Black tourmaline crystal cluster (SCESP044)

$199.00$201.99

Unique small-cabinet-sized black tourmaline crystal cluster (SCESP044) from Gemrock Peru´s crystal mining operation in Lima province, Peru

Small-Cabinet Size: 65 x 45 mm.

Weight: 120.3 gr

Origin: Lima, Province, Peru

 

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Description

Black tourmaline crystal cluster (SCESP044)

Unique small-cabinet-sized black tourmaline crystal cluster (SCESP044) from Gemrock Peru´s crystal mining operation in Lima province, Peru

Small-Cabinet Size: 65 x 45 mm.

Weight: 120.3 gr

Origin: Lima, Province, Peru

 

About Tourmaline

Tourmaline is a crystalline boron silicate mineral, which compounds with elements such as aluminum, iron, magnesium, sodium, lithium, or potassium. Tourmaline classifies as a semi-precious stone.

Black tourmaline (“Schorl”) is the sodium iron endmember of the group. It may account for 95% or more of all tourmaline in nature. Furthermore, the early history of the mineral schorl shows that the name “schorl” was in use prior to 1400. The name originates from the village “Schorl” (today Zschorlau, in Saxony, Germany). Black tourmaline occurred in the nearby mine of the village.

Tourmaline occurs usually as an elongated prismatic crystal that is heavily striated. Likewise, it forms short, stubby, prismatic crystals. Many Schorl crystals have a rounded, triangular cross-section and a flattened pyramidal termination. On the contrary, it rarely occurs in tabular crystals. Moreover, aggregates include columnar, radiating, stalactitic, dense groups of acicular needles, and compact masses. In the case of our crystal mining area, tourmaline crystals do regularly form otherwise rather rare fan-shaped clusters. The individual fans do spread out in different directions toward each other.

Gemrocks crystal mining

The crystal mining area of Gemrock Peru in Lima province is a skarn area. Most skarns do form when carbonate rocks such as limestone, dolomite stone, or marble are intruded by a magma body with contact metamorphism. Under those circumstances, the magma releases water as it cools. As a result, the water moves through the surrounding rock. It flows or diffuses 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. Consequently, as it invades carbonate rock, the hot, acidic, metal-laden water becomes a major agent of change. It dissolves, replaces, recrystallizes, and alters minerals in the rock.

 

Choose the CARBON-POSITIVE PRICE:

Buy this crystal free of environmental impacts. Help improve the environment:

Gemrock Peru is a global leader spearheading sustainability and environmental conservation in the crystal and gemstone industry. Furthermore, we are now offering you a unique opportunity to take part in our effort. Do eliminate the carbon footprint of your crystal. And then do even better: become carbon-positive. Here is how it works: If you buy this crystal by choosing the “Carbon Positive Price” we will add 1.5 cents per USD to your crystal. We are going to use this additional amount in order to plant trees in a reforestation project in the Peruvian cloud forest. As a result, we do neutralize your crystals’ carbon footprint. Furthermore, you are helping to restore previously destroyed rainforests.

In addition to this, we will match your support. We will reward your conscious act by matching your support with the same amount. This way we are doubling the donation. Therefore we are creating a carbon-positive product that removes more carbon from the atmosphere than it adds to it.

With Gemrock Peru your crystal products have been ethically mined and produced and are environmentally friendly. Also, read our 2021 Sustainability Report.

 

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Price

Regular Price, Carbon Positive Price