Hyalite
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Erongo massif, Omaruru District, Erongo region, Namibia
1933
Bubbly spheres of transparent Haylite fluorescing a vivid green (SW) and coating an earlier yellow layer. Unusual location for this rare variety of Opal.
Formula: SiO2 . nH2O
Status: Sold
Dimensions: 125x80x28mm
Size: Large Cabinet (L)
Minerals of the English Midlands
UK Journal of Mines & Minerals No. 12
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