Cracking Mode Analysis of Crack Initiation in Rocks under Uniaxial Compression

Table 1

Basic properties of the rock specimens.

Serial no. of specimen	Rock type	Porosity (%)	Grain size	Density (g/cm^3)	Image
A	Tight sandstone	7	Fine	2.57
B
C
D	Loose sandstone	12.3	Fine	2.18
E
F
G
H	Granite	1.2	Fine to medium	2.78
I
J