1. It is said to have produced copper, iron and orpiment . 2. Realgar, orpiment , and arsenolite contain arsenic but magnetite removes arsenic from water. 3. Arsenic, as realgar ( ) and orpiment ( ), was known in ancient times. 4. Orpiment ( As 4 S 4 ) are somewhat abundant and were formerly used as painting pigments.5. With 46 % arsenic content, arsenopyrite, along with orpiment , is a principal ore of arsenic. 6. The manuscript is written in the Newar script in yellow Nepalese paper coated with harital ( orpiment ). 7. Orpiment is yellow to brownish gold, cinnabar is deep red and getchellite is a bright orange red.8. Janssens was consulted by Th�odore de Mayerne on handling orpiment ( a poisonous yellow pigment ) and painted his portrait. 9. In addition to describing his usage of orpiment to de Mayerne, Janssens also told Daniel King his technique for draperies. 10. Historically European vermilion often included adulterants including brick, orpiment , iron oxide, Persian red, fugitive lead-oxide pigment.
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