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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
Pay in 4 interest-free payments of $2.75 Learn more
Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
Weight in grams: 4
Aiguilles d'astrophyllite sur sa roche mère
Indice de réfraction: n0: 1
C'est une porcelanite silicifiée qui se trouve dans le profil altéré d'une formation géologique connue sous le nom de Windalia Radiolarite
Possible color: Metallic black
VENDU Tourmaline Noire Druzy 14 Rond facettée Weight in grams: 4Black tourmaline druzy cabochon. Black Shape: Drop Size: 43. 09 x 31. 30mm Weight in grams: 20. 86g Carat weight: 104. 30 carat Country of origin: Madagascar Gemological information about tourmaline: Density: Between 2. 84 and 3. 40 Hardness: Between 7 and 7. 5 Crystal system: Trigonal Fracture: Subconchoidal to irregular Cleavage: None Polariscope: Anisotropic (restores all 90 except in the optical axis) Refractive index: Ne: 1. 603 to 1. 772 No: 1.
US$ 595.00
US$ 340.00