Assertion: carnelian | /r/HasProperty | rated about 7
Facets:
value: on the mohs hardness scale
type: OTHER
Source sentences:
text: First of all, carnelian is a strong durable gemstone rated about 7 on the Mohs hardness scale so it will not scratch easily with a knife or a nail.
text: First of all, carnelian is a strong durable gemstone rated about 7 on the Mohs hardness scale so it will not scratch easily with a knife or a nail.
text: First of all, carnelian is a strong durable gemstone rated about 7 on the Mohs hardness scale so it will not scratch easily with a knife or a nail.