Opal with Orpiment inclusions (variety forcherite) - Holzbrücken, Ingering, Austria - 8,5 x 6 cm
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.