Sacred Alchemy Eximius Collection | Amethyst with Powellite Inclusions (Minas Gerais, Brazil)

UV-Reactive Electric Yellow Fluorescence

A featured creation from our Eximius Collection—our premiere line reserved for singular, high-caliber mineral specimens and master-grade cabochons.

In ambient daylight, this hand-cut cabochon presents rich, velvety violet amethyst hosting delicate, golden-cream internal mineral inclusions. When exposed to shortwave or longwave ultraviolet light, the hidden inclusions ignite into a intense, neon yellow-gold fluorescence.

The inclusions consist of Powellite ($\text{CaMoO}_4$), a rare calcium molybdate mineral. Trapped within the quartz matrix during growth in the pegmatites of Minas Gerais, Brazil, these mineral structures create a striking visual dual-identity.

Geological & Visual Details

• Gem Type: Natural Quartz (Amethyst) with Powellite (CaMoO4) inclusions

• Locality: Minas Gerais, Brazil

• Daylight Appearance: Saturated deep purple amethyst body with warm cream-to-amber suspended inclusions

• UV Response: Vibrant yellow to golden-yellow fluorescence

• Cut & Finish: Precision-cut cabochon featuring a high optical polish and flat base for setting or display

Lapidary Craftsmanship

Due to the variance in cleavage and hardness between quartz (Mohs 7) and powellite (Mohs 3.5), this cabochon was hand-shaped to preserve the structural integrity of the inclusions while achieving a smooth dome.

Item Description:
This stunning cabochon showcases a unique combination of deep purple amethyst with a rare powellite inclusion. Under UV light, the powellite inclusion glows a captivating yellow, making this piece truly one-of-a-kind. Perfect for collectors and jewelry artisans alike, it’s a conversation starter that adds a special glow to any setting.

Composition Details:

Main Stone: Amethyst (SiO2, silicon dioxide) with powellite inclusion (CaMoO4, calcium molybdate)

Origin: Mined in Minas Gerais, Brazil

Special Feature: UV-reactive yellow fluorescence in the inclusion

Metaphysical Properties:

Chakra: Third Eye Chakra

Birthstone Month: February (amethyst)

Zodiac: Pisces and Aquarius

Known for enhancing intuition and spiritual insight.

Care Tips:
Keep away from prolonged sunlight exposure to maintain the vibrant color. Clean gently with mild soap and lukewarm water. Avoid harsh chemicals.

People buy this for:

Unique jewelry projects that glow under UV light

Collectible mineral displays

Gifts for gem and mineral enthusiasts