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Andalusite
Andalusite
☒

Glaucophane
Glaucophane
☒



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Andalusite
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1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous, Pearly
1.2 Pleochroism
strongly trichroic
Strong
1.3 Dispersion
0.02NA
Fluorite Optical Properties ▶ ⊕
0.007 1
1.8 Transparency
Transparent, Translucent
Not Available
1.9 Refractive Index
1.627-1.6501.606-1.637
Agate Opal ▶ ⊕
1 3.25
2.11 Optic Character
Not Available
Not Available
2.12 Crystal System
Orthorhombic
monoclinic
2.13 Birefringence
0.009-0.010Not Available
Achroite ▶ ⊕
0 0.296
2.19 Clarity
Transparent
Not Available

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