Webster's Revised Unabridged Dictionary · 1913

Bloodstone

Bloodstone ({not transcribed}) , noun

(a)
(Mineralogy) A green siliceous stone sprinkled with red jasper, as if with blood; hence the name; -- called also heliotrope.
(b)
(Mineralogy) Hematite, an ore of iron yielding a blood red powder or “streak.”