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Details
LOT 2593
Historic 'Australia' Boulder Opal Mineral Specimen
1 1/2 in. (34.8 grams, 39 mm).
The matrix showing pale sky-blue opal, collection number 425, with an old James Walker label. [No Reserve]
Provenance
Acquired on the UK mineral and fossil market, since 1970.
From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent.
Accompanied by an original historic index file card.
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