GILC forms Opal Committee

At its general meeting, the Gemstone Industry & Laboratory Conference (GILC) formed an Opal Committee task force to find useable nomenclature as could be applied to the newer hydrophane opals currently on the market. The meeting was held in Tucson in February 2012.

The GILC has determined that disclosure regarding this variety of opal coming from the Wollo district of Ethiopia be as follows:

Type 1 Precious Opal – Hydrophane

Special Care Required: Hydrophane generally indicates a material that is absorbent when immersed in liquid. Keep away from cleaning agents, perfumes, oils and any liquids as they can be absorbed and may alter color and/or appearance. Avoid sudden and extreme temperature changes. Avoid steam and ultrasonic cleaners; clean with a soft cloth.

The GILC believes this to be a concise and workable suggestion for the industry and has made request that the gemological community raise the awareness and more clearly define the parameters of hydrophane tolerances. The GILC suggest laboratories give this consideration for research.

The GILC has been a platform for industry stakeholders to address and discuss important issues related to nomenclature, consumer confidence, terminology as well as the better involvement of Certification and research laboratories. GILC is an invitation-only event.