IMA 2003-019
Na₆Sr₁₂Ba₂Zr₁₃Si₃₉B₄O₁₂₃(OH)₆ · 20 H₂O

     This species, under publication, was known as MSH UK-99. It is related to benitoite. More information to follow.

PHYSICAL CHARACTERISTICS:

Color is colorless to grey.
Luster is vitreous.
Diaphaneity is transparent.
Crystal System is hexagonal; p6₃cm.
Crystal Habits include (??).
Cleavage: (??).
Fracture is (??).
Hardness is (??).
Specific Gravity is approximately (??) g/cm³.
Streak is (??).
Associated Minerals include (??).
Distinguishing Features: (??).
Origin: Named for (??).

CLASSIFICATION:

REFERENCES:
MinRec 21:

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

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