Quarz Donut | Brasilien crinoid The delicate and intricate structure

The delicate and intricate structure of the crinoid's arms and crown is beautifully preserved

is a non-laminated layer about 18 inches (46 cm) thick that also contains abundant detailed fossils but is more difficult to work with because it is not composed of split layers

Significant deposits are Nizhny Tagil (Siberia)

220 million years ago) cut in cross-section and polished to reveal the rich colors for which this site is so famous

despite their large size

Quarz Donut | Brasilien crinoid The delicate and intricate structureOrigin: Brazil Size: H40cm W32cm D10cm Description: This expertly polished specimen is shaped like a donut with a central oculus, highlighting the brilliant transparent and white gradation, with striking veins of white quartz. It is aesthetically mounted on a custom black stand. Additional Information: Quartz is one of the most common minerals. It is a specific compound (silicon dioxide) that has a specific crystalline form. Quartz has attracted