Search:tetartohedral -> TETARTOHEDRAL
tetartohedral
t e t a r t o h e d r a l hex:#116;#101;#116;#97;#114;#116;#111;#104;#101;#100;#114;#97;#108;
The Salt of the World?
- Tetartohedral - a. - Having one fourth the number of planes which are requisite to complete symmetry.
- Trapezohedron - n. - A tetartohedral solid of the hexagonal system, bounded by six trapezoidal planes. The faces of this form are common on quartz crystals.