UltraOkay

Is it OK for your ultrasonic cleaner?

Marcasite

Yes
Check first
No

The stone handles ultrasonic cleaning, but marcasite is often glued into silver.

Updated from your answers.

A few questions to be sure

Are the stones glued (no metal holding them)?
Is the piece old or an heirloom?

How to do it

Time
3 min
Water
Lukewarm, 30–40 °C

Only if the stones sit in a metal setting. Short time, and count the stones afterwards.

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 marcasite as safe in an ultrasonic cleaner. In jewelry, though, the small stones (usually pyrite) are often glued or pressed into the silver, and they come loose easily.

Watch out for

  • Glued stones: avoid
  • The silver tarnishes anyway – polish afterwards

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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