Gold is a rare and precious element that has been used for thousands of years in jewelry and industry. However, it is interesting to note that gold is not only found in mines, but also in certain living organisms, especially fungi. In this talk, we will explore the presence of gold in fungi and its importance to our environment.
Since its discovery, sylvanite has been found in several places around the world, including Canada, Romania, Germany, France, Italy, Australia, China and Japan. Sylvanite is a mineral that occurs as elongated crystals, often silvery or silvery-white in color, with a hardness of 1.5 to 2.5 on the Mohs scale. It is usually associated with other minerals such as krennerite, calaverite, petzite, hessite and nagyagite.
A NEW TREASURE. It was in 1992 that a fabulous and very rare discovery or "rediscovery" was going to make a gift to mineralogists and geologists all over the world. In the heart of the Sierra Nevada, a rock already on the list of rarities, will unveil an unprecedented treasure in an extraordinary petrographic association.
Lode gold is of course the lord of these places; inconspicuous, it is rarely detected with the naked eye, but it is deeply rooted in popular myths of these regions; It’s a fascination that has lasted for ages! It has gone from myth to reality since the industrial revolution, when the first engineers at the turn of the century began to believe in it by making the first discoveries of the great saga of the mining industry.
Gitologie Aurifere. Although gold is one of the rarest metals on Earth, averaging in the order of a milligram per tonne of rock only, there are places in the earth's crust where this metal is concentrated as far as sometimes 1 kilogram per tonne in rocks and veins, thus allowing an economically profitable extraction.
