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.

“What a blessed condition is a true believer in! When he dies, he goes to God; and while he lives, everything shall do him good. Affliction is for his good. What hurt does the fire to the gold? It only purifies it.”
–Thomas Watson, A Divine Cordial