UltraOkay

Is it OK for your ultrasonic cleaner?

Agate and carnelian

Yes
Check first
No

Often OK, but agate is frequently dyed and is porous.

Updated from your answers.

A few questions to be sure

Is the piece strung on thread, silk or elastic?

How to do it

Time
3 min
Water
Lukewarm, 30–40 °C

Short time. Stop if the water changes colour.

With these answers we do not recommend the ultrasonic cleaner, so there is no how-to.

Pick your cleaner to see if it fits, which setting to use and what its manual says.

Why

Stuller lists carnelian and tiger's eye as usually safe. One manual lists agate as unsuitable, and dyed agates can lose colour. The sources disagree, so check first.

Watch out for

  • Dyed agate: avoid
  • Strung on thread: avoid

Sources

  1. Stuller – To steam or not to steam
  2. Velleman – ultrasonic cleaner manual (PDF)

Cleaners that fit this

Ranked by fit, never by commission.

How we rank: models made for this kind of item first, then how easy the model is to buy where you are, then how much of its spec is confirmed in a source.

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    Good to have for this

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    Clean it safely another way The safe way while you check

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    Good to know

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