As " Harzer Bloodstone" a Jasper is designated, which from the chalkopyrite pit” Einheit" with Elbingerode in the Unterharz originates " Harzer Bloodstone" consists of pyrite, quartz, little feldspar and by Hematite (red iron stone) colored hostrock, which is found only in a place in a depth of approximately 350 meters in the former mine.