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Miserite
K(Ca,Ce)6Si8O22(OH,F)2

     Miserite is rare at MSH. It was found in the early 1970's and designated as UK #36.

PHYSICAL CHARACTERISTICS:

Color ranges from pale to medium reddish violet (rasberry).
Luster is vitreous.
Diaphaneity is transparent to translucent to opaque.
Crystal System is triclinic; P1.
Crystal Habits include elongated pseudohexagonal, striated crystals
   to 12mm as individual or groups of crystals.
Cleavage {001} is distinct.
Fracture is subconchoidal to uneven.
Hardness is 5.5 - 6.
Specific Gravity is approximately 2.9 g/cm3.
Streak is white.
Associated Minerals include calcite, fluorite, pectolite and
   wollastonite.
Distinguishing Features: Crystal habit and color.
Origin: Named in 1950 after Hugh Dinsmore Miser (1884-1969),
   geologist, U.S. Geological Survey.

CLASSIFICATION:

Dana System
# 70.2.1.1

Strunz Classification
# VIII/F.35-30

REFERENCES:
MinRec 21:323 (1990), Dana 8:1400 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
--

AP
--

MX
¤¤

SS
--

MC
--

HF
--

BR
--

SX
--

FR
--

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