Behoite
Be(OH)₂

     Behoite is an extremely rare accessory mineral at MSH.

PHYSICAL CHARACTERISTICS:

Color is usually white or colorless and pale pink; crusts
   are white.
Luster is greasy to dull; crusts are dull.
Diaphaneity is translucent to opaque; rarely transparent.
Crystal System is orthorhombic; P2₁2₁2₁.
Crystal Habits include well formed wedge-shaped crystals forming
   radiating spherical aggregates to 4mm in diameter; groups of
   prismatic crystals to 7mm with very steep wedge-shaped terminations
   forming reticulated aggregates and thin crusts.
Cleavage has not been observed.
Fracture is conchoidal.
Hardness is 4.
Specific Gravity is approximately 1.9 g/cm³.
Streak is white.
Associated Minerals include aegirine, albite, analcime, astrophyllite,
   calcite, epididymite, fluorite, franconite, gaidonnayite, leucophanite,
   mangan-neptunite, microcline, natrolite, polylithionite, pyrochlore,
   rhabdophane, rhodochrosite, rutile, sérandite, siderite, sphalerite
   and thomsonite.
Distinguishing Features: Crystal habit.
Origin: Named in 1970 for its composition, Be + HO (=OH).

CLASSIFICATION:

REFERENCES:
MinRec 21:299 (1990), Dana 8:277 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

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