Black Tourmaline Crystals

Canadian Pinolite rough cut

Gemrocks Black Tourmaline mining

In 2021, Gemrock Peru started mining Black Tourmaline in the desert mountains of Lima province.

We therefore can provide you with rough rock and Tourmaline crystals in any quantity and several sizes and qualities in packages of half a kilo, a kilo or bigger amounts. 

Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. The most common species of tourmaline is schorl, the sodium iron member of the group. It may account for 95% or more of all tourmaline in nature.

The early history of the mineral schorl shows that the name “schorl” was in use prior to 1400 because a village known today as Zschorlau (in Saxony, Germany) had a nearby tin mine where black tourmaline was found.

The area we are working in is a skarn area: Epidote and Tourmaline are common minerals in skarn areas. Most skarns form when carbonate rocks such as limestone, dolomite stone or marble are intruded by a magma body with contact metamorphism because of the heat being the primary agent of change. Then, as the magma cools, it releases water which moves through the surrounding rock by flowing or diffusing through pore spaces, fractures, and even the mineral grains that make up the rock. These acidic waters are superheated and supersaturated with dissolved metal ions, especially calcium and silicon. As it invades the rock, the hot, acidic, metal-laden water dissolves, replaces, recrystallizes and alters minerals in the rock.

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Cutting services

Do you need reliable high-quality cutting services for a reasonable price?  Are you looking for a service provider that is willing to develop new products according to your requirements? Would you like to get expert advice in order to improve your product? Do you wish for someone to optimize the process and get the most out of your rough? Just talk to us.

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gemrockinternational@gmail.com

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