Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Category
Sedimentary Or Mineral
Browse sedimentary or mineral specimens identified by the Rock Identifier community.
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Muscovite
KAl2(AlSi3O10)(OH)2
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Rounded sandstone or quartz-rich sedimentary pebble
Likely quartz arenite/subarkose; exact identification requires testing
sedimentary
Limonite Geode / Ironstone Concretion
Hydrated iron oxide-hydroxide (FeO(OH)·n H2O)
sedimentary
Quartz-veined Sandstone
Sedimentary rock with quartz vein (SiO2)
sedimentary
Ironstone Concretion / Limonite-stained Siltstone
Ironstone (primarily Limonite FeO(OH)·nH2O and Siltstone)
sedimentary
Red Sandstone
Arenite (SiO2 with Fe2O3)
sedimentary
Sandstone
Sedimentary rock composed mainly of sand-sized minerals or rock grains
sedimentary
Banded sandstone pebble
Quartz-rich sandstone, likely iron-oxide- and organic/mineral-stained; exact variety uncertain
sedimentary
Celestite
Celestine (SrSO4)
mineral
Bivalve Seashell Fossil
Class Bivalvia
fossil
Mixed Gemstone and Mineral Collection
Mixed Silica and Carbonate minerals (SiO2, CaSO4·2H2O, etc.)
mineral
Sandstone
Arenite (Clastic Sedimentary Rock)
sedimentary
Weathered rock pebble, possibly quartz-rich sandstone
Uncertain from the image; likely quartz-bearing sandstone with iron-oxide staining
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
mineral
Limonite
FeO(OH)•nH2O
mineral
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Sedimentary Clastic Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone (Heart-shaped pebble)
Sedimentary Quartz Sandstone
sedimentary
Breciated Limestone with Calcite Veins
Sedimentary Breccia (CaCO3)
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
mineral
Hematite
Hematite (Fe2O3)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Shale
Sedimentary pelitic rock
sedimentary
Banded sandstone pebble
Quartz-rich lithic sandstone; exact provenance and composition require testing
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Chert / Agate / Chalcedony)
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Sandstone
Arenite
sedimentary
Shale
Shale (Lutite)
sedimentary
Shark Tooth Fossil
Vertebrate fossilized tooth
fossil
Sandstone
Arenite (primarily composed of SiO2)
sedimentary
Sandstone with Quartz Vein
Arenite with Quartz (SiO2) protrusion
sedimentary
Sandstone (River Cobble / Pebble)
Sedimentary Rock (Quartz Sandstone / Arenite)
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide cement)
sedimentary
Sedimentary Rock with Crafts (Pet Rock)
Sedimentary rock decorated with synthetic materials
sedimentary
Calcite
Calcium Carbonate (CaCO3)
mineral
Limonite
FeO(OH)•nH2O
mineral