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Peltier of some sort?


Parmcat

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I like to distinguish between bubble pops and bubble pop craters. They both start with bubbles, but bubble pops happen when the glass is still hot and a subsurface bubble burst - they have smooth, rounded edges. Bubble craters happen when the bubble is subsurface and is initially covered by a thin pane of glass after it cools. At some point, the pane shatters and you're left with a crater that has rough edges and a smooth, rounded bottom.

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On 7/21/2025 at 8:18 PM, Parmcat said:

Are some of those "holes" as made?

 

All are as-made my freind--this one is a Pelt that shows up as a Pelt.

I love a good Pelt with blow holes--this one is nice!

Marble--On!!

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No Oxblood. What you’re seeing is what “burnt” red ribbons look like when the glass got to hot. That’s also why the bubbles exploded.🔥

RAR

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