The definition of 'tourmalines' & the word 'tourmalines' in example sentences or phrases
Noun
1
a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones
Synonyms of the word 'tourmalines' & Antonyms of the word 'tourmalines'.
Noun
Synonymstourmaline,
