Originally posted by Gunther Ultrabolt Novacrunch:

Originally posted by Ǵ̶͓̂͑lí̴̤̀̄́tcĥ̸:

Your second sentence basically answers this.

If you dig around them until they are suspended in air, then a single chunk breaking after that will explode the whole thing.

Dig around silver until it's floating, then mine a single chunk - boom.

That is not true...I've done this and had to beat it down then suddenly it broke.

Which would indicate there was a small piece of ground still attached to the node.