
1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone 5) Gemstone mineral 6) Jewel mineral 7) Jewel 8) Mineral 9) Mineral jewel 10) Mineral gemstone 11) Polished mineral 12) Polished jewel 13) Prized stone 14) Precious gem 15) Prized mineral 16) Precious stone 17) Precious jewel 18) Precious gemstone
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Amblygonite is a fluorophosphate mineral, (Li,Na)AlPO4(F,OH), composed of lithium, sodium, aluminium, phosphate, fluoride and hydroxide. The mineral occurs in pegmatite deposits and is easily mistaken for albite and other feldspars. Its density, cleavage and flame test for lithium are diagnostic. Amblygonite forms a series with montebrasite, the l...
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http://en.wikipedia.org/wiki/Amblygonite

phosphate mineral composed of lithium, sodium, and aluminum phosphate [(Li,Na)AlPO4(F,OH)], that is an ore of lithium. It occurs in lithium- and ... [1 related articles]
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http://www.britannica.com/eb/a-z/a/57

Amblygonite is a rare mineral occurring in lithium and phosphate rich granite pegmatites. Associated with spodumene, apatite, tourmaline, lepidolite. It has the formulae (Li,Na)Al(PO4)(F,OH) and a relative hardness of 6.
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http://www.probertencyclopaedia.com/browse/HA.HTM

[
n] - a white or gray mineral consisting of lithium aluminum phosphate
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http://www.webdictionary.co.uk/definition.php?query=amblygonite
noun a white or grey mineral consisting of lithium aluminum phosphate; a source of lithium
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https://www.encyclo.co.uk/local/20974

a mineral, a lithium aluminum fluorophosphate, Li(AlF)PO: an ore of lithium.
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https://www.infoplease.com/dictionary/amblygonite
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