High Grade Black Tourmaline Crystal Natural Schorl Mineral Brazil Genuine Specimen with COA

Description

High Grade Black Tourmaline from Brazil – Genuine Natural Crystal Specimen

This exceptional high-grade Black Tourmaline (Schorl) crystal originates from Brazil, one of the world’s leading sources of premium-quality tourmaline minerals. The specimen offered here is a hand-selected, authentic natural crystal, photographed individually so you receive the exact piece shown. As a 100% genuine mineral, it comes with its own Certificate of Authenticity, guaranteeing true provenance and natural formation. The crystal displays the characteristic deep black coloration and strong prismatic structure typical of high-quality Brazilian schorl.

Geological Background and Formation Environment

Black Tourmaline belongs to the tourmaline group, a complex borosilicate mineral family known for its remarkable diversity of colours and compositions. Schorl, the black variety, is rich in iron, giving it both its distinctive colour and its density. This specimen formed naturally within Brazil’s ancient geological settings, particularly in pegmatite veins—coarse-grained igneous formations renowned for producing large, well-defined mineral crystals. Pegmatites provide the ideal slow-cooling environment for tourmaline to crystallise in elongated prismatic shapes, often with deep vertical striations, which are visible on this specimen.

The geological history of Brazilian pegmatites spans hundreds of millions of years, developing in regions of intense geothermal activity and tectonic uplift. These conditions favour the growth of large, pure tourmaline crystals, making Brazil a globally recognised source for high-grade schorl. The natural resilience of the mineral—formed under high temperature and pressure—gives it exceptional durability and long-lasting stability.

Crystal Habit, Structure, and Key Mineralogical Features

This Black Tourmaline specimen exhibits the classic crystal habit of schorl: elongated, columnar growth with strongly striated faces. The parallel grooves running down the sides of the crystal are a hallmark of tourmaline’s trigonal crystal system and contribute to its distinctive appearance. The deep, opaque black body reflects subtle natural sheen under light, and internal alignment of iron-rich layers creates a uniform surface structure.

Tourmaline crystals grow as complex borosilicates incorporating elements such as sodium, iron, aluminium, and hydrogen during formation. In Black Tourmaline, its iron content is the dominant colouring agent. Brazilian specimens are especially prized for their clarity of structure, sharp prism faces, and well-preserved termination points when present. Each piece forms over millions of years as mineral-rich fluids permeate pegmatitic cavities, gradually precipitating into the bold, structured formations seen in high-quality schorl.

Origin and Natural Features of Brazilian Schorl

Brazilian Black Tourmaline is admired not only for its deep, consistent colouring but also for the stability and strength of its crystal lattice. The region’s pegmatite belts produce some of the world’s most impressive and reliable tourmaline specimens due to the purity of the host rock and the mineral-rich solutions from which the crystals emerge. Many crystals from this region show naturally occurring striations, minor surface textures, and internal structural features that reflect their geological journey.

Your specimen has been chosen specifically for its balance of aesthetic appeal, natural integrity, and mineralogical quality. The piece showcases the authentic beauty of schorl without enhancement or artificial treatment.

Authenticity and What You Receive

You will receive the exact Black Tourmaline specimen shown in the photographs. Full sizing and proportions are displayed clearly in the images for accuracy. Every crystal is individually selected for quality and authenticity, and each purchase includes a Certificate of Authenticity confirming its genuine natural origin. This guarantees you a true mineral specimen suitable for collectors, enthusiasts, educational displays, or anyone who appreciates the natural beauty and geological history of high-grade Black Tourmaline.