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Nordite-(Ce)
(Ce,La,Ca)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17

     Nordite-(Ce) is another extremely rare species at MSH.

PHYSICAL CHARACTERISTICS:

Color is usually white.
Luster is vitreous, greasy on fracture.
Diaphaneity is transparent to translucent.
Crystal System is orthorhombic; Pcca.
Crystal Habits include hemispherical aggregates of tiny silky crystals.
Cleavage {010} is apparent.
Fracture is (??).
Hardness is 5.
Specific Gravity is approximately 3.45 g/cm3.
Streak is light brown.
Associated Minerals include lueshite.
Distinguishing Features: Crystal habit and association.
Origin: Named in 1958 from a Russian word meaning North, alluding
   to its discovery near the Chinglusuai River in the Lovozero Tundras,
   Russia.

CLASSIFICATION:

Dana System
# 72.5.2.2

Strunz Classification
# VIII/G.03-20

REFERENCES:
Dana 8:1541-1542 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
--

AP
--

MX
--

SS
--

MC
--

HF
--

BR
--

SX
¤¤

FR
--

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