Creedite

Creedite specimens for sale

32 for sale · $168–$4,000 USD

242 in the gallery

Creedite is a calcium sulfofluoride mineral that forms colorless to vibrant orange to lemon-yellow crystals in hydrothermal veins and cavities. It commonly displays elongated, prismatic habits with a glassy to vitreous luster and often occurs as small, well-formed crystals embedded in matrix. The mineral is associated with secondary uranium and rare earth element minerals in Mexican deposits, and abundant specimens have come from notable localities in Kazakhstan, China, the United States, and Bolivia, making it a familiar sight among sulfide and fluoride assemblages. Collectors value creedite for its bright, saturated hues and the way it fluoresces under UV light in some samples, as well as its rarity in certain colors and crystal forms.

Formula
Ca3SO4Al2F8(OH)2 · 2H2O
Rarity
Rare
Stability
Stable
Collector interest
Very High Interest
Classification notes
Calcium aluminum sulfate fluoride hydrate mineral

Key characteristics

Crystal system
monoclinic
Mohs hardness
3.5–4
Specific gravity
2.7–2.73
Luster
vitreous
Transparency
transparent, translucent
Color
colorless, white, gray, orange, violet
Streak
white
Cleavage
perfect
Fracture
conchoidal, uneven
Crystal habit
prismatic, acicular, radiating, granular, massive
  • Classic / historic

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Where Creedite is found

Top localities

  1. Akchatau Mine26 specimens
  2. West Camp15 specimens
  3. Santa Eulalia Mining District9 specimens
  4. Qinglong Mine7 specimens
  5. Potosí Mine4 specimens
  6. Navidad Mine2 specimens
  7. Copper Stope1 specimen
  8. Dachang ore field1 specimen
  9. Durango1 specimen
  10. Nevada1 specimen

About Creedite

For many collectors, creedite represents a rewarding challenge due to its tendency to form delicate, prismatic crystals that can be sparse on matrix. Specimens from classic Mexican and Kazakh mines are especially sought after for their clarity and geometric outlines. The mineral’s playful color range and the technical interest of its hydrothermal formation add to its appeal, making creedite a preferred piece for display cabinets and mineral study alike.