Experimental Study on Mechanical Properties of Deep Buried Granite under Different Confining Pressures

Table 1

Mineral content and grain size of granite specimens.

Name of mineral	Content (%)	Grain size (mm)
Quartz (Qtz)	36	0.30∼5.12
K-feldspar (Kfs)	5	0.35∼3.13
Biotite (Bt)	12	0.20∼1.26
Zircon (Zrn)	2	0.05∼0.12