Okorusu Fluorite Angel Pocket Purple Green Crystal Cluster

This striking Okorusu Fluorite Angel Pocket specimen displays a dramatic cluster of broad, intergrown cubic crystals with deep purple surfaces contrasting against vivid green fluorite visible between the crystal faces. The complex arrangement creates a fascinating geometric pattern, while flashes of violet and green become more pronounced as the specimen is viewed from different angles.

Specimen Details

✓ Mineral: Fluorite
✓ Chemical Formula: CaF₂
✓ Crystal System: Cubic
✓ Locality: Okorusu Mine, Namibia
✓ Region: Otjozondjupa Region
✓ Pocket: Angel Pocket
✓ Colour: Deep purple with green zoning
✓ Crystal Habit: Intergrown cubic crystals
✓ Size: 43 × 42 × 30 mm
✓ Weight: 59 g

The Story Behind Okorusu Fluorite

Okorusu Mine is one of Namibia's classic fluorite localities, renowned among mineral collectors for its sharp cubic crystals and remarkable range of colours. Fluorite from the locality is particularly noted for combinations of green, blue, purple and colourless zones, sometimes producing striking internal growth patterns.

The deposit formed within the geological environment of the Okorusu carbonatite complex. During the Cretaceous Period, approximately 137–124 million years ago, carbonatite-related magmatic activity affected the surrounding rocks. Mineral-rich hydrothermal fluids released from this system moved through the surrounding rocks and deposited fluorite as conditions changed.

Those changing conditions could be recorded by the growing crystals themselves. Variations in the chemistry of the mineralising fluids produced different generations and zones of fluorite, creating the contrasting colours and complex internal patterns for which Okorusu specimens are known.

Why Okorusu Fluorite?

✓ Famous Locality: Okorusu is one of Namibia's best-known fluorite-producing localities.
✓ Natural Cubic Form: The broad, geometric crystal faces are a natural expression of fluorite's cubic crystal system.
✓ Purple & Green Zoning: Contrasting colours provide a striking visual record of changing conditions during crystal growth.
✓ Angel Pocket: This specimen is identified as material from the Angel Pocket at Okorusu.
✓ Collector Specimen: Its substantial intergrown crystals and distinctive colour combination make it an attractive addition to a mineral collection.

Fluorite is relatively soft at 4 on the Mohs scale, so this specimen should be handled carefully and displayed where it will not be knocked or dropped.