bn:01718637n
Noun Concept
Categories: Nanomaterials, Products introduced in 1974, Opals, Thin-film optics
EN
Slocum stone  John L. Slocum  Slocum opal
EN
Slocum stone is an early opal simulant which was briefly popular prior to the introduction of synthetics and less expensive simulants. Wikipedia
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EN
Slocum stone is an early opal simulant which was briefly popular prior to the introduction of synthetics and less expensive simulants. Wikipedia
A synthetically grown opal Wikipedia Disambiguation
Synthetically grown opal Wikidata
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