orpiment
oxford
views updated May 08 2018orpiment Sulphide, As
2S
3; sp. gr. 3.5;
hardness 2.0; yellow or yellowish-orange; foliated or powdery
aggregate; occurs in low-temperature veins and hot-spring deposits, commonly associated with
realgar and
stibnite.
A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY
orpiment
oxford
views updated May 21 2018orpiment yellow arsenic. XIV. — (O)F. — L.
auripigmentum, f.
aurum gold +
pigmentum PIGMENT.
The Concise Oxford Dictionary of English Etymology T. F. HOAD
