Assertion: cryolite's index | /r/HasProperty | close to that of water
Facets:
value: very
type: DEGREE
Source sentences:
text: It is translucent to transparent with a very low refractive index of about 1.34, which is very close to that of water; thus if immersed in water, cryolite becomes essentially invisible.
text: It is translucent to transparent with a very low refractive index of about 1.34, which is very close to that of water; thus if immersed in water, cryolite becomes essentially invisible.