Assertion: magnetite | /r/HasProperty | black
Facets:
value: in colour
type: OTHER
value: with a metallic luster
type: OTHER
Source sentences:
text: Magnetite is black or brownish-black, with a metallic luster, a Mohs hardness of 5.5–6.5 and a black streak.
text: Partial reduction with hydrogen at about 400 °C produces magnetite, a black magnetic material that contains both Fe(III) and Fe(II):
text: Magnetite is black or brownish-black, with a metallic luster, a Mohs hardness of 5.5–6.5 and a black streak.
text: Another important difference between magnetite and hematite is that the magnetite is black in colour, but hematite has a variety of colours.
text: Magnetite is black in colour, and its streak is also black.
text: Magnetite is black in colour, but hematite has a variety of colours.