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Manganotychite
Na6(Mn,Fe,Mg)2(CO3)4(SO4)

     Manganotychite is another rare species from MSH.

PHYSICAL CHARACTERISTICS:

Color is usually pale pink.
Luster is vitreous.
Diaphaneity is transparent to translucent.
Crystal System is isometric; Fd3.
Crystal Habits include blocky crystals.
Cleavage none.
Fracture is conchoidal.
Hardness is 4.
Specific Gravity is approximately 2.7 g/cm3.
Streak is white.
Associated Minerals include analcime, catapleiite, petersenite,
   shortite and trona.
Distinguishing Features: Crystal habit and color.
Origin: Named in 1990 to reflect its composition: the manganian
   analog of tychite and ferrotychite.

CLASSIFICATION:

Dana System
# 17.1.1.3

Strunz Classification
# V/C.03-25

REFERENCES:
Dana 8:519-520 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
--

AP
--

MX
--

SS
--

MC
--

HF
--

BR
--

SX
¤¤

FR
--

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