Lapis Lazuli

Formula of Lasurite: Na₈[Al₆Si₆O₂₄]S₂
Mineral class: silicates
Crystal system: cubic
Mohs scale: 5 - 6
Density (g/cm³): 2.4 - 2.9
Refractive index: 1.50
Colors: blue in variations
Fluorescence: strong white
Pleochroism: -
Largest Lapis Lazuli (Lazurite) crystal: 5 cm?
Deposits: Afghanistan, Russia, Chile
Name: a combination of the Latin words "lapis" (stone), and "lazulum" (ref. to the old Persian deposit at Lāzhvard)

Lapis Lazuli Mineral

Size: 6.1 x 4.7 x 4.5 cm

Origin: Kokhsa Valley / Badakhshan Prov. / Afghanistan

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Lapis Lazuli

Origin: 4.93 ct

Origin: Afghanistan

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Lapis Lazuli Ring

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Lapis Lazuli

Weight: 28.08 ct

Origin: Afghanistan

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Lapis Lazuli Pendant

Lapis Lazuli: 89.6 ct; 4.03 x 4.05 cm
Diamonds: 2; total 0.02 ct
Silver: 925/1000

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Lapis Lazuli

Weight: 4.02 ct

Origin: Afghanistan

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Lapis Lazuli

Weight: 43.98 ct

Origin: Badakhshan / Afghanistan

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Lapis Lazuli

Weight: 7.32 ct

Origin: Pyan Gyi Mine / Mogok / Myanmar

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