Crystal class

Classe cristalline (Fr.); Kristallklasse (Ge); Clase cristallina (Sp); Classe cristallina (It); 結晶類 (Ja).

Crystal class may refer to:

• Arithmetic crystal class
• Geometric crystal class

Japanese nomenclature

The Japanese term commonly used to indicate a crystal class is 晶族 which however, as pointed out by Matsumoto (1977), is not an appropriate translation in that the character 族 is more suitable to indicate a crystal family. According to this author, a better translation of crystal class is 結晶類, which is therefore adopted in this dictionary.

Reference

• Matsumoto, T. (1977). J. Miner. Soc. Japan, 13, 247-289.