akenobeite
noun
ak·e·no·be·ite
ˌa-kə-ˈnō-bē-ˌīt
plural -s
: a crisscross-granular leucocratic differentiation rock composed of oligoclase, orthoclase, a little biotite, and in the interstices considerable quartz
Word History
Etymology
Akenobe district, Japan, its locality + English -ite
First Known Use
1922, in the meaning defined above