Diamond has a refractive index of 2.417 and a specific gravity of 3.5, while Str

Question

Diamond has a refractive index of 2.417 and a specific gravity of 3.5, while Strontium Titanate has a refractive index of 2.409 and a specific gravity of 5.13.

You are given two gemstones that are identical in size, color, and cut. You are also told that one is a real diamond, and the other is strontium titanate. Without destroying either gemstone (no scratching) which is the real diamond?

Question 1 options:

1) Since they are the same size and weight, you must rely on the "read through" effect (tilting the stone to see light pass through it). 2) The real diamond will be lighter. 3) Refractive index will not easily distinguish between the stones - you must use a scratch test. 4) Each stone will have the same carat weight, so you must carefully measure the refractive index of each stone. 5) The real diamond will be heavier.

Explanation / Answer

Answer: Since they are the same size and weight, you must rely on the "read through" effect (tilting the stone to see light pass through it).

We have to do distinguished stimulants form original diamonds following observations

They are

Read through effect

Refractive index

Hardness

Specific gravity

Reflection pattern

Shadow patterns

Dispersion.

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