Gypsum (Desert Rose or Selenite variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Category
Browse mineral (evaporite) specimens identified by the Rock Identifier community.
Gypsum (Desert Rose or Selenite variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Selenite
Gypsum (CaSO4·2H2O)
Ulexite
NaCaB5O6(OH)6·5H2O
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
Satin Spar Selenite
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Selenite Gypsum
Hydrous calcium sulfate (CaSO4·2H2O)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Sulfur
Native Sulfur (S)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Howlite
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Peach Selenite
Gypsum (Hydrated Calcium Sulfate, CaSO4·2H2O)
Celestite
Celestine (SrSO4)
Pink halite (pink rock salt)
Halite, sodium chloride (NaCl)
Howlite
Ca2B5SiO9(OH)5
Satin Spar (Gypsum variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Gypsum Wallboard (Drywall)
Hydrous calcium sulfate (CaSO4·2H2O)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Barite Rose
Barium Sulfate (BaSO4)
White howlite (likely small tumbled pieces)
Howlite, Ca₂B₅SiO₉(OH)₅
Selenite
Gypsum (CaSO4·2H2O)
Howlite and Purpurite druzy
Calcium Borosilicate Hydroxide (Howlite) and Manganese Phosphate (Purpurite)
Satin Spar (Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Satin Spar (Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Celestite
Celestine (SrSO4)
Orange-yellow mineral fragment (possibly sulfur)
Unidentified; color suggests native sulfur (S), but the image is insufficient for confident identification
Gypsum (Satin Spar / Alabaster variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Blue Celestite
Strontium Sulfate (SrSO4)
White Howlite
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Halite
Sodium Chloride (NaCl)
Halite
Sodium Chloride (NaCl)
Pink Halite
Sodium Chloride (NaCl)
Dyed Selenite
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Barite
Barium Sulfate (BaSO4)
Himalayan Salt / Halite
Sodium Chloride (NaCl)
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Halite
Sodium Chloride (NaCl)
Halite
Sodium Chloride (NaCl)
Gypsum (Satin Spar variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Satin Spar (often marketed as Selenite)
Fibrous Gypsum (CaSO4·2H2O)
Halite
Sodium Chloride (NaCl)
Potash (Sylvite/Potassium Feldspar)
Potassium chloride (KCl) or Orthoclase (KAlSi3O8)
Blue Calcite
Calcium Carbonate (CaCO3)