Assertion: mineral's streak | /r/HasProperty | the color of a powder
Facets:
value: simply
type: OTHER
Source sentences:
text: The streak of a mineral is simply the color of a powder that’s left behind when the mineral is scratched along a white, ceramic, unglazed tile.
text: The streak of a mineral is the color of the powder produced when it is dragged across an un-weathered surface.