血けつ玉ぎょく髄ずいMeanings1nounbloodstone; heliotropemineralogyA dark green chalcedony with red spots; used as a gemstone. Technical term in mineralogy.See also: 血石血けつ玉ぎょく髄ずいは、緑みどり色いろの地じに赤あかい斑はん点てんがある鉱こう物ぶつです。Bloodstone is a mineral with red spots on a green background.
