Assertion: red beryl | /r/HasProperty | rare
Facets:
value: extremely
type: DEGREE
Source sentences:
text: Red beryl is extremely rare because the conditions needed to supply the color-producing manganese at the proper time to a beryl-forming environment is improbable.
text: Red beryl is a rare mineral because its formation requires a unique geochemical environment.
text: Red beryl, which has been assigned a few other names, is a rare variety known from a handful of localities.
text: Red beryl is an extremely rare gemstone colored by trace amounts of manganese.
text: Red beryl is an extremely rare variety of beryl that receives its red color from trace amounts of manganese.
text: Red beryl is the rarest variety of beryl and it is known in the trade as 'bixbite'.
text: Red beryl is so rare that it is wise to always insist on certification from a recognized gemological lab when buying this gemstone.
text: Red beryl, or bixbite, is exceptionally rare.
text: Red beryl is so rare that it has only been discovered in a few places in the world, primarily in mines in the states of Utah and New Mexico.
text: Red beryl is very rare and has been reported only from a handful of locations: Wah Wah Mountains, Beaver County, Utah; Paramount Canyon and Round Mountain, Sierra County, New Mexico, although the latter locality does not often produce gem grade stones; and Juab County, Utah.