Assertion: hydrophane opal | /r/HasProperty | porous
Facets:
value: quite
type: DEGREE
Source sentences:
text: This is typical of hydrophane opal, which is dry and porous and can absorb water without any damage to the stone and sometimes with no appreciable affect on the color flash.
text: However, because the hydrophane opal is quite porous, we recommend avoiding exposure to chemicals or cosmetics.