Note:  Do not rely on this information. It is very old.


Haematin, a coloured material formed by the decomposition by acids or alkalies of the haemoglobin (q.v.) of the blood. It is usually obtained as a scaly mass of a blue-black colour, which when powdered appeals dark-brown. It is sometimes found in the faeces, and in certain poisoning cases in the urine. It is usually identified by the spectroscopic examination of its solution.

“You will keep in perfect peace him whose mind is steadfast, because he trusts in you.”
Isaiah 26:3