English Dictionary

tourmaline

IPA（発音記号）

/ˈtʊɚ.mə.lɪn/

名詞

可算名詞 不可算名詞

(mineralogy) A complex black or dark-coloured borosilicate mineral, compounded with various chemical elements and considered a semi-precious stone. / A transparent gemstone cut from it.

日本語の意味

（鉱物学）様々な化学元素を含む複雑な黒色または暗色のボロ珪酸塩鉱物で、半貴石とされる。これを原石とし、またはその原石からカットされた透明な宝石。

She slipped a tourmaline pendant over her head and admired how the dark stone caught the late-afternoon sun.

彼女は黒色のホウケイ酸塩鉱物で準宝石とされるトルマリンのペンダントを首にかけ、夕方の柔らかな陽光に石がきらめくのを眺めた。

意味（1）

(mineralogy) A complex black or dark-coloured borosilicate mineral, compounded with various chemical elements and considered a semi-precious stone.

Although there are dozens of different types of gems, among the best known and most important are […] . (Common gem materials not addressed in this article include amber, amethyst, chalcedony, garnet, lazurite, malachite, opals, peridot, rhodonite, spinel, tourmaline, turquoise and zircon.)

意味（2）

A transparent gemstone cut from it.

tourmalines （ plural ）