Smoky quartz sphere with rainbows - c

This transparent smoky quartz sphere is a luminous and visually captivating piece that combines soft smoky tones with exceptional clarity and vibrant internal rainbow flashes. Carved into a perfectly balanced spherical form, it offers a sense of harmony and flow, while allowing light to move freely through the crystal.

Expertly polished to a high-gloss finish, the surface is smooth and reflective, enhancing the natural clarity of the quartz. The stone displays a gentle smoky hue, ranging from near-clear translucency to soft grey-brown tones. Within, a delicate network of internal inclusions, fractures, and mineral traces creates subtle layers of depth without obscuring the crystal’s transparency.

Light interacts beautifully with the sphere, passing easily through its clearer areas and catching on internal fracture planes to produce vivid rainbow flashes. These prismatic reflections appear as bright bursts of colour suspended within the crystal, shifting and dancing as the sphere is turned. The combination of clarity and internal rainbows gives the piece a bright, almost glowing quality that feels both refined and dynamic.

Mineral: Quartz

Formula: SiO₂

Colour: Pale smoky → translucent grey-brown

Cause of Colour: Natural irradiation affecting trace elements within the crystal

Lustre: Vitreous (glassy)

Transparency: Transparent → translucent

Streak: White

Hardness: 7 (Mohs)

Fracture: Conchoidal

Cleavage: None

Density: ~2.65

Crystal System: Trigonal

Habit: Massive (carved and polished sphere)

Formation: Igneous rocks & hydrothermal veins

Common Locations: Brazil, Madagascar, Switzerland, USA

Optical:

Refractive Index: ~1.54–1.55

Birefringence: Low

Extras:

Strong internal rainbow flashes from natural fractures

High clarity with delicate natural inclusions

Polished spherical carving

Each piece is one-of-a-kind

Key Features

Material: Natural Smoky Quartz

Formation: Hand-polished sphere

Color: Light smoky with vivid internal rainbows

Crystal Habit: Carved sphere with fine inclusions and fracture planes

Finish: Smooth, high polish

Shape: Perfect sphere

Dimensions

Approx. Diameter: 4.5 cm

Weight: 125 grams

Geological & Scientific Notes

Smoky quartz is a naturally occurring variety of quartz, its colour formed through exposure to natural radiation over time. This process alters trace elements within the crystal lattice, producing the characteristic smoky tones that range from very pale translucent hues to deeper brown shades.

This piece displays a higher level of clarity than many smoky quartz specimens, allowing light to travel more freely through the crystal. Within, natural inclusions and fracture planes formed during growth create subtle internal textures while preserving overall transparency.

The most striking feature of this sphere is its vivid internal rainbow flashes. These occur when light passes through microscopic fracture planes within the quartz, refracting into prismatic colours. Due to the clarity of the material, these rainbow reflections appear brighter and more defined, creating bold flashes of colour that shift with movement and changing angles.

The spherical carving enhances this optical effect by allowing light to enter and exit from all directions, maximising both the visibility of the internal structure and the intensity of the rainbow displays. The result is a piece that feels bright, dynamic, and full of life, with a strong interplay between clarity, light, and colour.

Condition

Smooth polished surface

Well-formed spherical shape

High clarity with visible natural inclusions

Internal fractures producing strong rainbow flashes

No dyeing or artificial enhancement

Natural variations in tone, clarity, and internal pattern

Care Instructions

Handle with care to avoid chips or damage

Clean gently with a soft cloth or mild water

Avoid prolonged exposure to direct sunlight

Keep away from harsh chemicals

Store separately to protect the surface