Description
This 3-inch amethyst cut base is crafted from a Brazilian geode formation, where the underside is polished flat for stability while the crystal face remains in its natural state. The quartz points display layered purple tones—ranging from pale lavender tips to deeper violet near the base—offering strong visual contrast against the dark basalt host rock.
The cut base format allows the cluster to stand upright, highlighting the height of the points and the natural transitions within the crystal growth.
Geological Background
Brazil is a global leader in high-quality amethyst, especially from the volcanic fields of Rio Grande do Sul. These crystals form in hollow cavities inside basaltic lava flows where silica-rich hydrothermal fluids crystallize over long spans of geologic time.
Subtle temperature shifts and trace iron concentrations create the variation in purple color, while the surrounding basalt preserves the geode cavity structure that supports crystal growth.
Scientific Classification
| Property | Value |
|---|---|
| Mineral Class | Silicate – Quartz Group |
| Chemical Formula | SiO₂ (iron-bearing quartz) |
| Crystal System | Trigonal |
| Mohs Hardness | 7 |
| Locality | Rio Grande do Sul, Brazil |
| Formation Style | Basalt-hosted amethyst geode |
History & Cultural Context
Amethyst has been carved and collected for thousands of years, once prized as a precious gemstone before major deposits were discovered in Brazil during the 19th century. Since then, Brazilian amethyst has become a cornerstone of mineral collecting due to its clarity, color range, and large natural crystal formations.
Cut-base clusters rose in popularity as a modern display style, allowing natural geode interiors to be showcased upright without mounts or stands.
Metaphysical Properties
Amethyst is traditionally associated with:
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Clarity and calm thinking, encouraging a sense of peaceful focus
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Intuition and insight, linked to reflective or contemplative practices
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Protective energy, often used in spaces intended for meditation or rest
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Balanced atmosphere, helping create a gentle, intentional environment
These interpretations stem from long-standing crystal lore and cultural symbolism.
Aesthetic & Collector Evaluation
This 3-inch cluster features strong visual presence with tightly grouped points, natural luster, and elegant purple zoning. Its compact size makes it ideal for desktops, bedside tables, small shelves, or curated mineral trays. Each cluster shows natural individuality in crystal height, color saturation, and point arrangement.
Care & Handling
Keep out of prolonged direct sunlight to maintain color. Dust gently with a soft cloth. Avoid harsh cleansers and impacts to the crystal tips.









