Fan-shaped black tourmaline crystal (MiESP073)

$30.90$31.36

Unique miniature-sized fan-shaped black tourmaline crystal (MiESP073) from Gemrock Peru´s crystal mining operation in Lima province, Peru.

Miniature Size: 36 x 34 x 28 mm.

Weight: 30.9 gr

Origin: Lima, Province, Peru

 

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Description

Fan-shaped black tourmaline crystal (MiESP073)

Unique miniature-sized fan-shaped black tourmaline crystal (MiESP073) from Gemrock Peru´s crystal mining operation in Lima province, Peru.

Miniature Size: 36 x 34 x 28 mm.

Weight: 30.9 gr

Origin: Lima, Province, Peru

 

About Tourmaline

Tourmaline is a crystalline boron silicate mineral, which compounds with elements such as aluminium, 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 occured in the nearby mine of the village.

Tourmaline occurs usually as 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 case of our crystal mining area, tourmaline crystals do regularly form otherwise rather rare fan-shaped clusters. The individual fans are oriented in different directions to each other.

Gemrocks crystal mining

The area in Lima province where Gemrock Peru operates its first crystal mining operation 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. Consecuently, as it invades carbonate rock, the hot, acidic, metal-laden water becomes a mayor 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 improving 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 destroid rainforest.

In addition to this, we will match your support. In effect, 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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Additional information

Price

Regular Price, Carbon Positive Price