Travertines range in hardness from 4-5 on the ten-point MOHS scale (diamonds are 10;
(Travertines; range; L:in hardness; from 4-5 on the ten-point MOHS scale (diamonds are 10) (diamonds; are; 10)
Travertines diamonds
range are
L:in hardness from 4-5 on the ten-point MOHS scale (diamonds are 10
10