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- Slocum_stone abstract "Slocum stone (sometimes sold as "Slocum opal") is an early opal simulant which was briefly popular prior to the introduction of synthetics and less expensive simulants. It was named after its inventor, John S. Slocum of Rochester, Michigan.John Slocum experimented during the 1960s with various methods. In 1971, he began marketing his first commercial simulant under the "Opal Essence" trade name. Not satisfied, he continued experimenting and in 1974 brought out the more realistic "Slocum Stone" type. However, Gilson synthetic opals and other imitation opals such as "Opalite" came onto the market soon thereafter and greatly diluted the market for "Slocum Stone" By 1976, this product was being manufactured by MDI Corporation.Slocum Stone is a silicate glass which shows traces of sodium, magnesium, aluminum and titanium. It was manufactured in several base colors, and the opalescence is produced by very thin layers of metallic film (estimated at 30 nanometres in thickness), in the form of translucent flakes, which produce a thin-film interference effect. These flakes themselves lend color, along with colorant within the glass base. Bubbles and swirls typical of glass are other typical inclusions which may be noticed under magnification. In later examples, built-up laminations are visible when viewed from the side.".
- Slocum_stone thumbnail Slocumstone.jpg?width=300.
- Slocum_stone wikiPageID "23907700".
- Slocum_stone wikiPageLength "3647".
- Slocum_stone wikiPageOutDegree "12".
- Slocum_stone wikiPageRevisionID "545694018".
- Slocum_stone wikiPageWikiLink Aluminium.
- Slocum_stone wikiPageWikiLink Aluminum.
- Slocum_stone wikiPageWikiLink Category:1974_introductions.
- Slocum_stone wikiPageWikiLink Category:Gemstones.
- Slocum_stone wikiPageWikiLink Glass.
- Slocum_stone wikiPageWikiLink Magnesium.
- Slocum_stone wikiPageWikiLink Opal.
- Slocum_stone wikiPageWikiLink Opalescence.
- Slocum_stone wikiPageWikiLink Opalite.
- Slocum_stone wikiPageWikiLink Rochester,_Michigan.
- Slocum_stone wikiPageWikiLink Silicate_glass.
- Slocum_stone wikiPageWikiLink Sodium.
- Slocum_stone wikiPageWikiLink Thin-film_optics.
- Slocum_stone wikiPageWikiLink Titanium.
- Slocum_stone wikiPageWikiLinkText "Slocum stone".
- Slocum_stone alt "photo of cabochon".
- Slocum_stone caption "a "Slocum Stone" cabochon".
- Slocum_stone color "varies".
- Slocum_stone fracture "conchoidal".
- Slocum_stone gravity "2.4".
- Slocum_stone hasPhotoCollection Slocum_stone.
- Slocum_stone mohs "6".
- Slocum_stone name "opal simulant".
- Slocum_stone refractive "1.489".
- Slocum_stone streak "white".
- Slocum_stone wikiPageUsesTemplate Template:Infobox_mineral.
- Slocum_stone wikiPageUsesTemplate Template:Reflist.
- Slocum_stone subject Category:1974_introductions.
- Slocum_stone subject Category:Gemstones.
- Slocum_stone type ChemicalSubstance.
- Slocum_stone type Mineral.
- Slocum_stone type Object.
- Slocum_stone type ChemicalObject.
- Slocum_stone type Thing.
- Slocum_stone type Q7946.
- Slocum_stone comment "Slocum stone (sometimes sold as "Slocum opal") is an early opal simulant which was briefly popular prior to the introduction of synthetics and less expensive simulants. It was named after its inventor, John S. Slocum of Rochester, Michigan.John Slocum experimented during the 1960s with various methods. In 1971, he began marketing his first commercial simulant under the "Opal Essence" trade name.".
- Slocum_stone label "Slocum stone".
- Slocum_stone sameAs Slocum_Stone.
- Slocum_stone sameAs m.076x85d.
- Slocum_stone sameAs Q1660667.
- Slocum_stone sameAs Q1660667.
- Slocum_stone wasDerivedFrom Slocum_stone?oldid=545694018.
- Slocum_stone depiction Slocumstone.jpg.
- Slocum_stone isPrimaryTopicOf Slocum_stone.
- Slocum_stone name "("Slocum Stone")".
- Slocum_stone name "opal simulant".