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Clinochlore
(Mg,Fe2+)5Al(Si3Al)O10(OH)9

     Clinochlore, a member of the chlorite group, is found in marble xenoliths at Mont Saint-Hilaire.

PHYSICAL CHARACTERISTICS:

Color is usually colorless, tan or brown.
Luster is vitreous.
Diaphaneity is translucent to opaque.
Crystal System is monoclinic; C2/m.
Crystal Habits include aggregates of minute plates forming
   rosettes on crystals of taeniolite.
Cleavage {001} is perfect.
Fracture is uneven.
Hardness is 2 - 2.5
Specific Gravity is approximately 2.65 g/cm3.
Streak is greenish-white to white.
Associated Minerals include albite, anatase, calcite, catapleiite,
   dolomite, fluorapatite, gmelinite, pyrite, quartz, rutile, siderite and
   sphalerite.
Distinguishing Features: Crystal habit and color.
Origin: Named in 1851 from the Greek klinein, to incline, plus
   chloros, green, alluding to its color and the great obliquity
   between its optic axes.

CLASSIFICATION:

Dana System
# 71.4.1.4

Strunz Classification
# VIII/H.23-20

REFERENCES:
MinRec 21:303 (1990), Dana 8:1501-1503 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
--

AP
--

MX
¤¤

SS
--

MC
--

HF
--

BR
--

SX
--

FR
--

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