Description
Rock Crystal Group from Brazil – Genuine Natural Clear Quartz Cluster
This Rock Crystal Group from Brazil is a beautifully formed natural cluster of clear quartz, selected for its strong crystal architecture, clarity, and aesthetic balance. The photographs show the exact specimen you will receive, ensuring full transparency and accuracy. As with all our minerals, this piece is 100% genuine and comes with a Certificate of Authenticity. Brazilian quartz clusters are among the most admired worldwide due to their pristine formation, high clarity, and remarkable geological origin.
Geological Background and Formation of Rock Crystal Quartz
Rock crystal is the purest form of quartz, consisting of silicon dioxide (SiO₂). It forms when silica-rich hydrothermal fluids fill natural cavities, fissures, and geodes within the Earth’s crust. As these mineral-saturated fluids cool and pressure stabilises, quartz molecules begin to arrange into their characteristic trigonal structure, forming long prismatic crystals over thousands to millions of years.
Brazil, particularly the Minas Gerais region, is globally renowned for its quartz deposits. The region’s geological history involves ancient volcanic activity, tectonic uplift, and long-term hydrothermal circulation. These conditions create ideal environments for quartz crystallisation, producing some of the world’s finest clusters renowned for their clarity, size, and structural quality.
Crystal Habit, Structure, and Natural Features
Clear quartz typically forms in the trigonal division of the hexagonal crystal system. Its natural habit is an elongated six-sided prism terminating in a sharp, multi-faceted point. In a cluster formation such as this Rock Crystal Group, multiple points grow together from a shared base, each forming independently but in harmony with the surrounding crystals.
This specimen may feature:
- Prism faces with natural horizontal striations, indicative of stable crystal growth
- Clear to slightly milky internal areas, created by microscopic inclusions or shifts in formation conditions
- Internal veils, planes, or light-reflecting fractures, which can produce subtle rainbow flashes
- Strong, well-developed terminations, showing undisturbed growth
Natural quartz clusters often contain minor inclusions or internal structures that highlight the geological environment in which they formed. These characteristics add depth, visual interest, and scientific value to the specimen.
Mineralogical Significance and Global Importance
Quartz is one of the most influential minerals in the study of geology due to its stability, widespread occurrence, and diverse formation environments. Clear quartz clusters like this one are especially valued because they provide insight into long-term hydrothermal activity deep within the Earth’s crust. Their formation records environmental changes, fluid movement, and the mineral chemistry of ancient geological periods.
Brazilian quartz is particularly prized for its high clarity and strong crystal formation, making it a favourite among collectors, geologists, and those who appreciate natural mineral art. A well-formed cluster such as this is not only visually striking but also a meaningful representation of geological time and pressure.
Authenticity and What You Receive
You will receive the exact Rock Crystal Group shown in the photographs. Full sizing and proportions are visible in the images, offering a clear representation of its natural structure. Every specimen is individually selected for its aesthetic harmony, transparency, and mineral integrity. A Certificate of Authenticity is included with your purchase, confirming its status as a genuine natural quartz cluster from Brazil.
This Rock Crystal Group is ideal for collectors, display cabinets, geological education, interior décor, or anyone who appreciates the natural elegance and geological history of clear quartz formations shaped deep within the Earth over millions of years.
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