black jet earrings
black jet earrings
black jet earrings
black jet earrings

Black-Jet and Silver Earrings 013

40.00€ – 60.00€

Silver and Asturian black-jet earrings, handmade with 930 sterling silver and Jurassic Asturian jet.

Size (hook/top excluded): 3 cm long by 1.6 cm wide and 0.6 cm hieght. Weight: 3.3 / 3.5 grams each.

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SKU: azp013pen Categories: , Tags: ,

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Additional information

Top - Closure

Black-jet butterfly back, Hook

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.