Lotto 13 Pietre Opale Etiope Multiforme

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Lot composed of 13 natural stones of opal Etiope, cut multiform cabochon.

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product sold with certificate of guarantee and gift box

100% natural stone

Technical Details

Reference 56987-G385-OPAL1122

Gemma: Opa
Variety: Ethiopia
Colour: Multicolor
Weight: 17.863 ct
Gemstone diameter: From ø 10x6,5 mm to ø 14x7 mm
Cutting: Cabochon
Shape: Multiform
Quantity: 13 stones

Description

THERE'Opale Etiope, like all the opals, is amorphus, i.e. without an ordered crystalline structure. The training of the opal takes place through a slow deposition of a colloidal silica gel that, depending on the environment of deposition and formation, can enrich with traces of other mineral substances.

The type color game of the opal Ethiopian is an optical effect caused by the diffraction of light when it interacts with its internal structure. It is an optical phenomenon that happens when the luminous waves are deviated from objects that have dimensions comparable to their wavelength.

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