Assertion: stone | /r/HasProperty | crystal
Facets:
Source sentences:
text: A gem can be a crystal whereas a crystal will not always be a gem.
text: A gem can be termed a crystal whereas a crystal cannot be termed a gem.
text: However, not all gemstones are crystals either.
text: A gem can be a crystal whereas a crystal will not always be a gem.
text: A gem can be a crystal, while a crystal cannot be called as a gem.
text: A gem can be a crystal, while a crystal cannot be called as a gem.
text: Many gems are crystals which are classified by their crystal system such as cubic or trigonal or monoclinic.
text: Minerals and gems are crystals.
text: A gem can be termed a crystal whereas a crystal cannot be termed a gem.