AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Namibia > Hyalite Opal on Smoky Quartz

Hyalite Opal on Smoky Quartz from Erongo Mountains, 20 km north of Usakos, Damaraland, Namibia

Photo below under shortwave ultraviolet illumination:

Photo below under longwave ultraviolet illumination:

DESCRIPTION:	No. 90109
Mineral:	Hyalite Opal on Smoky Quartz
Locality:	Erongo Mountains, 20 km north of Usakos, Damaraland, Namibia
Description:	Lustrous transparent tapered smoky quartz crystals to 60 mm with partial overgrowth of lustrous transparent pale-green hyalite opal that fluoresces bright green under UV illumination.
Overall Size:	11x9.5x6 cm
Crystals:	5-80 mm
Archived:	For reference only

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