Opal (Var: Opal-AN)
Squaretop Mountain, Kaimkillenbun, Dalby, Western Downs Region, Queensland, Australia
Squaretop Mountain (Black top hill), Kaimkillenbun, Dalby, Western Downs Region, Queensland, Australia
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A 20mm globule of hyalite opal shown in 'natural' light (actually halogen) and short-wave UV. From the Joan Lamond micro collection.
- 2nd May 2008
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