Black-Jet Earrings 004
Black-Jet Earrings 004 - Image 2
Black-Jet Earrings 004 - Image 3
Black-Jet Earrings 004 - Image 4

Black-Jet Earrings 004

35.00€

Jurasic Asturian Black-Jet and 925 Sterling Silver “button” earrings.
Two sizes available (5 and 6 mm diameter).
Each piece is made entirely by hand, so slight variations may exist.

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SKU: azp004pen Category: Tags: ,

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Additional information

Size

5 mm diameter, 6 mm diameter

Black-Jet

Natural Black Jet

HARDNESS: 3 – 4
DENSITY: 1,2 – 1,3 g/cm3
SCRATCH: Dark brown
COLOR: Bright black
BRIGHTNESS: Vitreous
EXFOLIATION- FRACTURE: Concoidea
CRYSTALLIZATION: Orthorhombic system
TRANSPARENCY: Opaque
LUMINESCENCE: Yellowish green

Black-Jet has a compact conformation, is soft to the touch, light and quite hard. In Asturias it is called Acebache or Azebache. The best jet in the world, along with Whithby, is in Asturias in the Jurassic Coast, between Gijón and Ribadasella, with a texture, an intense color and incomparable hardness. Recent studies carried out by a research team of the University of Oviedo, show that the Asturian black-jet comes from a family of Jurassic trees, extinct 65 million years ago.