with crocidolite inclusions)
Serpentine
Serpentine Group (Mg3Si2O5(OH)4)
Black Obsidian
Obsidian (Volcanic Glass, SiO2 + impurities)
Garnet-bearing Schist
Almandine Garnet [Fe3Al2(SiO4)3] in Micaceous Schist
Vanadinite
Pb5(VO4)3Cl
Aragonite
Aragonite (Calcium Carbonate - CaCO3)