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Phillipsite-K
(K,Na,Ca)1-2(Si,Al)8)O16 · 6H2O

     Phillipsite-K is a newborn species from the new zeolite nomenclature from IMA and recently analyzed from Mont Saint-Hilaire. It is indistinguishable visually from harmotome and phillipsite-Na.

PHYSICAL CHARACTERISTICS:

Color is usually colorless or white.
Luster is vitreous.
Diaphaneity is transparent to translucent.
Crystal System is monoclinic; P21/m.
Crystal Habits include (??).
Cleavage {010} and {100} are distinct.
Fracture is uneven to subconchoidal.
Hardness is 4 - 4.5
Specific Gravity is approximately 2.2 g/cm3.
Streak is white.
Associated Minerals include (??).
Distinguishing Features: (??).
Origin: Named in 1825 after William Phillips (1775-1828), British
   mineralogist and geologist.

CLASSIFICATION:

Dana System
# 77.1.3a.3

Strunz Classification
# VIII/J.25-55

REFERENCES:
MinRec 21:330 (1990), Dana 8:1665-1666 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
--

AP
--

MX
--

SS
--

MC
--

HF
--

BR
--

SX
--

FR
--

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