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).

 

 

Dana class # 6.2.2.1 – Oxides; hydroxides and oxides containing hydroxyl
Strunz class # IV/F.1-20 – Oxides; hydroxides and oxidic hydrates, water-bearing oxides with layered structure;
sassolite – clinobehoite series