Premium-Seiten ohne Registrierung:

Auktionsarchiv: Los-Nr. 761

Rare Cat's Eye Demantoid Garnet from a Rare Locality

Schätzpreis
1.500 $ - 2.000 $
Zuschlagspreis:
1.657 $
Auktionsarchiv: Los-Nr. 761

Rare Cat's Eye Demantoid Garnet from a Rare Locality

Schätzpreis
1.500 $ - 2.000 $
Zuschlagspreis:
1.657 $
Beschreibung:

Kerman Province, Iran Demantoid garnet is one of the most valuable members of the garnet family--chatoyant demantoids are almost never seen. The few examples which have reached the market originated from the central Ural Mountains in Russia. However in 2001 a new source of demantoid garnet was found in Kerman Province, between the villages of Bagha Borch and Soghan) in the south-east of Iran. Less than 0.1% of the material found there was seen to have any cat's eye effect. The cat's eye effect in Iranian demantoid may apparently be caused by long parallel fibrous inclusions (possibly chrysotile or byssolite). When this material was compared to cat's eye demantoid materials from the Klodovka Mine, in the Ural Mountains in Russia, their crystal forms, color distribution and the types and orientation of inclusions were seen to be different. The present oval cabochon cat's eye of rich green color demonstrates a strong cat's eye effect. Weighing approximately 5.18 carats and measuring 10.11 x 7.85 x 6.40mm

Auktionsarchiv: Los-Nr. 761
Auktion:
Datum:
20.05.2019
Auktionshaus:
Bonhams London
Los Angeles 7601 W. Sunset Boulevard Los Angeles CA 90046 Tel: +1 323 850 7500 Fax : +1 323 850 6090 info.us@bonhams.com
Beschreibung:

Kerman Province, Iran Demantoid garnet is one of the most valuable members of the garnet family--chatoyant demantoids are almost never seen. The few examples which have reached the market originated from the central Ural Mountains in Russia. However in 2001 a new source of demantoid garnet was found in Kerman Province, between the villages of Bagha Borch and Soghan) in the south-east of Iran. Less than 0.1% of the material found there was seen to have any cat's eye effect. The cat's eye effect in Iranian demantoid may apparently be caused by long parallel fibrous inclusions (possibly chrysotile or byssolite). When this material was compared to cat's eye demantoid materials from the Klodovka Mine, in the Ural Mountains in Russia, their crystal forms, color distribution and the types and orientation of inclusions were seen to be different. The present oval cabochon cat's eye of rich green color demonstrates a strong cat's eye effect. Weighing approximately 5.18 carats and measuring 10.11 x 7.85 x 6.40mm

Auktionsarchiv: Los-Nr. 761
Auktion:
Datum:
20.05.2019
Auktionshaus:
Bonhams London
Los Angeles 7601 W. Sunset Boulevard Los Angeles CA 90046 Tel: +1 323 850 7500 Fax : +1 323 850 6090 info.us@bonhams.com
LotSearch ausprobieren

Testen Sie LotSearch und seine Premium-Features 7 Tage - ohne Kosten!

  • Auktionssuche und Bieten
  • Preisdatenbank und Analysen
  • Individuelle automatische Suchaufträge
Jetzt einen Suchauftrag anlegen!

Lassen Sie sich automatisch über neue Objekte in kommenden Auktionen benachrichtigen.

Suchauftrag anlegen