impermeable [Adjective] + rock [Noun]

Strength Strength Dispersion
A:
7
CHISQ:
1,122.87
AWT:
21,862,229
TTEST:
2.63
G2:
68.32
FAWT:
2.49
MI:
7.34
LOGLOG:
20.61
JD:
0.26
MI3:
12.96
DICE:
0.15
RANGE: