tourmaline
English Thesaurus
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 (noun.substance)
| hypernym | : | mineral, |
| definition | : | solid homogeneous inorganic substances occurring in nature having a definite chemical composition (noun.substance) |
| hypernym | : | transparent gem, |
| definition | : | a gemstone having the property of transmitting light without serious diffusion (noun.substance) |
| hyponym | : | schorl, |
| definition | : | black tourmaline (noun.substance) |
Visual ArtiKata
Explore tourmaline in ArtiKata.com >