noun
Refers to the opaque, impure variety of silica, usually red, yellow, brown or green, used as a gemstone or for ornamentation. The cross-reference 碧玉 (へきぎょく) is a synonym, but ジャスパー is the common loanword.
See also: 碧玉
彼女はジャスパーのネックレスを身につけていた。
She was wearing a jasper necklace.