Jewelry Gemstones Crystals Minerals Gemstones Fossils Meteorites

Winchite

Formula: ◻{CaNa}{Mg4Al}(Si8O22)(OH)2
The winchite-group minerals are defined as sodium-calcium amphiboles with A(Na+K+ 2Ca)<0.5 apfu and with C(Al+Fe3++2Ti)<1.5 apfu. The W position may contain (OH),F or Cl.
Winchite is defined with
C2+ position: Mg dominant
C3+ position: Al dominant
W position: (OH) dominant.
Color: Cobalt-blue to violet-blue, lavender-gray, gray, colorless
Luster: Vitreous
Hardness: 5 - 6
Specific Gravity: 2.97 - 3.175
Crystal System: Monoclinic
Click here to learn more at Mindat.org
6 products
  • Winchite Specimen. 3g - The Crystal Connoisseurs
    $93.24
    $93.24
    Sold out
  • Winchite Specimen. 2.4g - The Crystal Connoisseurs
    $58.12
    $58.12
    Sold out
  • Winchite Specimen. 2.3g - The Crystal Connoisseurs
    $63.71
    $63.71
    Sold out
  • Winchite Specimen. 2.9g - The Crystal Connoisseurs
    $63.71
    $63.71
    Sold out
  • Winchite Specimen. 4g - The Crystal Connoisseurs
    $72.42
    $72.42
    Sold out
  • Double Terminated Winchite Specimen. 4g - The Crystal Connoisseurs
    $67.94
    $67.94
    Sold out