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
Used in a Sentence
tourmaline
How to use tourmaline in a sentence. Example sentences and definitions for tourmaline.
Editorial note
That mineral is tourmaline. I think if you check that boulder and others like it you could rule out a natural origin if you find no evidence of tourmaline in the boulders.
Examples1
Definitions1
Parts of speech1
Quick take
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
Meaning at a glance
The clearest senses and uses of tourmaline gathered in one view.
Definitions
Core meanings and parts of speech for tourmaline.
noun
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
Example sentences
That mineral is tourmaline. I think if you check that boulder and others like it you could rule out a natural origin if you find no evidence of tourmaline in the boulders.
Frequently asked questions
Short answers drawn from the clearest meanings and examples for this word.
How do you use tourmaline in a sentence?
That mineral is tourmaline. I think if you check that boulder and others like it you could rule out a natural origin if you find no evidence of tourmaline in the boulders.
What does tourmaline mean?
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
What part of speech is tourmaline?
tourmaline is commonly used as noun.