
Glass encrusted cameos.Patented by Apsley Pellatt of London.
Found on
http://www.glamorganantiques.co.uk/glossaryglass.htm

Sulphides refers to a mineral group where sulphur is combined with one or more metals. The sulphides form an important class of minerals that includes the majority of the ore minerals. With them are classed the similar but rarer sulpharsenides, arsenides, and tellurides. Most of the sulphide minerals are opaque with distinctive colours and characte...
Found on
http://www.probertencyclopaedia.com/browse/HS.HTM

Salts of hydrogen sulphide, which must not be confused with sulphites (salts of sulphurous acid or synonym for sulphur); see there.
Found on
https://glossary.wein.plus/sulphides
No exact match found.