×

Anthophyllite
Anthophyllite

Simpsonite
Simpsonite



ADD
Compare
X
Anthophyllite
X
Simpsonite

Anthophyllite and Simpsonite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Adamantine
1.2 Pleochroism
When Fe-rich
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.603-1.6901.994-2.040
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Not Available
1.8 Birefringence
Not Available0.046
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Anthophyllite and Simpsonite Optic Character

Anthophyllite and Simpsonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Anthophyllite and Simpsonite 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 Anthophyllite and Simpsonite 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. Anthophyllite has Biaxial/+ character.

Anthophyllite and Simpsonite Transparency

Similar to their colors, Anthophyllite and Simpsonite 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, Anthophyllite is Transparent while Anthophyllite is Transparent in appearance.