Ilvaite Crystal — Cabinet Specimen

$112.40
Chemical FormulaCaFe₂²⁺Fe³⁺(Si₂O₇)O(OH)
Crystal SystemOrthorhombic
Mohs Hardness5.5–6
Specific Gravity3.99–4.05
LusterSubmetallic
TransparencyOpaque

Named for Ilva (ancient Elba), ilvaite occurs in contact metamorphic skarns. The black prismatic crystals from Serifos are among the finest in the world, associated with epidote an…

29 in stock

SKU: TC-MIN-0221
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Description

What looks like stone is, on closer inspection, frozen time. Named for Ilva (ancient Elba), ilvaite occurs in contact metamorphic skarns. The black prismatic crystals from Serifos are among the finest in the world, associated with epidote and calcite in combinations that show mineralogy’s talent for chromatic contrast. The Greek island setting adds a mythological resonance.

This specimen originates from Serifos, Cyclades, Greece, one of the world’s most significant localities for this type of material. Collectors and scientists have drawn from this region for generations, and for good reason: the combination of geological conditions here produces specimens of exceptional quality and clarity.

Every specimen is unique. Photographs approximate the visual experience, but the real thing — its weight, its luster under a raking light, the way it catches the corner of your eye — can only be experienced directly.

Formation

This specimen formed through geological processes operating over timescales that dwarf human history. The specific combination of chemistry, temperature, pressure, and time at this locality produced material of exceptional quality that makes it a valued addition to any serious collection.

Locality

Ilvaite Crystal — Cabinet Specimen from Serifos, Cyclades, Greece. This locality is known for producing specimens of exceptional quality.

Collector Notes

The luster is maximized by low-angle raking light — try a single spotlight.