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Manganokhomyakovite crystals - click for larger pic
Manganokhomyakovite crystals
Reproduced courtesy of
© Canadian
Museum of NAture

Manganokhomyakovite crystals - click for larger pic
Manganokhomyakovite crystals
© Douglas Merson

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Home > Mineral Descriptions > Manganokhomyakovite (TL) - (2 Photos)



Manganokhomyakovite (Type Locality)
Na12Sr3Ca6Mn3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2

     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.

PHYSICAL CHARACTERISTICS:

Color ranges from orange to orange-red.
Luster is vitreous.
Diaphaneity is transparent to translucent.
Crystal System is trigonal;R3m.
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/cm3.
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
   to khomyakovite.

CLASSIFICATION:

Dana System
# 64.1.1.5

Strunz Classification
# VIII/E.25-70

REFERENCES:
CanMin 37:0893-0899 (1999)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
--

AP
--

MX
--

SS
--

MC
¤¤

HF
--

BR
--

SX
--

FR
--

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