Assertion: mineral's gravity | /r/HasProperty | measured
Facets:
value: according to the metric system
type: OTHER
value: almost always
type: TEMPORAL
value: because of the convenience
type: CAUSE
Source sentences:
text: Specific gravity almost always is measured according to the metric system, because of the convenience: since the density of water is 1 g per cubic centimeter (g/cm3), the specific gravity of a substance is identical to its density, except that specific gravity involves no units.