Black tourmaline pebble Brazil AA

Black tourmaline pebble of approximately 30-50mm (thickness between 5 and 7mm)
Sold individually.
Dimensions, shapes and color shades may vary from one pebble to another.

The presence of cracks or cavities on tourmaline is a normal phenomenon.
There is no such thing as a perfectly smooth tourmaline, even when polished.

This is a true tourmaline and not a stabilized tourmaline.

Black tourmaline is the most well-known variety of tourmaline. It is also known as schorl. It is said to be black, but it can also be dark brown. It has gained notoriety over time due to its many properties.
So black tourmaline, schorl, is the most common tourmaline and can sometimes measure up to 2 m high. Its composition, very rich in iron, gives it this black, opaque and intense appearance. We can emphasize that it is the only type of tourmaline with a uniform color.
Thus, schorl, a mineral species of tourmaline, belongs to the group of silicates, subgroup of cyclosilicates. The name "schorl" comes from German. It has a vitreous luster, with a conchoidal fracture, its line is white. It is a mineral from metamorphic rocks, leucogranites and pegmatites.
Like all tourmalines, schorl is composed of a complex silicate of boron, sodium, and aluminum and has a hardness of 7 to 7.5 on the Mohs scale. Its crystal system is rhombohedral. Schorl, or black tourmaline, occurs as elongated, well-formed, prismatic crystals with striated elongation, or as small aggregates of small crystals.
Black tourmaline is a very ancient stone, cited in many traditions, notably among the Brazilians, Egyptians, Greeks, and Indians. It is a stone renowned for its protective properties. It is also a grounding stone used today in lithotherapy and meditation. Due to its piezoelectric properties, black tourmaline is also used in electrochemistry.

The main deposits are located in Brazil, Madagascar, etc.

In lithotherapy, tourmaline is a very powerful anchoring stone. It helps keep one's feet on the ground, calms scattered thoughts, and refocuses attention. It soothes the mind and irrational fears. It allows one to connect with one's inner self, perceive deep needs, and identify the cause of certain blockages. These are often childhood traumas. It is an excellent meditation stone that channels the mind's wanderings.
Thus, schorl has strong protective virtues. It is capable of absorbing negative energies released by certain angry, jealous or envious people. It is said to neutralize harmful influences and to be able to absorb electromagnetic waves. It is a stone of protection for both people and places. Placing various black tourmalines in the house, wearing a black tourmaline bracelet allows the person or the home to be protected. This black stone removes the negative consequences of an unhealthy environment or waves from household appliances (telephone, computers, etc.).
Black tourmaline helps to deflect bad thoughts, it improves concentration, creativity, inspiration and imagination. It is recommended for children or hyperactive people.
It helps to find serenity and harmony.
The wearer is calmer, less anxious and less distressed. He finds peace and wisdom.