Limonite with Hematite
Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)
Category
Browse man made byproduct (non geological) specimens identified by the Rock Identifier community.
Limonite with Hematite
Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Granite
Granite (Felsic Plutonic Rock)
Chert (specifically Flint or Common Chert node)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone
Arenite (primarily SiO2)
Clear Quartz
Silicon Dioxide (SiO2) / Rock Crystal
Quartz (Crystal Cluster)
Silicon Dioxide (SiO2)
Granite
Phaneritic plutonic rock (Quartz + Feldspar + Mica)
Zirconia (Ceramic) & Ion-X Glass
Zirconium Dioxide (ZrO2) and Ion-strengthened Aluminosilicate Glass
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz
SiO2 (Silicon Dioxide)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Chert (Arrowhead/Tool variety)
Microcrystalline Quartz (SiO2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Clear Quartz (Crystal Quartz)
Silicon Dioxide (SiO2)
Chert (variations include Flint/Jasper)
Cryptocrystalline Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Silver (Sterling Silver)
Argentum (Ag) mixed with Copper (Cu); Formula: Ag+Cu
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Dendritic Agate (Tumbled)
Silicon Dioxide (SiO2) with inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Granite
Plutonic felsic igneous rock
Granite
Granite (Felsic Plutonic Rock)
Milky Quartz (Water-worn Pebble)
Silicon Dioxide (SiO2)
Quartz (Milky or Iron-Stained)
Silicon Dioxide (SiO2)
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide with Iron Oxide (SiO2 with traces of Fe2O3/FeO(OH))
Jasper-Agate Breccia
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartz (Milky/Vein Quartz)
Silicon Dioxide (SiO2)
Rugose Coral (Horn Coral)
Order Rugosa (extinct fossilized coral)
Red Jasper
Silicon dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Feldspar
Potassium Feldspar (KAlSi3O8)
Fluorite
Fluorite (Calcium Fluoride - CaF2)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz with Fe2O3 staining)
Fluorite
Calcium Fluoride (CaF2)
Rutilated Quartz (likely Citrine or Smoky Quartz with Rutile inclusions)
SiO2 with TiO2 inclusions (Quartz with Rutile)
Diamond in Gold Setting
Diamond (C - pure carbon)