SOLD | Große Rote Jaspiskugel | Südafrika Stilbite but when found mixed with

but when found mixed with clay the color is yellowish white or gray

and can take millions of years

therefore most specimens are small

Beschreibung:Dieses außergewöhnliche skulpturale Exemplar zeigt ein Duo von Ammoniten aus der späten Kreidezeit

Like the zeolites

SOLD | Große Rote Jaspiskugel | Südafrika Stilbite but when found mixed withOrigin: South Africa Size: Diameter 21cm Description: Spherical, polished to bring out rich red and gold tones. Cut in Idar Oberstein, Germany. Additional information: Jasper, opaque, fine grained or dense variety of the quartz mineral chert, which presents various colors. Mainly brick red to brown red, it owes its color to added hematite; but when mixed with clay the color is yellowish white or gray, or with goethite brown or yellow. Jasper, long