1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone mineral 5) Gemstone 6) Jewel 7) Jewel mineral 8) Mineral gemstone 9) Mineral 10) Mineral jewel 11) Polished mineral 12) Polished jewel 13) Prized stone 14) Precious jewel 15) Precious stone 16) Precious gemstone 17) Prized mineral 18) Precious gem
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https://www.crosswordclues.com/clue/cassiterite
1) Ore 2) Tin ore
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https://www.crosswordclues.com/clue/cassiterite
Cassiterite is a tin oxide mineral, SnO2. It is generally opaque, but it is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem. Cassiterite has been the chief tin ore throughout ancient history and remains the most important source of tin today. ==Occurrence== Most sources of cassiterite today are found in ...
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http://en.wikipedia.org/wiki/Cassiterite
• (n.) Native tin dioxide; tin stone; a mineral occurring in tetragonal crystals of reddish brown color, and brilliant adamantine luster; also massive, sometimes in compact forms with concentric fibrous structure resembling wood (wood tin), also in rolled fragments or pebbly (Stream tin). It is the chief source of metallic tin. See Black tin, ...
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http://thinkexist.com/dictionary/meaning/cassiterite/
heavy, metallic, hard tin dioxide (SnO2) that is the major ore of tin. It is colourless when pure, but brown or black when iron impurities are ... [5 related articles]
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http://www.britannica.com/eb/a-z/c/33
Cas·sit'er·ite noun [ Greek ... tin.]
(Min.) Native tin dioxide; tin stone; a mineral occurring in tetragonal crystals of reddish brown color, and brilliant adamantine luster; also massive, sometimes in compact forms with concentric fibrous structure resembling wood (
wood tin ), also in ro...
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http://www.encyclo.co.uk/webster/C/32
The principal commercial ore of tin.
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http://www.metalbulletin.com/Glossary.html
Cassiterite is the principal ore of tin. It is widely distributed in small amounts but commercially available in only a few localities. It is frequently associated with wolframite. Native tin dioxide, it is found occurring in tetragonal crystals of reddish brown colour, and brilliant adamantine lustre; also massive, sometimes in compact forms with ...
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http://www.probertencyclopaedia.com/browse/HC.HTM
Tin oxide, mon-
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http://www.translationdirectory.com/glossaries/glossary075.htm
[
n] - a hard heavy dark mineral that is the chief source of tin
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http://www.webdictionary.co.uk/definition.php?query=cassiterite
noun a hard heavy dark mineral that is the chief source of tin
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https://www.encyclo.co.uk/local/20974
Mineral consisting of reddish-brown to black stannic oxide (SnO
2), usually found in granite rocks. It is the chief ore of tin. When fresh it has a bright (`adamantine`) lustre. It was formerly extensively mined in Cornwall, England; today Malaysia is the world's main supplier. Other sources of cassiterit...
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https://www.encyclo.co.uk/local/21221
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