Information

Gogotte

Gogottes are without any doubt, among the most extraordinary art pieces created by nature. They are exclusively found in Fontainebleau, France. The age of the sand layer Gogottes are found in dates back to approximately 30 million years ago. However the Gogottes itself are formed in two much more recent periods, namely  30.000/50.000 and 300.000 years ago.

From a geological point of view a Gogotte is a sandstone concretion firmly bonded with siliceous cement. Grains of sand have been semented in place with silica deposited by water circulating within the sand layer.

Chemically speaking a Gogotte consist almost entirely of silica and therefore, has approximately the same composition as a quartz crystal.

Black Tourmaline

Tourmaline is crystal. Well-known  for its adoption Jewelry. It is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium.

Tourmaline is classified as a semi-precious stones. Tourmalines are found in all possible colors, tints and combinations of shades one can think of. The varieties of this gemstone span the widest color ranges in the world of minerals. 

Black Tourmaline, also called Schorl is the black, opaque, sodium iron rich variety of Tourmaline, a complex borosilicate with a trigonal crystal system.

Tourmalines usually occur as long, three-sided prisms, which often have well-terminated ends.