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Dominant species
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Hambergite
Chemical
Formula
Be2BO3OH
Species
Borates
Crystal
System
Orthorhombic
Mohs
Scale
7
Specific
Gravity
2.347-2.372
Color
Colorless, pale gray, pale yellow
Streak
White
Luster
Vitreous
Refractive
Index
n = 1.554 - 1.560 n = 1.587 - 1.591 n = 1.628 - 1.631
Diaphaneity
Transparent, Translucent
Cleavage
PerfectOn ; on good.
Crystal Habit:Prismatic crystals
Geological Setting:Alkali-rich pegmatites (Madagascar); gem gravels (Kashmir).
Hambergite6780
Hambergite6780
Hambergite6779
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Hambergite6775
Hambergite6774
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Hambergite6773
Hambergite6773
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Hambergite6771
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Hambergite6770
Hambergite6770

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