General Information:
Chemical Formula:(Ca,Na)2Be[(Si,Al)2O6(F,OH)]
Composition:(Molecular Weight = 241.15 gm)Sodium 9.53 %
NaCalcium 16.62 %
CaBeryllium 3.74 %
BeAluminum 11.19 %
AlSilicon 11.65 %
SiHydrogen 0.21 %
H Oxygen 43.13 %
O Fluorine 3.94 %
F Empirical Formula: CaNaBeSiAlO6F0.5(OH)0.5
Environment:Nepheline-syenite pegmatite.
Locality:Langesundfiord district of southern Norway.
Name Origin:Named from the Greek for "honey" and "to appear" in allusion to the color.
Physical Properties: Cleavage:[010] Perfect, [001] Distinct
Color:colorless, yellow, yellowish red, or red.
Density:3.01 - 3.03, Average = 3.01
Diaphaniety:Transparent to translucent
Habits:Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Tabular - Form dimensions are thin in one direction.,
Hardness:5-5.5 - Apatite-Knife Blade
Luster:Vitreous (Glassy)
Streak:white
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