Glass or Lab?

HI everyone,
I recently got this gemstone in a parcel i ordered. it is supposed to be garnet but the inclusions are very unusual based on the amount of round bubbles my best guess is either glass or synthetic. Hoping someone can confirm.

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If you can do an RI test that would help give you your answer.

-Daniel

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Isaac, welcome to the community!

I agree with @DanielB66512! An RI test would definitely help. A polariscope could help too.

Out of curiosity, was the entire parcel supposed to be a specific type of gemstone?

Do the facet edges look sharp and clean or somewhat rounded?

A quick test that could help, would be an immersion test using water. Some types of common glass will almost completely disappear when submerged in water. It would help to have a reference stone (not from the parcel), but similar in color if possible.

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Issac,
Various gem species (including garnets) can have what looks like air bubbles, but can be natural inclusions like CO2 bubbles, multi-phase or even solid inclusions.
Try for the RI, and also see if you can get a look through a microscope.
Many garnets are attracted to a strong magnet and can be pulled across a counter. This test is not a 100% determination, but can be a strong indicator of its species.

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