Coral/glass like deposits in Timberline ash

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jbakerinc

New Member
Oct 19, 2015
24
Bedford PA
Cleaning the ashes out I found these coral glas like brittle deposits in my ash.

What are they?

[Hearth.com] Coral/glass like deposits in Timberline ash
[Hearth.com] Coral/glass like deposits in Timberline ash

are these clinkers? after a bit of research it led me to clinkers. any reason to be worried about them?
 
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Fused silicas from the wood. We get a lot of them
 
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