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| турмалин | |||
турмалин (Tourmaline ( /ˈtʊərməlɪn/, -/iːn/ TOOR-mə-lin, -leen) is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone and the gemstone can be found in a wide variety of colors.  wikipedia.org) | |||
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| A complex crystalline silicate containing aluminum, boron, and other elements. | |||
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tourmaline : 15 phrases in 6 subjects |
| General | 2 |
| Geology | 7 |
| Makarov | 2 |
| Mineralogy | 2 |
| Ornithology | 1 |
| Technology | 1 |