Reproduced courtesy of
Museum of NAture
© Douglas Merson
Manganokhomyakovite is one of 3 new members of the eudialyte group from Mont Saint-Hilaire. It is more common than khomyakovite having been identified recently on several specimens sent in from collectors. It was originally collected by László and Elsa Horváth in 1976. It is non-fluorescent and brittle.
More information on the find is available on the Canadian Museum of Nature article on manganokhomyakovite and new eudialyte group.
Color ranges from orange to orange-red.
Luster is vitreous.
Diaphaneity is transparent to translucent.
Crystal System is trigonal;
Crystal Habits include pseudo-octahedral crystals to 5mm.
Cleavage is not present.
Fracture is uneven.
Hardness is 2 – 3.
Specific Gravity is approximately 3.13 g/cm
Streak is white.
Associated Minerals include aegirine, albite, analcime, annite, cerussite,
galena, kupletskite, microcline, molybdenite, natrolite, pyrite, pyrrhotite,
sodalite, sphalerite, titanite, wöhlerite and zircon.
Distinguishing Features: Requires analysis for confirmation.
Origin: Named in 1999 for its manganese content and relation
CanMin 37:0893-0899 (1999)
DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE: