0.60 Ct Contra Luz Faceted Fire Mexican Opal

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细节

存货单位
尺寸（毫米）: 7 x 5 x 4mm
重量 (cts): 0.6
Type: Faceted
颜色

描述

DESCRIPTION: FreeForm Faceted Fire Mexican
Opal 0.60 Carats.

Item Type: SOLID NATURAL faceted opal

This is a stunning faceted
opal from Magdalena Jalisco.

Origin: MEXICO

Opal Size: 7 x 5 x 4 mm. APPROX

WEIGHT: 0.60 CTS APPROX

Treated/Untreated: Untreated.

PLEASE NOTE: With the contra luz variety of Mexican opal the internal rainbow colored fire is best viewed in transmitted light ( light entering stone from behind), rather than reflected light ( light shinning on stone from in front) and although with some stones of this variety rainbow fire may be visible in reflected light, the fire is NOT VISIBLE in ordinary lighting.

This stone will display nice internal rainbow colored fire when viewed with strong direct transmitted lighting, lightly visible in direct reflected lighting, but best viewed with light source entering stone from behind, such as from a ray of sunlight or even by holding stone up to an ordinary lamp light and moving stone back and forth. Transparent, near eye clean with small dark base of pavilion spot, free of crazing, with attractive face up and eye appeal. Custom cut about 4 years ago from rough well seasoned and so very stable, stone approx. 18 x 8.5 mm. Valuable opal variety.

Photo taken with an ordinary digital camera with a ray of sunlight entering stone from behind at at a slight angle to best show fire. Color has not been enhanced - but note that rainbow fire is NOT VISIBLE in ordinary lighting.

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