Perles en apatite jaune entre 4 et 8-9mm facettes From a strictly geological point

From a strictly geological point of view

55mm Weight in grams: 14

254Filtre chelsea: Pas de modificationSpectre: IndistinctDifférents pays ou peut-être extrait la malachite: Congo

Number of pearls in a row: 18

Perles en apatite jaune entre 4 et 8-9mm facettes From a strictly geological pointApatite beads. Color: Yellow Sizes between 4 and 8 9mm Country of origin: Mexico Treatment: Polymer impregnation (does not affect the color) which helps to consolidate the stone. Gemological information about apatite: Possible color: Colorless, yellow, green, blue, purple, pink Density: between 3. 16 and 3. 28 Hardness: 5 Crystal system: Hexagonal Fracture: Subconchoidal, uneven Cleavage: Imperfect Polariscope: Anisotropic (restores all 90, except in