Amethyst sphere

Amethyst Sphere with rainbows & Natural Inclusions

This beautiful amethyst sphere displays soft lavender to mid-purple tones with a luminous, glassy finish. Polished to a smooth shine, it reveals a mesmerising internal landscape of wispy inclusions, delicate fractures, and subtle phantom lines that appear as faint layered outlines within the crystal. These gentle internal markings add depth and movement, while flashes of rainbow light shimmer across internal planes when viewed from different angles. The spherical shape enhances light flow, making this a captivating piece from every perspective.

Key Features
Material: Natural amethyst (quartz variety)
Formation: Polished sphere with internal fractures, inclusions, rainbow and faint phantom growth lines
Color: Light to medium lavender purple with translucent areas
Crystal Habit: Quartz with internal crystalline features
Finish: Fully polished exterior
Shape: Sphere

Dimensions
Approx. Size: 4cm diameter
Weight: 86 grams 

Geological & Scientific Notes
Amethyst is a variety of quartz that forms within cavities in volcanic rock, created as silica-rich fluids slowly crystallise over time. The softer purple tones seen in this piece suggest lower iron content and more subtle natural irradiation during its growth.

The faint phantom lines visible within the sphere are remnants of earlier growth stages of the crystal. These occur when crystal growth temporarily pauses and then resumes, leaving behind delicate internal outlines that trace previous crystal surfaces. These features provide insight into the crystal’s formation history and are highly valued for their layered, dimensional appearance.

Internal fractures and “veil-like” inclusions are also present, formed through natural pressure changes during growth. In certain lighting, these structures refract light to create small rainbow flashes—an optical effect caused by light interacting with microscopic internal planes.

Subtle mineral inclusions and light iron staining may also be present, contributing to the stone’s unique character and natural origin.

Mineral: Quartz
Formula: SiO₂
Colour: Pale lilac → deep purple
Cause of Colour: Iron + natural irradiation
Lustre: Vitreous (glassy)
Transparency: Transparent → translucent
Streak: White
Hardness: 7 (Mohs)
Fracture: Conchoidal
Cleavage: None
Density: ~2.65
Crystal System: Trigonal
Habit: Hexagonal prisms
Formation: Volcanic cavities (geodes)
Common Locations: Brazil, Uruguay, Zambia
Optical:
Refractive Index: ~1.54–1.55
Weak pleochroism
Extras:
May fade or turn yellow when heated
Often shows colour zoning or banding

Condition
Natural crystal with polished exterior
Internal fractures, inclusions, and visible phantom lines
Rainbow reflections visible under direct light
Minor surface variations consistent with natural material
No visible dyeing or artificial enhancement

Care Instructions
Handle with care to avoid scratches or chips
Clean gently with a soft cloth
Avoid prolonged exposure to water
Keep out of direct sunlight to preserve colour
Store safely to prevent damage or surface wear