Topic: Glass Apple Weight - Strange Inclusions

[RoyJ99]

Picked up this little apple shaped weight yesterday, pretty sure it's Wedgwood although it is not signed. What I'm wondering is it has some very strange, chalk like inclusions in it, almost like little pebbles. What are they and what causes them? The largest of them protudes out form the body but is still cased in glass.

[paperweights]

Could be stones from the crucible or pot used to hold molten glass.  When the pot fails it gives off pieces of ceramic.