UltraOkay

Is it OK for your ultrasonic cleaner?

Amethyst

Yes
Check first
No

Amethyst handles ultrasonic cleaning – just not heat or rapid temperature changes.

Updated from your answers.

How to do it

Time
3 min
Water
Lukewarm, 30–40 °C

Let the piece reach room temperature before it goes into the lukewarm water.

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

GIA writes that ultrasonic cleaning is usually safe except for dyed or fracture-filled stones. Amethyst should not be exposed to heat, and rapid temperature changes can make it crack.

Watch out for

  • Never hot water
  • Dyed or fracture-filled: avoid

Sources

  1. GIA – amethyst care
  2. Stuller – To steam or not to steam

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