Labradorite sphere

Labradorite Sphere — Blue Flash Feldspar

This sphere is a beautiful example of labradorite showing strong blue and gold labradorescence across multiple crystal planes.

The surface displays classic feldspar twinning and internal fracture structures, while directional light reveals vivid electric blue flashes caused by light interference inside the mineral structure.

Overview

This polished labradorite sphere shows layered blue flash across a smoky grey feldspar body with visible internal crystal zoning and natural structural fractures.

Labradorite belongs to the plagioclase feldspar group and is famous for its optical phenomenon known as labradorescence — the metallic blue, gold, and green flashes seen when light reflects between microscopic lamellar layers within the crystal.

This piece has particularly strong directional blue flash with silver and pale gold tones visible under direct lighting.

Dimensions 

92 grams 3.6cm diameter

Key Features

Material: Labradorite

Mineral Group: Plagioclase Feldspar

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Colour: Smoky grey, silver, blue flash, pale gold

Optical Effect: Labradorescence

Transparency: Opaque to semi-translucent in thin areas

Lustre: Vitreous

Crystal System: Triclinic

Finish: Polished sphere

Mohs Hardness: 6–6.5

Geological & Scientific Notes

Labradorescence occurs because of microscopic intergrowth layers inside the feldspar crystal.

As light enters the stone, it reflects and interferes between these internal lamellae, producing flashes of colour that shift depending on viewing angle and lighting direction.

The blue flash visible in this sphere is caused by selective light interference, similar to thin-film optical effects.

The darker fracture lines and zoning patterns visible throughout the piece are natural structural features formed during cooling and crystallisation within igneous environments.

This sphere also shows:

• Internal feldspar twinning patterns

• Directional crystal zoning

• Structural cleavage planes

• Natural fracture veining

• Multiple flash layers across different growth zones

Why This Piece Stands Out

• Strong electric blue flash

• Multiple reflective planes

• Large visible labradorescence zones

• Excellent contrast between dark body and bright flash

• Classic feldspar crystal structure visible throughout

• Highly dynamic under moving light

Care & Handling

Labradorite is relatively durable but contains natural cleavage planes which can fracture under impact.

• Avoid dropping or knocking against hard surfaces

• Clean with lukewarm water and a soft cloth

• Avoid prolonged soaking

• Store separately from harder minerals to preserve polish