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Chalcopyrite
Chalcopyrite

Brucite
Brucite



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Chalcopyrite
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Brucite

Chalcopyrite and Brucite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Handbook of mineralogy (2001)
TransparentMichael O’Donoghue, Gems, Sixth Edition (2006)
1.5 Refractive Index
Not Available1.56-1.60
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Trigonal
1.8 Birefringence
Not Available0.010-0.020
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
TransparentMichael O’Donoghue

Chalcopyrite and Brucite Optic Character

Chalcopyrite and Brucite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chalcopyrite 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 Chalcopyrite 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.

Chalcopyrite and Brucite Transparency

Similar to their colors, Chalcopyrite 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, Chalcopyrite is Handbook of mineralogy (2001) while Chalcopyrite is Handbook of mineralogy (2001) in appearance.