Ca(Y,Ce)Si12(CO) · H
Kainosite-(Y) is extremely rare at Mont Saint-Hilaire. Only a few specimens have been found from a single find.
PHYSICAL CHARACTERISTICS:
Color varies from pale yellow-brown to brown.
Luster is vitreous.
Diaphaneity is transparent to translucent or opaque.
Crystal System is orthorhombic; Pmnb
Crystal Habits include divergent sprays of orthorhombic prisms
to 5mm terminated by pinacoids.
Cleavage at 90 {100} and {010}.
Fracture is uneven.
Hardness is 5 – 6.
Specific Gravity is approximately 3.52 g/cm
Streak is pale brown.
Associated Minerals include aegirine, albite, amphibole group,
ancylite, calcite, catapleiite, donnayite, fluorapatite,
nenadkevichite, pyrophanite, synchysite and titanite.
Distinguishing Features: Crystal habit and color.
Origin: Named in 1886 probably from a mispronunciation of the
Greek xenos, strange, in allusion to its composition, which
combines silicate and carbonate radicals.
CLASSIFICATION:
Dana System
# 60.2.1.1
Strunz Classification
# VIII/E.9-10
REFERENCES:
MinRec 21:315 (1990), Dana 8:1236-1237 (1997)
DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:
MSH
¤¤¤