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Dominant species
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Morganite
Chemical
Formula
Be3Al2(SiO3)6
Species
Silicates
Crystal
System
Hexagonal
Mohs
Scale
7.5-8
Specific
Gravity
2.76
Color
Green, blue, yellow, colorless, pink and others
Streak
White
Luster
Vitreous to resinous
Refractive
Index
nω = 1.564–1.595,nε = 1.568–1.602
Diaphaneity
Transparent to translucent
Cleavage
Imperfect on
Fracture
Conchoidal to irregular
Crystal Habit:Prismatic to tabular cystals; radial, columnar; granular to compact massive
Morganite5148
Morganite5148
Morganite5147
Morganite5147