Celestite (Celestine) Druze on Agate/Host Rock
Strontium sulfate (SrSO4)
mineral
Category
Mineral, Often Found In Sedimentary Deposits
Browse mineral, often found in sedimentary deposits specimens identified by the Rock Identifier community.
Learn about Mineral, Often Found In Sedimentary Deposits in the encyclopedia
View all →
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Limonite (with Goethite/Hematite glaze)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Geode Nodule Fragment
Quartz / Chalcedony Nodule
sedimentary
Howlite
Howlite (Calcium Borosilicate Hydroxide: Ca2B5SiO9(OH)5)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz / Chalcedony
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Petrified Wood
Silicified Wood (primarily Quartz/SiO2)
mineral
Satin Spar Selenite
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite inclusions
sedimentary
Red Jasper (or Banded Jasper)
Silicon Dioxide (SiO2 with Hematite impurities)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Jasper
Microcrystalline Quartz (SiO2)
Sedimentary/Mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Limonite Geode / Ironstone Concretion with Quartz
Limonite with Quartz (FeO(OH)·nH2O + SiO2)
sedimentary
Bauxite
Bauxite (mixture of Hydrous Aluminum Oxides)
sedimentary
Pink Calcite
Calcium Carbonate (CaCO3)
mineral
Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Limonite (Yellow Ochre)
Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)
mineral
Chert (often called Flint in archaeological contexts)
Microcrystalline or cryptocrystalline Silica (SiO2)
sedimentary
Limonite (Iron Ore)
Limonite (mixture of hydrated iron(III) oxide-hydroxides)
Mineral
Fossilized Bone Fragment
Permineralized Vertebrate Bone (Hydrox yapatite replaced by Silica or Calcite)
sedimentary
Jasper with Quartz Vein
Silicon Dioxide (SiO2) with impurities
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Jasper (Iron-stained)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Fluorite on Matrix
Calcium Fluoride (CaF2)
mineral
Satin Spar (Gypsum variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
mineral
Red Jasper
Microcrystalline quartz, SiO2
sedimentary
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Galena
Lead(II) sulfide (PbS)
mineral
Emerald
Beryl (Be₃Al₂(SiO₃)‑₆) with Chromium/Vanadium impurities
mineral
Chert (Flint)
Chert (SiO2)
sedimentary
Agate (Chert/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
gemstone