Assertion: tourmaline | /r/HasProperty | rare
Facets:
value: quite
type: DEGREE
Source sentences:
text: The green hues blend imperceptibly into blue-green, but tourmaline is quite rare.
text: Because tourmaline is a rare gemstone, the price of these hair dryers can get quite steep, depending on the quantity and the way it is incorporated into the dryer.
text: And they are rare.