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14:30 Jun 29, 2016 |
Italian to English translations [PRO] Materials (Plastics, Ceramics, etc.) / Murano art | |||||||
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| Selected response from: Lisa Jane Italy Local time: 03:44 | ||||||
Grading comment
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Summary of answers provided | ||||
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4 +2 | copper sulphate crystals |
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4 +1 | copper sulfate crystals |
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3 | crystals of copper salt |
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Summary of reference entries provided | |||
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Some pics |
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crystals of copper salt Explanation: probably copper sulphate http://www.kristallikov.net/page6e.html |
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copper sulfate crystals Explanation: https://en.wikipedia.org/wiki/Copper(II)_sulfate |
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copper sulphate crystals Explanation: di solito sono cristalli blu -------------------------------------------------- Note added at 24 mins (2016-06-29 14:54:20 GMT) -------------------------------------------------- http://www.shutterstock.com/cat.mhtml?country_code=US&safese... -------------------------------------------------- Note added at 30 mins (2016-06-29 15:00:32 GMT) -------------------------------------------------- http://omanobserver.om/artistry-and-culture-of-quality-glass... Aventurine glass was produced initially by the Miotti family, in the 17th century, its origins perhaps dictated by the name they gave it, which means “lucky” or “by chance’ and was discovered when workers accidentally contaminated a batch of glass with copper filings. Upon starting work with the glass Miotti noticed the sparkle throughout the glass, and so it was born. It remained a family secret until the widow of one unwittingly revealed the secret almost 200 years later. Also known as Stellaria, or goldstone, this stunning technique is created by adding copper, or copper sulphate, to produce a rich brown colour. |
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Reference: Some pics Reference information: cristalli di solfato di rame https://www.google.es/search?q=cristalli di sale di rame&ie=... copper sulphate crystals https://www.google.es/search?q=copper sulphate crystals&ie=u... |
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