NaFe2+Al(SiAlO22)(OH)
Ferronyböite, a member of the amphiboles, has been recently at MSH.
PHYSICAL CHARACTERISTICS:
Color is usually blueish.
Luster is vitreous.
Diaphaneity is translucent.
Crystal System is monoclinic, 2/
Crystal Habits include (??).
Cleavage {110} is perfect.
Fracture is (??).
Hardness is ~ 5 – 6.
Specific Gravity is approximately ~ 3,11 g/cm
Streak is (??).
Associated Minerals include (??).
Distinguishing Features: brittle, pleochroism.
Origin: Named in 1997 for its ferrous content and its relationship to nyböite.
CLASSIFICATION:
Dana System
# 66.1.3c.11a
Strunz Classification
# VIII/F.08-65
REFERENCES:
pending
DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:
MSH
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