Submitted by HGHUA t3_z8rlw5 in mildlyinteresting
SuitcaseShake t1_iyddg9h wrote
If it's a ceramic wall piece it's a type of glaze that grows "crystals" during the firing process.
PubScrubRedemption t1_iydfo1f wrote
I'm inclined to agree, though it seems like an odd thing to hang framed on a wall.
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