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Fluorapatite
Fluorapatite

Brucite
Brucite



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Fluorapatite
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Brucite

Fluorapatite and Brucite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Vitreous, Pearly
1.2 Pleochroism
Weak to strong if coloreD
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TransparentMichael O’Donoghue, Gems, Sixth Edition (2006)
1.5 Refractive Index
1.631-1.6501.56-1.60
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Trigonal
1.8 Birefringence
Not Available0.010-0.020
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentMichael O’Donoghue

Fluorapatite and Brucite Optic Character

Fluorapatite and Brucite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Fluorapatite and Brucite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Fluorapatite and Brucite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Fluorapatite and Brucite Transparency

Similar to their colors, Fluorapatite and Brucite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Fluorapatite is Transparent while Fluorapatite is Transparent in appearance.