Vintage 1960s Marcasite Feather Spray Silver BroochVintage 1960s marcasite brooch featuring feather like spray of sterling silver with glistening marcasite stones. Marcasites are actually Pyrite also known as Fools Gold. It was used in jewellery due to it's ability to catch the light, giving a diamond effect. The brooch has a number of hallmarks indicating the piece was imported to London. The piece is most likely from the 1960s due to tis rollover clasp and before the 1970s when letter date