Bonshtedtite
Na₃Fe(PO₄)(CO₃)

     Bonshtedtite is a rare species at Mont Saint-Hilaire.

PHYSICAL CHARACTERISTICS:

Color is usually colorless or yellow.
Luster is vitreous to pearly.
Diaphaneity is transparent to translucent.
Crystal System is monoclinic; P2₁/m.
Crystal Habits include tabular plates of crystals and lozenges.
Cleavage {100}, {010} are perfect.
Fracture is (??).
Hardness is 4.
Specific Gravity is approximately 2.95 g/cm³.
Streak is white.
Associated Minerals include bradleyite, burbankite, ilmenite,
   lorenzenite and natrolite. Distinguishing Features: Crystal habits.
Origin: Named in 1982 after Elsa Bohnstedt-Kupletskaya (1894-1974),
   Russian mineralogist.

CLASSIFICATION:

REFERENCES:
Dana 8:958-959 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

Legend