Chemistry, asked by jtanishq55, 2 months ago

give an example of positive crystal

Answers

Answered by gillsilakram001

0

Answer:

quartz SiO2, sellaite (magnesium fluoride) MgF2, rutile TiO2), ne > n o

Explanation:

hope it helps you yrrrrr

Answered by InstaPrince

3

Answer:

Here's Your Answer

Explanation:

Positive crystals (Opt) a doubly refracting crystal in which the index of refraction for the extraordinary ray is greater than for the ordinary ray, and the former is refracted nearer to the axis than the latter, as quartz and ice; -- opposed to negative crystal, or one in which this characteristic is reversed, as Iceland spar, tourmaline, etc.

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