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Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
Reserve from the case
Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
Origin: USA
Forme et taille : Tranche freeform
L’ardoise est une roche métamorphique issue d'une argile qui appartient à la famille des schistes
Inclusions of iron oxide (Fe) and the presence of manganese (Mn) give rise to dendritic patterns reminiscent of branches or frost
Spinelle (noir) - Paire Spinelle / Spinel Origin: USASpinel is an increasingly popular gemstone. It has a high luster and it comes in a wide variety of colors like red, blue, purple, pink, and black. It has a high hardness (8 on the Mohs scale) and its chemical composition is very close to that of corundum (ruby and sapphire). Since 2016, spinel has been added to peridot as the birthstone for August. Black spinels are a dazzling black and are often used in jewelry. Variety: Spinel Black color
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