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how do you tell the difference between a naturally formed quartz crystal and a crystal grown in a lab?
can you tell the difference between lab grown and a naturally formed quartz crystals? How? what are some things to look for?
yes.
it isn’t easy.
Quartz is one of the hardest synthetics to spot with the least amount of concern about it. Hard to interest the GIA in discerning a $20/ct parcel of amethyst from a $1/ct parcel.
They use xray crystallography.