Crystopedia
IMA mineral species

Charlesite

Ca₆Al₂(SO₄)₂B(OH)₄(OH,O)₁₂·26H₂O

Sulfate mineral.

YellowPinkWhite & Clear

Charlesite specimen
Charlesite3.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCa₆Al₂(SO₄)₂B(OH)₄(OH,O)₁₂·26H₂O
ElementsCa, Al, S, O, B, H
Crystal systemTrigonal
Mohs hardness—
Density—
Streakwhite
Color—
IMA symbolChrl
Nickel–Strunz class7.DG.15

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

🌍 Where it's found

Type locality (where it was first described): Franklin, United States

  • Type locality
  • Notable source / deposit
  • Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.

Learn more