Assertion: chalcedony | /r/HasProperty | resistant
Facets:
value: often
type: DEGREE
value: to physical
type: OTHER
value: to weathering
type: CAUSE
value: to both chemical
type: OTHER
value: highly
type: DEGREE
Source sentences:
text: The reason for this is that chalcedony has a hardness of 6 to 7 and is highly resistant to both chemical and physical weathering, whereas the host matrix volcanic rock consists of a high percentage of minerals that are both softer and more-readily broken down through weathering and erosion.
text: Because chalcedony is often harder and more weather resistant than the host rock, the hollow spheres resist the effects of erosion and are left behind as the host rock is eroded.