ulexite
Definizioni
A white mineral with triclinic crystals, NaCaB₅O₉·8H₂O, noted for its fibers which transmit light by internal reflection, such that a piece with flat faces perpendicular to the fibers' orientation displays an image of whatever is adjacent to its other side.
Equivalenti
altre 4 lingue
Livello QCER
B1
Intermedio
Questa parola fa parte del vocabolario QCER B1 — livello intermedio.
Questa parola fa parte del vocabolario QCER B1 — livello intermedio.
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