Rock Crystal – High Grade Quartz Specimen – Brazil Origin – Genuine Polished Crystal – Certificate Included

Description

This listing features a 100% genuine Rock Crystal (clear quartz) specimen from Brazil, internationally recognised for producing some of the world’s highest-grade quartz. You will receive the exact specimen shown in the photographs, selected for its high clarity, elegant shape, and overall quality. A 1cm scale cube is included in the images for accurate sizing.

Rock Crystal is the colourless and transparent variety of quartz (SiO2), valued not only for its optical clarity but also for its versatility in metaphysical and decorative applications. Brazilian quartz is particularly sought after for its size, clarity, and natural luster.

All of our Crystals are 100% Genuine Specimens & come with a Certificate of Authenticity.

Key Features:

• Species: Quartz (variety: Rock Crystal)
• Chemical Formula: SiO2 (Silicon Dioxide)
• Crystal System: Hexagonal
• Habit: Prismatic crystals with pointed terminations; polished point
• Colour: Colourless (transparent)
• Lustre: Vitreous (glassy)
• Hardness: 7 Mohs
• Cleavage: None
• Fracture: Conchoidal
• Streak: White

Geological Context:

• Locality: Brazil (Minas Gerais and Goias are leading quartz-producing regions)
• Geological Stage: Quartz occurs across many stages and rock types, most often in pegmatites, hydrothermal veins, and granitic environments
• Depositional Environment: Crystallises from silica-rich fluids in cavities, fractures, and geodes
• Morphology Features: Transparent prismatic crystals, six-sided with naturally polished or refined terminations
• Zone / Biozone: Not applicable
• Notable: Quartz is piezoelectric and used industrially; clear varieties like this are historically known as “rock crystal” and were once believed to be eternally frozen ice

Taxonomic Notes:

• Order: Silicates
• Family: Tectosilicates
• Super Family: Quartz Group
• Formally Identified By: Known since antiquity; name derives from Greek krystallos, meaning “ice”

This Brazilian Rock Crystal is ideal for collectors, healers, or anyone seeking a high-grade quartz specimen with clarity and presence.

You will receive the actual specimen shown in the photo.

Disclaimer: All of our crystals are 100% genuine specimens and come with a Certificate of Authenticity. Photos show the exact item — no stock images used.