Assertion: paraiba tourmaline | /r/HasProperty | rare
Facets:
value: always
type: DEGREE
value: very
type: DEGREE
Source sentences:
text: So even with the new find, this means the supply will always be limited and Paraiba always be very rare and expensive.
text: Paraiba Tourmaline: rare neon green or blue, colored by copper
text: Paraiba tourmaline is one of the rarest gemstones in the world today,” said Joe Gil of Akiva Gil, a leading designer and purveyor of natural gemstones.