Sedimentary (If Natural Jasper) Or Artificial (If Slag)

Ruby Zoisite

Anyolite (Calcium aluminium silicate with Chromium/Corundum inclusions)

Iron-stained chert or jasper pebble

Microcrystalline quartz (SiO₂), likely hematite/goethite-bearing

Jasper River Stone

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Green Jasper

Jasper (Silicates, SiO2)

Limonite Ironstone

Goethite-Limonite concretion / Iron oxide

Limonite with Quartz

Hydrated Iron Oxide Hydroxide with Silicon Dioxide (FeO(OH)·nH2O + SiO2)

Limonite Nugget

Limonite (Hydrated iron oxide-hydroxide, FeO(OH)·nH2O)

Red Jasper

Silicon Dioxide (SiO2), microcrystalline quartz with iron oxide inclusions

Jasper

Silica (SiO2) with impurities

Limonite

FeO(OH)·n(H2O)

Generic Rock Fragment

Rock Fragment

Conglomerate

Conglomerate

Pebble

Lithic fragment / Weathered rock fragment

Jasper and Quartz Breccia

Silica breccia (SiO2)

Chert (Jasper variety)

Microcrystalline Quartz (SiO2)

Red Jasper

Jasper (a variety of Chalcedony, SiO₂)

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation

SiO2 (if Quartz), ZrO2 (if Cubic Zirconia)

Yellow Jasper with Red Inclusion

Silicon Dioxide (SiO2) with Iron Oxides

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Jasper or Agate (Chalcedony)

Silicon Dioxide (SiO2) with impurities

Red Jasper with Fossils

Silicified Fossiliferous Jasper (Chert variant, SiO2)

Yellow Jasper

Chalcedony (Silicon Dioxide with Iron inclusions), SiO2

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Jasper (var. Ocean or Polychrome Jasper)

Silicon Dioxide (SiO2) with iron and mineral inclusions

Jasper with Epidote Vein

Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))

Chert (Jasper and Chalcedony)

Silicon Dioxide (SiO2)

Yellow Jasper

Silicon Dioxide (SiO2)

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Sandstone

Arenite

Red Jasper

Silicon Dioxide (SiO2)

Dragon Blood Jasper

Epidote-containing Quartz and Chlorite (SiO2 + (Ca2(Al, Fe)3(SiO4)3(OH)))

Jasper

Silicon Dioxide (SiO2)

Carnelian (red chalcedony), possibly red agate or jasper

Chalcedony, a microcrystalline variety of quartz; silicon dioxide (SiO₂), commonly colored red-orange by iron oxides. The specimen may include opaque jasper or agate zones.

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Jasper Conglomerate (Puddingstone)

Jasper Conglomerate (Siliceous Sedimentary Rock)

Yellow Jasper

Silicon dioxide, SiO2

Sandstone

Sandstone (Quartzose/Feldspathic Sandstone)

Red Jasper

Silicon Dioxide (SiO2) - Microcrystalline Quartz with iron inclusions

Jasper (Sedimentary variety)

Silicon Dioxide (SiO2) with impurities

Green Sandstone Pebble (River/Beach Pebble)

Glauconitic Sandstone