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spinel-black

The spinel has only been recognized as an independent material for around 150 years. Previously, he was caught under the rubies. Large stones are rare. Among his outstanding features is his extraordinary sparkle.

SPINELL
Colour: red, yellow, brown, blue, green, black
Mohs hardness: 8
Density: 3.54-3.63
Transparency: transparent to opaque
Fracture. Muscular, uneven.
Subgroups
  • spinel
    nameØtypeType of cutPUitem No.
    spinel1,25 mmreal, genuineBrillant cut1/10463612
    spinel1,50 mmreal, genuineBrillant cut1/10463615
    spinel1,75 mmreal, genuineBrillant cut1/10463617
    spinel2,00 mmreal, genuineBrillant cut1/10463620
    spinel2,50 mmreal, genuineBrillant cut1/10463625
    spinel3,00 mmreal, genuineBrillant cut1/10463630

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