Assertion: amber | /r/HasAspect | hardness
Facets:
value: on the mohs scale
type: OTHER
value: between 3
type: LOCATION
value: between 2.0
type: OTHER
value: between 2
type: LOCATION
value: between 2.5
type: OTHER
Source sentences:
text: Most amber has a hardness between 2.0 and 2.5 on the Mohs scale, a refractive index of 1.5–1.6, a specific gravity between 1.06 and 1.10, and a melting point of 250–300 °C.
text: Amber has hardness on the Mohs scale between 2 and 3 – approximately 2.5.