pyroclastic [Adjective] + rock [Noun]

Strength Strength Dispersion
A:
8
CHISQ:
899.11
AWT:
54,346,040
TTEST:
2.8
G2:
70.83
FAWT:
1
MI:
6.83
LOGLOG:
20.5
JD:
-0.01
MI3:
12.83
DICE:
0.17
RANGE: