Sclerotherapy is a treatment of injecting a solution to harden the veins.
Sclerotherapy
A scab
Put ice
It is called Lava
They contain a substance called hardener.
permineralization
It is called a magmatic intrusion.
permineralization
Sedimentary rock.
Molten rock is magma. It is called lava once it has cooled and hardened.
It is called arteriosclerosis, or atherosclerosis.
Sulphur, in a process called vulcanization.
The tree sap is called "resin" and if it is fossilised it is called "amber".