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Låvenite crystals
© Bill Lechner
(Na,Ca)(Mn,Fe2+)(Zr,Ti)Si(O,OH,F)
Låvenite is a rare mineral at Mont Saint-Hilaire.
PHYSICAL CHARACTERISTICS:
Color is usually yellow to brownish-yellow to brown.
Luster is vitreous.
Diaphaneity is transparent to translucent.
Crystal System is monoclinic;
Crystal Habits include small prismatic crystals forming radiating
aggregates to 5mm and rarely as free-growing acicular crystals.
Cleavage {100} is perfect.
Fracture is uneven.
Hardness is 6.
Specific Gravity is approximately 3.55 g/cm
Streak is white.
Associated Minerals include aegirine, analcime, astrophyllite,
biotite, microcline and zircon.
Distinguishing Features: Crystal habit and color.
Origin: Named in 1885 after its discovery locality, on Låven Island,
Langesundfjord, Norway.
CLASSIFICATION:
Dana System
# 56.2.4.4
Strunz Classification
# VIII/C.11-20
REFERENCES:
MinRec 21:316 (1990), Dana 8:1162-1163 (1997)
DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:
MSH
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