noun a double eight-sided pyramid, a form common with tetragonal crystals;
so called because this form often occurs in crystals of zircon.
ZIRCONOID
Meaning of ZIRCONOID in English
Webster English vocab. Английский словарь Webster. 2012
noun a double eight-sided pyramid, a form common with tetragonal crystals;
so called because this form often occurs in crystals of zircon.
Webster English vocab. Английский словарь Webster. 2012