Assertion: chalcopyrite's streak | /r/HasProperty | black
Facets:
Source sentences:
text: Chalcopyrite - different streak (black), less dense (4.1 - 4.3), harder (3½ - 4) (also known as "Fools" Gold) - different streak (black), less dense (4.8 - 5.2), harder (6 - 6½)- different streak (black), less dense (4.1 - 4.3), harder (3½ - 4)
text: Chalcopyrite - different streak (black), less dense (4.1 - 4.3), harder (3½ - 4) (also known as "Fools" Gold) - different streak (black), less dense (4.8 - 5.2), harder (6 - 6½)- different streak (black), less dense (4.1 - 4.3), harder (3½ - 4)