pyroclastic [Adjective] + rock [Noun]

Strength Strength Dispersion
A:
9
CHISQ:
2,521.56
AWT:
54,346,040
TTEST:
2.99
G2:
96.76
FAWT:
1
MI:
8.14
LOGLOG:
25.8
JD:
-0.01
MI3:
14.48
DICE:
0.2
RANGE: