- a mineral, hydrous sodium and calcium borate, NaCaB5O9⋅8H2O, occurring in arid regions in the form of white acicular crystals: a major source of borax.
Origin of ulexite
1865–70; named after George L. Ulex, German chemist; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ulexite
Historical Examples of ulexite
The salts contained in these deposits are mainly borax, ulexite, and colemanite.The Economic Aspect of Geology
C. K. Leith
- A white triclinic mineral that forms rounded, reniform (kidney-shaped) masses of very fine needle-shaped crystals. Ulexite has the unusual optical property of projecting an image of an object placed against a transverse section of it to the opposite surface. It is usually associated with borax deposits and is found in arid environments. Chemical formula: NaCaB5O9·8H2O.
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