Assertion: agate | /r/HasAspect | a hardness of about 7
Facets:
value: on the moh's scale
type: OTHER
Source sentences:
text: Agate is a member of the chalcedony family, or a microcrystalline quartz, and it has a hardness of about 7 on the Moh's scale.
text: Agate has a hardness of about 7 on the Moh's scale and agate cabochons take a great polish.
text: Agate has a hardness of about 7 on the Moh's scale.
text: Agate has a hardness of about 7 on the Moh's scale.