Sulphur
Sulfur (S)
Category
Browse mineral (evaporite) specimens identified by the Rock Identifier community.
Sulphur
Sulfur (S)
White turquoise (likely howlite)
Howlite, Ca₂B₅SiO₉(OH)₅; visually similar white magnesite is another possibility
Pink halite (rock salt)
Halite (NaCl)
Likely pink-orange halite (rock salt)
Halite (NaCl); identification is provisional from the photograph
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Satin Spar (Selenite)
Calcium sulfate dihydrate (CaSO4·2H2O)
Dyed Howlite
Howlite (Ca2B5SiO9(OH)5)
Celestite (Celestine)
Strontium Sulfate (SrSO4)
White Howlite
Howlite (Calcium borosilicate hydroxide, Ca2B5SiO9(OH)5)
Sulfur Ore
Sulfur (S)
Celestite Geode
Strontium Sulfate (SrSO4)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Satin Spar (Selenite)
Gypsum (CaSO4·2H2O)
Selenite (Gypsum)
Hydrous calcium sulfate (CaSO4·2H2O)
Halite
Sodium chloride (NaCl)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Halite (Rock Salt)
Sodium Chloride (NaCl)
Sulfur
Sulfur (S)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Howlite
Howlite (Calcium borosilicate hydroxide, Ca2B5SiO9(OH)5)
Satin Spar (Satin Spar Selenite)
Gypsum (CaSO4·2H2O)
Satin Spar (often marketed as Selenite)
Fibrous Gypsum (CaSO4·2H2O)
Satin Spar (Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Gypsum (Selenite variety)
Calcium sulfate dihydrate (CaSO4·2H2O)
Howlite
Howlite (Ca2B5SiO9(OH)5)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH))
Selenite (gypsum)
Gypsum, CaSO₄·2H₂O; selenite is its transparent to translucent crystalline variety
Celestite
Celestine (SrSO4)
Selenite (Satin Spar)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Turquoise (Dyed Howlite/Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (Target mineral) / Ca2B5SiO9(OH)5 (Actual specimen: Howlite)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Howlite
Ca2B5SiO9(OH)5 (Calcium borosilicate hydroxide)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Blue halite (rock salt)
Halite (NaCl)
Likely sulfur-bearing rock (possibly native sulfur)
Native sulfur (S), though the image alone cannot confirm the specimen’s identity
Howlite
Howlite (Calcium borosilicate hydroxide, Ca2B5SiO9(OH)5)
General Rock and Mineral Collection (Center: Angelite / Blue Anhydrite)
Anhydrite (Calcium Sulfate, CaSO4)
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Selenite (Gypsum Variety)
Hydrous Calcium Sulfate (CaSO4·2H2O)