Dioptase with Fornacite

Deep green Dioptase crystals form a tightly intergrown cluster with a raised central crest and a broad, irregular outline. The larger crystals have broad reflective faces, while smaller growth fills the spaces around them. Bright emerald and blue-green edges contrast with the darker interiors, giving the cluster depth rather than a uniform surface colour.

The crystal faces show a glassy lustre. Some surfaces reflect light as broad flashes; others display fine steps and uneven growth textures. This variation is particularly clear when the specimen is turned in the video. The angular outlines remain visible within the dense intergrowth, allowing individual crystals to be followed across the face of the cluster.

The Fornacite association adds a finer texture among the more substantial Dioptase crystals. A conspicuous patch of lighter green mineral growth interrupts the smooth, reflective faces near the upper part of the specimen. Its subdued surface provides a useful visual contrast with the darker, lustrous Dioptase surrounding it.

This is a specimen to examine at several scales: the overall peaked form, the arrangement of larger crystals, and the fine mineral growth between them. The photographs include side and reverse views so that the extent of crystallisation and the less reflective surfaces can be assessed alongside the principal display face. The accompanying video shows how the crystal reflections change through rotation.