Synchysite

Synchysite specimens for sale

4 for sale · $600–$5,000 USD

47 in the gallery

Synchysite is a carbonate-fluoride mineral that commonly forms prismatic to tabular crystals with a vitreous to silky luster. It often appears in yellow to brown hues, sometimes displaying a subtle pink or green tint in certain crystal environments, and it can form in layered, prismatic aggregates or as individual crystals.

Formula
CaCe(CO3)2F
Rarity
Common
Stability
Stable
Collector interest
Moderate Interest
Classification notes
Carbonate, fluorocarbonate; Strunz 5.BD bastnäsite-synchysite group

Key characteristics

Crystal system
monoclinic
Mohs hardness
4.5
Specific gravity
3.9–4
Luster
vitreous, greasy, pearly
Transparency
transparent, translucent
Color
colorless, white, gray, yellow, brown, red, green
Streak
white
Cleavage
perfect
Fracture
uneven
Crystal habit
tabular, prismatic, granular, massive

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Where Synchysite is found

Top localities

  1. Zagi Mountain9 specimens
  2. Trimouns6 specimens
  3. Wanni glacier - Scherbadung area4 specimens
  4. Furka basis tunnel1 specimen
  5. Kaiserer quarry1 specimen
  6. Poudrette Quarry1 specimen
  7. Southern Region1 specimen

About Synchysite

Notable localities include Pakistan and Switzerland, where high-quality crystals have attracted collectors for their transparency, color, and delicate habit. The mineral also occurs in other classic European and North American locales, producing specimens that range from pale needles to larger, more robust crystals embedded in calcium-rich rocks. Fine examples are prized for their luster, hexagonal prism faces, and the way light interacts with the crystal structure.

Collectors value synchysite for its relative rarity among carbonate minerals and for the visual appeal of well-formed crystals. The occurrence of distinct zoning or zoning-related color variation can add interest, and specimens from classic mining districts often tell a geological story through their association with other rare minerals. For cabinet drawers and display cases, synchysite offers bright, attractive colors and a memorable crystal habit that appeals to mineral enthusiasts seeking visually engaging pieces.