SOLD | Große Rote Jaspiskugel | Südafrika Stilbite Quartz has attracted attention from

Quartz has attracted attention from early times

revealing the layered structure

Like the zeolites

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

SOLD | Große Rote Jaspiskugel | Südafrika Stilbite Quartz has attracted attention fromOrigin: 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