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Lamprophyre
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
- A group of dark-colored intrusive igneous rocks characterized by a high percentage of mafic minerals (such as biotite mica, hornblende, and pyroxene) as larger crystals, set in a fine-grained groundmass composed of the same minerals plus feldspars or feld s pathoids.
- Dark coloured, very fine- to coarse-grained, basic rock characterised by
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Percentage, английский
- Pourcentage
- Процент
- The proportion rate in every hundred or for every hundred what is the percentage of long-stay patients in the hospital?
- Процент; процентное содержание; процентный состав; процентное отношение percentage-of-completion method метод "по мере готовности"
- Процентное значение; значение величины, выраженное в процентах; процентное содержание о ~ by
- Комиссионные (выраженные в процентах)
Hornblende, английский
Black, dark green or greenish black, ferromagnesian silicate mineral.
Groundmass, английский
Relatively fine-grained glassy or crystalline material between the
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Macrodiamond, английский
A rough diamond that is more than 0.5 mm in diameter.
Lamproite, английский
A group of related dark-colored intrusive or ex- trusive igneous rocks that are rich in potassium and mag- nesium and characterized by minerals, including leucite, phlogopite, and feldspars. diamondiferous varieties carry dominant olivine and lack feldspar.
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