diorite is a crystalline aggregate of a soda-felspar and hornblende.
"Geology"
James Geikie
29. What is the mineralogical composition of syenite and diorite?
"Geology"
James Geikie
The steep pathway led past masses of red granite, intersected by veins of greenish diorite, until he reached a level plateau high above the oasis, where, beside a clear spring, green bushes and delicate mountain flowers adorned the barren wilderness.
"The Complete Historical Romances of Georg Ebers"
Georg Ebers