Mineral: Opal with Orpiment inclusions (variety forcherite)
Locality: Holzbrücken, Ingering, Knittelfeld, Murtal District, Styria/Steiermark, Austria
Dimensions: 8,5 x 6 cm

Description: "Forcherite" is a very rare variety of opal with orpiment inclusions, which cause the yellow color. Old label from an unknown collection.

All pictures, text, design © Forum FMF 2006-2025