Description
Natural Beryl Crystal Specimen from Brazil
This genuine Beryl mineral specimen from Brazil showcases the natural crystal structure and geological characteristics of one of the most important minerals in the beryllium silicate group. Carefully selected for its crystal form and mineral quality, this specimen represents a classic example of beryl formation within granite pegmatite deposits.
The photographs in this listing show the exact crystal specimen you will receive, allowing collectors to clearly observe the crystal habit, surface features, and natural structure before purchase. Each beryl specimen is unique, reflecting the geological environment in which the crystal formed.
Mineral Identification and Scientific Classification
Beryl is a beryllium aluminium cyclosilicate mineral and one of the most well-known members of the silicate mineral group. It is widely recognised for forming large hexagonal crystals and for producing several famous gemstone varieties including emerald and aquamarine.
Key mineralogical properties include:
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Mineral Species: Beryl
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Mineral Group: Cyclosilicates
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Chemical Formula: Be₃Al₂Si₆O₁₈
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Crystal System: Hexagonal
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Mohs Hardness: 7.5 – 8
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Lustre: Vitreous
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Transparency: Transparent to opaque depending on specimen quality
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Crystal Habit: Prismatic hexagonal crystals with flat terminations
The crystal structure of beryl is defined by rings of silicate tetrahedra arranged in hexagonal channels, which can sometimes contain trace elements or fluid inclusions that influence colour and internal features.
Geological Formation in Pegmatite Environments
Beryl commonly forms within granite pegmatites, which are coarse-grained igneous rocks produced during the final stages of magma crystallisation. Pegmatites are particularly rich in rare elements such as beryllium, lithium, and cesium, making them ideal environments for the formation of minerals like beryl.
As magma cools slowly deep within the Earth’s crust, minerals crystallise in sequence. In pegmatitic environments, the remaining mineral-rich fluids allow crystals to grow to unusually large sizes, often producing well-developed hexagonal beryl crystals.
Brazil contains numerous pegmatite fields where beryl crystals form alongside other minerals such as quartz, feldspar, muscovite mica, and tourmaline.
Brazilian Mineral Localities
Brazil is one of the world’s most important sources of beryl, particularly from the pegmatite regions of Minas Gerais, which are known for producing high-quality mineral specimens and gemstone varieties.
Within these pegmatite systems, beryl crystals develop in cavities or within quartz-rich zones where mineral-rich fluids allowed large crystals to grow. Over time, erosion and mining activity expose these pegmatite deposits, allowing specimens to be recovered for mineral collections.
Specimens from Brazil are widely valued by collectors due to the country’s long history of producing well-formed crystals with excellent mineralogical significance.
Crystal Structure and Surface Characteristics
Beryl crystals typically display elongated hexagonal prism shapes with flat terminations and longitudinal striations along the crystal faces. These striations are a natural growth feature and help identify the mineral.
Depending on trace elements present during formation, beryl can appear in a range of colours including green, blue, yellow, pink, or colourless varieties. In natural mineral specimens, colour may be subtle or uneven, reflecting the mineral’s geological formation.
Many specimens display natural surface textures, internal inclusions, or partial crystal faces that reveal the conditions under which the crystal developed within the pegmatite environment.
Mineral Collecting and Display
Beryl is an important mineral species for collectors due to its distinctive crystal structure, geological significance, and association with pegmatite mineral systems. Specimens are often included in mineral collections that focus on silicate minerals, pegmatite formations, or classic crystal habits.
Collectors appreciate beryl specimens for:
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Well-defined hexagonal crystal structure
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Geological association with pegmatite mineral deposits
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Importance within the beryllium silicate mineral group
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Connection to famous gemstone varieties
This specimen makes an excellent addition to mineral collections, geological displays, teaching collections, or natural crystal cabinets.
Cultural and Traditional Associations
Throughout history, minerals from the beryl family have appeared in decorative objects and jewellery across many cultures. In some traditions, stones related to the beryl group are traditionally associated with clarity and symbolic balance, interpretations rooted in cultural symbolism rather than scientific properties.
Authenticity and Certificate of Authenticity
This specimen is a genuine natural Beryl crystal from Brazil. Each purchase includes a Certificate of Authenticity lifetime guarantee generic card, confirming the authenticity of the mineral specimen.
The listing images show the exact crystal you will receive, ensuring buyers and collectors can clearly see the natural mineral specimen before purchase.
Size and Specimen Details
Please refer to the listing photographs for full sizing and scale of the specimen. Images display the crystal structure, surface characteristics, and natural mineral form so collectors can evaluate the specimen accurately.
This Beryl mineral specimen from Brazil represents a classic example of hexagonal cyclosilicate crystal formation within granite pegmatite geology and offers a distinctive addition to any mineral collection, geological display, or natural crystal cabinet.





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