Make your own pearls



Osmina pearls look pearly, but they really are parts of a shell. Rob shows how to make your own from common seashells.

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12 thoughts on “Make your own pearls”

  1. Rob, can you explain exactly what the salt does to the acid that accelerates the process? Adding salt to vinegar is something you guys did quite a lot – for removing eggshells to get bouncy eggs or rust from nails, etc, and I always thought that it increased the strength of the acid, or transformed it into a stronger acid. However I've been trying to understand it online, and apparently that's not the case – there are some explanations as to how it may make the vineger better suited for some tasks such as cleaning – they talk about ionic bonds, and my non-chemist's brain is quite confused by the explanations. Love and Peace.

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