Jasper
Silicon dioxide (SiO2)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Jasper
Silicon dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Chert (Flint)
Microcrystalline Quartz (SiO2)
Green Fluorite
Fluorite (Calcium Fluoride) - CaF2
Carnelian Agate
Silicon Dioxide (SiO2)
Amber (Copal)
Fossilized Tree Resin (C10H16O)
Epidote-bearing Granite (Unakite-like)
Epidotized Granite
Pyrite in Quartz
Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Sandstone (Wonderstone)
Silicified Sandstone / Orthoquartzite with Liesegang rings
Coral Fossil (Favosites)
Favosites (Calcite/Calcium Carbonate, CaCO3)
Chert (Lake Superior Agate variant)
Microcrystalline Quartz (SiO2)
Jasper (Iron Oxide Rich)
Silicon Dioxide (SiO2) with Fe2O3 (Hematite/Goethite) inclusions
Chert (often called Flint or Jasper)
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
Jasper with Agate Inclusions
Silicon Dioxide (SiO2)
Jasper
Jasper (Silicate mineral, SiO2)
Chert (Black Chert/Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Arrowhead/Tool Grade)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (Cryptocrystalline variety of Quartz, SiO2)
Marble
Recrystallized Calcite / Dolomite (CaCO3)
Chert (Jasper)
Silicon Dioxide (SiO2) with impurities
Banded Slate (Lithified Mudstone)
Low-grade Metamorphosed Mudstone / Slate
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Druzy Quartz (on Quartzite or Chert)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Herkimer Diamond
Quartz (Silica - SiO2)
Milky Quartz (Druzy Geode fragment)
Silicon Dioxide (SiO2)
Brachiopod Fossil (Spiriferid)
Order Spiriferida (Phylum Brachiopoda); mineralized as Calcite (CaCO3) or Chert (SiO2)
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
Fossiliferous Limestone
CaCO3 (principally Calcite or Aragonite)
Jasper (likely Ocean Jasper or Variegated Jasper)
Silicon Dioxide (SiO2) with impurities
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Red Sandstone
Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)
Chert (Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Laterite
Laterite (Iron/Aluminum-rich oxide)
Chert
Microcrystalline Quartz (SiO2)