Black Amethyst Druzy Butterfly Carving

This is a carved black amethyst druzy specimen shaped into a butterfly. It features a dense layer of small, natural crystal points across the wings, displaying deep smoky-grey to soft lavender tones with subtle internal variation. The piece is set on a visible quartz matrix base and has a more raw, natural appearance.

Key Features
Material: Natural black amethyst (dark variety of quartz)
Formation: Druzy crystal growth over quartz matrix
Color: Smoky grey to muted purple with subtle zoning
Crystal Habit: Fine, tightly packed terminations with reflective faces
Finish: Carved and shaped with natural matrix backing
Shape: Butterfly carving (lapidary-shaped)
Display: Not freestanding – requires support or flat placement

Dimensions
Approx. Size: 5.6 × 3.5 cm (adjust if needed)
Weight: 45 g (adjust if needed)

Geological & Scientific Notes
Black amethyst is a darker-toned variety of quartz, typically coloured by higher concentrations of iron and natural irradiation during formation. It forms in cavities within volcanic rock, where silica-rich fluids crystallise over time.

The druzy surface is composed of numerous small euhedral crystals that grew inward from the cavity walls. These tightly packed points enhance light reflection, giving the surface a subtle sparkle despite the darker overall tone.
Matrix material and natural mineral inclusions are visible, contributing to the specimen’s raw geological character.

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 surface with inclusions and visible matrix
Variation in crystal size and density across the wings
Some natural imperfections and edge irregularities
Not freestanding – best displayed supported or laid flat
No visible dyeing or artificial enhancement

Care Instructions
Handle carefully to avoid damaging delicate crystal points
Clean using a soft brush or compressed air
Store or display in a stable position due to non-freestanding form
Avoid prolonged exposure to direct sunlight to help maintain colour integrity