Purple and Green Fluorite from Okorusu Angel Pocket, Namibia

This striking Purple and Green Fluorite specimen from the renowned Okorusu Mine in Namibia displays an impressive arrangement of intergrown cubic crystals. Deep purple to violet fluorite dominates the specimen, while vivid green zones appear between and beneath the darker crystals, creating a dramatic contrast that changes with the viewing angle.

The specimen is particularly interesting for its strongly geometric crystal architecture. Numerous cubic fluorite crystals have grown together in an intricate stepped arrangement, with sharp edges, flat faces and natural intergrowths producing a complex three-dimensional form. Purple and green colour zoning is visible across several crystal faces, giving the specimen considerable visual depth.

Specimen Details

✓ Mineral: Fluorite
✓ Chemical Formula: CaF₂
✓ Locality: Okorusu Mine, Otjozondjupa Region, Namibia
✓ Pocket: Angel Pocket
✓ Geological Setting: Carbonatite-related fluorite deposit
✓ Geological Age: Early Cretaceous
✓ Colour: Deep purple, violet and green
✓ Transparency: Translucent to opaque
✓ Crystal Habit: Cubic, intergrown crystals
✓ Crystal System: Cubic
✓ Lustre: Vitreous
✓ Weight: 38 g
✓ Size: 38 × 31 × 25 mm
✓ Preparation: Cleaned
✓ Specimen Presentation: Natural mineral cluster

Okorusu is one of Namibia's best-known fluorite localities. The deposit formed within an alkaline igneous and carbonatite-related geological environment, where fluorite crystallised in association with carbonatite and altered surrounding rocks. The locality is particularly renowned for its cubic fluorite and the striking green, blue and purple colours found in its crystals.

The Angel Pocket is one of the named pockets associated with Okorusu fluorite and is known for specimens displaying strong green-to-violet colour contrasts and complex cubic crystal growth. This specimen showcases those characteristics particularly well, with the darker purple crystals providing a strong framework around translucent green areas.

Why Okorusu Fluorite?

Okorusu fluorite is highly regarded by mineral collectors for its combination of well-developed cubic crystals, unusual colour combinations and distinctive internal zoning. Green and purple fluorite occurring together creates particularly attractive specimens, while the sharp geometric forms make them excellent examples of fluorite's cubic crystal habit.

This specimen is small enough for a mineral cabinet or display case while offering plenty of detail to explore under magnification. The multiple crystal faces, stepped growth patterns and contrasting purple-green zones make it especially rewarding to view from different angles.

A fascinating example of Namibian fluorite crystal growth, this Angel Pocket specimen brings together bold colour, complex cubic architecture and the geological character that has made Okorusu famous among collectors.