A raw hexagonal ruby crystal is a natural mineral specimen that preserves the characteristic geometric form of corundum and its authentic surface texture. Ruby is the red variety of corundum, and its pink, red or purplish-red colour is caused by chromium present in the mineral’s crystal structure.
Corundum is exceptionally hard, reaching 9 on the Mohs scale. The raw crystal reveals natural colour variations, mineral inclusions, growth lines and irregular surfaces. Its preserved hexagonal form gives the specimen a distinctive appearance and offers an insight into the structure of naturally formed ruby.
This crystal is ideal for a mineral and gemstone collection, an educational display, an interior accent or as a meaningful gift for someone interested in geology and the natural world. Each specimen is unique; therefore, its shape, shades and surface characteristics may vary. Natural inclusions, cracks, chips and irregularities are features of the mineral’s natural origin and should not be considered defects.
