Assertion: tourmaline | /r/HasProperty | common
Facets:
value: quite
type: DEGREE
value: in hydrothermal system
type: LOCATION
value: in the
type: LOCATION
value: around granite
type: LOCATION
Source sentences:
text: Tourmalines are found in differentiated dikes of silica-ruch intrusive rocks and is quite common around granite, where pegmatitic, pneumatolytic mineralizations are abundant.
text: tourmaline from this country are uncommon in the
text: Most species of Tourmaline are found in Pegmatite, a type of ignenous rock which typically develops underwater Mining: Tourmaline is a fairly common mineral, but gem quality crystals are relatively rare, and found almost exclusively in Pegmatite.
text: Tourmaline is a common boron-bearing mineral in hydrothermal system and has been widely used as a mineral probe to reconstruct geological processes because of its broad range in composition and resistance to metasomatic alteration.
text: Although tourmaline is a common pyroelectric material, the origins of pyroelectricity in tourmaline at varying temperature are still unclear.