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Catapleiite crystals - click for larger pic
Catapleiite
Photo by Modris Baum
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Catapleiite crystals - click for larger pic
Catapleiite crystals
Photo by Modris Baum
© Modris Baum

Catapleiite crystals - click for larger pic
Catapleiite crystals
Photo by Modris Baum
© Modris Baum

Catapleiite crystals - click for larger pic
Catapleiite
Photo by Modris Baum
© Modris Baum

Catapleiite crystals - click for larger pic
Catapleiite crystals
Photo by Modris Baum
© Modris Baum

Catapleiite crystals - click for larger pic
Catapleiite crystals
Photo by Modris Baum
© Modris Baum

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Home > Mineral Descriptions > Catapleiite - (14 Photos)



Catapleiite
(Na,Ca,?)3ZrSi3O9 · 2H2O

     Over the years, Mont Saint-Hilaire has produced the largest crystallized specimens of catapleiite, making it the most sought
after species after sérandite.

PHYSICAL CHARACTERISTICS:

Color varies from tan to beige to pale gray to brown to colorless; very
   rarely pale yellow, pale orange, pink and very pale blue in small
   crystals.
Luster is vitreous; many crystals are coated with thin film that reduces
   the luster and gives some iridescence to the crystals.
Diaphaneity is transparent to translucent to opaque.
Crystal System is monoclinic (pseudo-orthorhombic, pseudo-
    hexagonal);B2/b
Crystal Habits include excellent hexagonal shaped plates, sometimes
   forming stacked rosettes; at least six twin laws are reported.
Cleavage {100} is perfect.
Fracture is conchoidal.
Hardness is 5.5
Specific Gravity is approximately 2.8 g/cm3
Streak is white.
Associated Minerals include aegirine, albite, amphiboles, analcime,
   ancylite, ankerite, astrophyllite, calcite, donnayite, fluorite, magnetite,
   natrolite, polylithionite, pyrochlore, rhodochrosite, siderite and
   sphalerite.
Distinguishing Features Pseudo-hexagonal paty crystal habit.
Origin: Named in 1851 from Greek kata, with and pleion, more, alluding
    to its association with a number of rare minerals.

CLASSIFICATION:

Dana System
# 59.2.2.1

Strunz Classification
# VIII/E.4-10

REFERENCES:
CanMin 16:195-198 (1978), MinRec 21:284 (1990),
Dana 8:1226-1227 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
¤¤

AP
¤¤

MX
¤¤

SS
--

MC
¤¤

HF
--

BR
¤¤

SX
¤¤

FR
--

Legend

Catapleiite crystals - click for larger pic
Catapleiite
Photo by Modris Baum
© Modris Baum

Catapleiite crystals - click for larger pic
Catapleiite crystals
Photo by Doug Merson
© Doug Merson

Catapleiite crystals - click for larger pic
Catapleiite crystals
Photo by Stephan Wolfsried
© Stephan Wolfsried


Catapleiite crystals - click for larger pic
Catapleiite
Photo by Gilles Haineault
© Gilles Haineault


Catapleiite crystals - click for larger pic
Catapleiite crystals
Photo by Stephan Wolfsried
© Stephan Wolfsried






Catapleiite crystals - click for larger pic
Catapleiite crystals
Photo by Stephan Wolfsried
© Stephan Wolfsried

Catapleiite crystals - click for larger pic
Catapleiite crystals
Photo by R. Lavinsky
© www.irocks.com

Catapleiite crystals - click for larger pic
Catapleiite "donuts"
Photo by Bill Lechner
© Bill Lechner