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Rhyolite is an igneous/volcanic rock
La couleur arc-en-ciel est le résultat de la réfraction de la lumière sur des inclusions de nanoparticules d'hédenbergite
Silica nanospherules are:
71mm Weight in grams: 5
10g Carat weight: 135
Citrine brut 104 Communication animale Rhyolite is an igneous/volcanic rockRaw Citrine Color: Pale yellow Dimensions: 29. 17 x 21. 54 x 21. 57mm Weight: 18. 43g Country of origin: Democratic Republic of Congo Gemological information about citrine: Possible color: Pale yellow to yellow, orange, light brown (champagne, cognac, Madeira) Density: 2. 65 Hardness: 7 Crystal system: Trigonal Fracture: Conchoidal Cleavage: None Polariscope: Anisotropic (restores all 90, except in the optical axis) Refractive index: n0: 1. 538 to 1.
