Ussingite: Rare rose quartz look-alike

Article Abstract:

The author discusses the suitability of ussingite crystals in producing unusual cabs and cabochons useful in making attractive jewelries. These rare, pink- or lavender-colored crystals may resemble a rose quartz. They can also contain snow-white albite, blackish green agirine, pink tugtupite, golden vuonnemite or other related minerals.

Jewelry (except Costume) Manufacturing, Jewelry, precious metal, Jewelry ex Platinum & Gold, Jewelry

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Albite - the sneaky feldspar

Article Abstract:

An overview of the properties of albite, a plagioclase feldspar mineral, is presented. Although albite is seldom used for gems, it can appear in some. Rocks with albite as the chief feldspar are also rare, but are known from alkaline intrusions. The chemical properties of albite, as well as other plagioclases, are also discussed.

Plagioclase

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Questions, answers, & tips

Article Abstract:

Viking use iolite to locate the sun while navigating. Details with regard to solving problem of scratches in final polishing of minerals and gemstones are discussed. Recommendation on books and website for bead jewelry-making is presented.

All Other Nonmetallic Mineral Mining, Misc Gems, Column, Gems, Precious stones, Grinding and polishing, Polishing, Vikings, Marine navigation

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