Image: Crystal group 2: Orthorhombic - Prism and Basal Pinacoid

Crystal group 2: Orthorhombic - Prism and Basal Pinacoid

Illustrator:

Australian Museum Design Unit

Rights:

© Australian Museum

Additional information

Orthorhombic (orth): where each axis is of different length but the angle between each axis is 90°. (25% of known minerals).

Basal:  at the base.

Prism: a crystal that has a uniform cross section. In geometry, it is a solid that has two congruent and parallel faces (the bases) and whose lateral (side) faces are parallelograms.

Pinacoid: the face of a crystal that is parallel to two of the axes.

Last Updated: 18 December 2009

Tags crystallography, crystal shapes, crystal systems,