Citrine freeform with phantom lines and rainbow

This is a natural citrine quartz freeform featuring distinct phantom growth lines and vibrant internal rainbows, creating a visually captivating and energetically dynamic piece. The crystal displays soft golden-yellow tones with areas of enhanced depth, where internal formations and light reflections bring the piece to life.

Unlike raw clusters, this specimen has been carefully shaped into a polished freeform while still preserving its natural internal features. The sculptural form enhances visibility of the phantom lines—layered growth patterns captured within the crystal—as well as the flashes of rainbow refraction caused by internal fractures.

Key Features
Material: Natural Citrine (quartz variety)
Formation: Polished freeform with internal phantom growth structures
Color: Pale to medium golden-yellow with subtle tonal variation
Crystal Habit: Freeform showcasing internal phantoms and inclusions
Finish: Smooth polished exterior with natural internal features
Shape: Organic freeform

Dimensions
Approx. Size: 5.8cm x 4.6cm
Weight: 99 grams 

Geological & Scientific Notes
Citrine is a variety of quartz coloured by trace amounts of iron within its crystal lattice. The golden-yellow hues develop naturally through geological heating and oxidation processes over long periods.

This specimen features phantom formations, which occur when crystal growth temporarily pauses and then resumes. During this interruption, a layer of minerals or slight change in conditions creates a visible outline of the earlier growth stage within the crystal. These phantoms appear as faint geometric shapes or lines, giving a “crystal within a crystal” effect.

The internal rainbows are caused by light interacting with microscopic fractures and inclusions inside the quartz. These natural stress features refract light, producing flashes of spectral colour that shift depending on the viewing angle.

Clarity varies throughout the piece, with some areas appearing clearer and others more included. These inclusions and internal textures are completely natural and provide insight into the crystal’s formation history.
The polished freeform shape enhances both optical effects and internal visibility, allowing the phantom lines and rainbow flashes to be viewed from multiple angles.

Mineral: Quartz
Formula: SiO₂
Colour: Pale yellow → deep amber
Cause of Colour: Iron impurities
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: Igneous rocks & hydrothermal veins
Common Locations: Brazil, Madagascar, Russia
Optical:
Refractive Index: ~1.54–1.55
Weak pleochroism
Extras:
Natural citrine is rare
Often heat-treated amethyst
Colour usually more uniform than amethyst

Condition
Polished freeform with smooth exterior surfaces
Visible phantom lines and internal growth structures
Natural inclusions, internal fractures, and rainbow refractions present
Minor internal and surface features consistent with natural quartz
No dyeing or artificial enhancement

Care Instructions
Handle with care to avoid scratches or chips
Clean gently with a soft cloth or mild water if needed
Avoid prolonged exposure to direct sunlight to maintain colour stability
Keep away from harsh chemicals
Store separately to prevent surface damage