Celestine (or Celestite)
Strontium sulfate (SrSO4)
mineral
Category
Sedimentary Or Metamorphic Derived
Browse sedimentary or metamorphic derived specimens identified by the Rock Identifier community.
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Mineral (Variety of Quartz)
Nobby Hematite (Iron Ore)
Hematite (Fe2O3)
mineral
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Kyanite
Kyanite (Al2SiO5)
mineral
Black Star Diopside (beads)
Diopside (CaMgSi2O6) - a member of the pyroxene group
Mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
sedimentary
Green Chalcedony (likely Green Agate or Chrysoprase)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Mineral
Green Aventurine
Silicon Dioxide (Quartz) with inclusions (SiO₂)
Mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Red Jasper
Silicon Dioxide with Iron Oxide (SiO2)
sedimentary
Pebble (likely a type of sandstone or quartzite pebble)
Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.
Sedimentary rock
Red Jasper
Silicon dioxide (SiO2) with iron oxide (Hematite) inclusions
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Sedimentary
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Specular Hematite Geode/Nodule
Specularite (Polycrystalline Hematite), Fe2O3
mineral
Quartz (River Pebble)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Ammonite Fossil
Ammonoidea (Calcium carbonate - CaCO3)
sedimentary
Botryoidal Chalcedony Geode
Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz
mineral
Carnelian
Carnelian (Silica, SiO2)
mineral
Chalcedony
Silicon dioxide (SiO2) - Microcrystalline quartz
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Botryoidal Chalcedony (Desert Rose / Agate)
Silicon Dioxide (SiO₂)
Mineral variant
Celestite
Celestine (Strontium Sulfate, SrSO4)
mineral
Mookaite (Mookaite Jasper)
Silicified Radiolarite (SiO2 with iron oxides)
sedimentary
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with impurities
sedimentary
Jasper (Red/Brown Variety)
Jasper (Microcrystalline Quartz, SiO2)
sedimentary
Jasper with Iron Staining
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
sedimentary
Yellow Jasper
Chalcedony (SiO2 with iron impurities)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Jasper
Jasper (Silicate - SiO2)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Green Jasper
Jasper (Silicates, SiO2)
sedimentary
Laterite
Laterite (Iron and aluminum-rich residual rock)
sedimentary
Blue Chalcedony
Chalcedony (Silicon Dioxide, SiO2)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral