Assertion: crystalline monoclinic selenium | /r/HasProperty | deep red
Facets:
Source sentences:
text: The most stable form of the element, crystalline hexagonal selenium, is a metallic gray, while crystalline monoclinic selenium is a deep red.
text: Crystalline monoclinic selenium is a deep red color.
text: Crystalline monoclinic selenium is a deep red; crystalline hexagonal selenium, the most stable variety, is a metallic gray.