Assertion: phosphorus's form | /r/HasProperty | black phosphorous
Facets:
Source sentences:
text: The third form, black phosphorous, is made under high pressure, looks like graphite and, like graphite, has the ability to conduct electricity.
text: There are other modifications - a range of amorphous forms that is called red phosphorus, because of the color, another few forms of crystalline and amorphous phosphorous that is called black phosphorous, again because of the color, and a polymeric form called violet phosphorous.