Assertion: opal | /r/CapableOf | occur as a network of veins
Facets:
Source sentences:
text: Matrix Opal - Precious Opal interspersed within a host rock, usually ironstone or sandstone, where the Opal occurs as a network of veins or an infilling of pore spaces; usually displays “pinfire” color in the natural state.
text: Matrix Opal - Precious Opal interspersed within a host rock, usually ironstone or sandstone, where the Opal occurs as a network of veins or an infilling of pore spaces; usually displays “pinfire” color in the natural state.