Dopplerite
DOPPLERITE, a naturally occurring organic substance found in amorphous, elastic or jelly-like masses, of brownish-black colour, in peat beds in Styria and in Switzerland. It is tasteless, insoluble in alcohol and ether, and is described by Dana as an acid substance, or mixture of different acids, related to humic acid.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)
