Engelsk ordbog



Info: Dette websted er baseret på WordNet fra Princeton University.

Engelsk navneord: tourmaline

1. tourmaline (om masse el. substans) 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


Mindre specifikke termermineral, transparent gem


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