Assertion: blue amber | /r/HasProperty | rare
Facets:
value: very
type: DEGREE
Source sentences:
text: Other uncommon colors include red amber (sometimes known as "cherry amber"), green amber, and even blue amber, which is rare and highly sought after.
text: Blue amber is a rare variety of amber resin that exhibits a blue coloration.
text: It is very rare and expensive.
text: Other more uncommon colors include red amber (sometimes known as "cherry amber"), green amber, and even blue amber, which is rare and highly sought after.
text: Blue amber is rare, found mainly in the Dominican Republic with some production from Indonesia and Mexico.