Which of these statements about gem synthesis is true? 1) A few diamond simulant

Question

Which of these statements about gem synthesis is true?

1) A few diamond simulants have a hardness of 10. 2) Like natural gems, synthetic gems often have inclusions that can tell us where they came from. 3) Simulant gemstones are identical to their natural counterparts in every way. 4) Synthetic diamonds are identical to natural diamonds because they both contain Silicon Carbide. 5) Flux grown synthetic emeralds can be produced (with the right chemicals) on your home stovetop, just like sugar crystals.

Explanation / Answer

diamond simulants formed by other materials which having lower hardness than natural diamond like white sapphire (9) , spinel (8), Moissanite (9) etc. but hardness of them is not equal to 10

no, we cant tel that which synthetic gems where came from like natural gems because synthetic gems can be made in any labroratory with right chemicals but natural gems formed in very specific conditions only

simulant gemstones are identical to natural gemstone but not at every aspect. some property always different from the natural gem

synthetic diamonds are identical to real diamonds at all properties synthetic diamonds have oxide rather than silicon.

if we have right material and technique and equipment then we can form any synthetic gemstone anywhere so the right option is

5) Flux grown synthetic emeralds can be produced (with the right chemicals) on your home stovetop, just like sugar crystals.

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