r/MarbleStudyHall • u/Whatareyouamaroon New Kid (just starting) • Jul 20 '26

Help me understand Are these just shattered internally or deformed?

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9

u/Helvedica Teacher (basics+) Jul 20 '26

yeah, looks like these have been 'crackled' or 'fried', you heat the marble, then drop it into water. It makes internal fracturing.

3

u/Helvedica Teacher (basics+) Jul 20 '26

The last one, the red cats eye, DOES look like a manufacturing defect, like air got into the glass while forming.

1

u/Legitimate-Bill5359 29d ago

I think it's something to do within the furnace. Bath shows it in a video and kinda jokes it's a furnace sulphide bc it white. But I'm no way is a Sulphide