Frozen liquid that is very like mushrooms

If we look at it at a glance, we can make a decision that this is mushrooms, because at a glance we see it looks like mushrooms, but the reality is this is the liquid that comes out of the wood and then freezes.

This frozen liquid is very unique because if it is closely monitored it looks like a coral in the ocean, but the unique frozen liquid if we hold and touch it feels very soft.