Chalcedony - France - crystal minerals 9.3cm / 256g / BA77

Chalcedony belongs to the silicate group. It mainly contains silicon and has the same chemical formula as Quartz. It is a compact variety. Chalcedony occurs in massive, hummocky or stalactitic forms. It is a very hard stone. Agate and Onyx are a zoned variety. Its color is generally white, but depending on the impurities it contains, it is also found in red or blue.

Unique piece - Contractual photos

Origin: crystal minerals from France / Charente

Dimensions: 9.3 x 6.4 x 4.3 cm

Weight: 256 g