Brecciated Indian Amethyst Polished Tower

This substantial brecciated amethyst freeform showcases large, rounded quartz fragments set within a contrasting iron-rich matrix. The piece features deep purple amethyst zones alongside translucent quartz and warm reddish-brown mineralisation, creating a bold, high-contrast structure.

The polished finish enhances the natural fragment boundaries, revealing a complex internal network of fractures, healed zones, and mineral infill that reflects multiple stages of geological formation.

Key Features

Mineral: Quartz (Amethyst variety)

Chemical Formula: SiO₂

Formation: Brecciated quartz with iron-rich matrix infill

Colour: Purple, lavender, smoky tones with red/orange iron staining

Transparency: Translucent to semi-opaque

Lustre: Vitreous (glassy)

Crystal System: Trigonal

Mohs Hardness: 7

Finish: Polished freeform

Dimensions

Size: 9 cm x 5.1 cm

Weight: 219 grams

Geological & Scientific Notes

This specimen formed through brecciation, where pre-existing quartz fractured into large fragments due to tectonic or thermal stress. These fragments were later cemented together by silica-rich fluids, which recrystallised and stabilised the structure.

The rounded appearance of some fragments suggests partial reworking or dissolution before cementation, giving the piece a more complex, multi-stage formation history compared to sharper brecciated material.

The reddish-orange areas are caused by iron oxide mineralisation (commonly hematite or iron-bearing inclusions) that filled gaps between fragments during the healing process.

Amethyst coloration is produced by trace iron within the quartz lattice, activated by natural irradiation. Variations in tone—from pale lavender to deeper purple—reflect differences in iron concentration and exposure conditions during growth.

Small cavities and uneven infill zones are natural features where mineral deposition was incomplete, adding further texture and depth to the piece.

Why This Piece Stands Out

Larger, heavier statement piece (219g)

Distinct rounded amethyst fragments (less common than sharp brecciation)

Strong iron-rich matrix contrast

Multi-stage formation visible through structure and colour variation

Excellent display presence due to size and pattern distribution

Care

Clean with lukewarm water and mild soap

Avoid prolonged exposure to direct sunlight

Store separately to prevent scratching