Yellow Quartz (Citrine appearance)
Silicon Dioxide (SiO2)
Category
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
Yellow Quartz (Citrine appearance)
Silicon Dioxide (SiO2)
Chalcopyrite
Chalcopyrite (CuFeS2)
Gold Nugget
Native Gold (Au)
Blue Sapphire (Tumbled/Polished)
Corundum (Al2O3)
Malachite and Azurite on Gossan (Ironstone Matrix)
Cu2CO3(OH)2 (Malachite) on FeO(OH)·nH2O (Limonite/Gossan)
Milky Quartz
Quartz (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Azurite
Azurite - Copper Carbonate Hydroxide [Cu3(CO3)2(OH)2]
Orthoclase Feldspar
Orthoclase (KAlSi₃O₈)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Pink Granite
Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)
Quartz in Matrix (possibly Basalt or Siltstone host)
Silicon Dioxide (SiO2) in Host Rock
Basalt
Basalt (dominated by Plagioclase Feldspar and Pyroxene)
Pink Tourmaline (Rubellite) in Lepidolite
Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4) in Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Granite
Granite (Phaneritic Quartz-Feldspar Igneous Rock)
Diabase
Diabase (also known as Dolerite)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Quartz Vein in Host Rock (Gabbro or Basalt)
Silicon Dioxide (SiO2) with Mafic Silicates
Scoria
Vesicular Basalt / Scoria (Mafic volcanic rock)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within metamorphic/igneous matrix
Limonite (Iron Ore/Bog Iron)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Basalt
Basalt (Aphanitic-fine grained mafic igneous rock)
Green Aventurine
Aventurine (Silicon dioxide, SiO₂)
Citrine
Silicon Dioxide (SiO2) - Macrocrystalline Quartz variety
Milky Quartz
Silicon Dioxide (SiO2)
Chrysocolla and Azurite on Matrix
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4 (Chrysocolla) and Copper carbonate hydroxide Cu3(CO3)2(OH)2 (Azurite)
Ferruginous Quartz (Iron-Stained Quartz)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Lapis Lazuli
Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite and other associated minerals)
Peridotite
Ultramafic intrusive rock (Peridotite)
Botryoidal Malachite
Malachite - Cu2CO3(OH)2
Zircon
Zirconium Silicate (ZrSiO₄)
Milky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Cubic Zirconia (in Jewelry)
Zirconium Dioxide (ZrO2)
Orthoclase Feldspar (or K-Feldspar)
Orthoclase (KAlSi3O8)
Quartz (beads)
SiO2 (Silicon Dioxide)
Milky Quartz
Quartz (SiO₂)
Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate)
N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
Scoria (Lava Rock)
Scoria
Slag
Metallurgical by-product