Moonstone
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A moonstone might have inclusions called centipedes. These tiny cracks in the gem look like the many-legged creatures they’re named after! - Photo by Dr. E. J. Gübelin/GIA
This is a close-up of a moonstone’s centipede inclusion. The crack seems to be crawling, doesn’t it?
These whitish inclusions in a moonstone look like snowballs, so that’s what they are often called. - Photo by Dr. E. J. Gübelin/GIA
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