mysterious [Adjective] + stone [Noun]

Strength Strength Dispersion
A:
8
CHISQ:
34.27
AWT:
12,494,732
TTEST:
2.37
G2:
19.36
FAWT:
4.35
MI:
2.61
LOGLOG:
7.84
JD:
0.61
MI3:
8.61
DICE:
0.13
RANGE: