radiolucent [Adjective] + stone [Noun]

Strength Strength Dispersion
A:
10
CHISQ:
9,859.33
AWT:
54,356,699
TTEST:
3.16
G2:
144.81
FAWT:
1
MI:
9.95
LOGLOG:
33.04
JD:
-0.01
MI3:
16.59
DICE:
0.19
RANGE: