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The mystery of Minerals, brought to you by {name}

Antonio Rapisarda

L'ossidiana è un vetro vulcanico la cui formazione è dovuta al rapidissimo raffreddamento della lava, sempre ricca di ioni silicato. L'ossidiana è un vetro naturale, del tutto simile a quello di produzione umana.

Materia prima molto ricercata nell'antichità per la fabbricazione di strumenti taglienti (prevalentemente coltelli) è stata una delle merci che ha animato il commercio del Mediterraneo e sostenuto la vita economica dei luoghi di estrazione. Oggi viene ancora lavorata in piccoli oggetti decorativi, monili, lame per bisturi.

Splendida sfera di ossidiana, proveniente dal Messico.

Peso: 260g
Diametro: 6,36cm


Mexico

Obsidian Sphere - Height: 6.36 cm- 260 g - (1)

Minerals & Meteorites

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Period

Paleogene, Eocene (56 - 33.9 million years)

Neogene, Miocene (23.03 - 5.33 million years)

Paleogene, Oligocene (33.9 - 23.03 million years)

2020+

Cretaceous, Lower (145 - 100.5 million years)

2026

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Triassic, Lower (251.9 - 247.2 million years)

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GEM-TECH Istituto Gemmologico

Antwerp Laboratory for Gemstone Testing (ALGT)

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Obsidian Sphere - Height: 6.36 cm- 260 g - (1)

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