facts about stones | stones facts - Serendibite @ amazing facts
Hello Friends, welcome to my channel - Amazing Facts. In this video, you will come to know about some interesting and amazing facts about the worlds one of rarest and costliest stone. Let us explore, the video is gonna be very interesting so watch the video till the end. Hope you will like the video.
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General information about Serendibite gem
Category: Inosilicates
Formula: (Ca,Na)2(Mg.Fe2+)3(A,Fe3+)3[02|
(SiA,B)6018]
Strunz classification: 9.DH.40
Dana classification: 69.2.1 a.6
Crystal system: Triclinic
Crystal class: Pinacoidal
Color: Black, pale yellow, blue-green, greyish blue
Twinning: Polysynthetic on {0-11} is common
Cleavage: None Observed
Mohs scale hardness: 6.5 -7
Luster: Vitreous
Streak: White
Diaphaneity: Transparent, Translucent, Opaque
Specific gravity: 3.42 -3.52 (measured) 3.47
(calculated)
Optical properties: Biaxial (+)
Refractive index: 1.701 -1.706
Pleochroism: Visible, strong, color: green, blue, yellow,
blue-green, light yellow
2V angle: Measured: 80°
Dispersion: strong
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