The Museum Archive | Hematite-Included Calcite Rhombohedrons

A profound study in geological geometry and shadow. This substantial mineral specimen is defined by its striking architectural formation—a dense clustering of sharp, interlocking calcite rhombohedrons. Sourced from the earth's depths, the crystals are heavily included with natural hematite, transforming the typical translucency of calcite into a deep, opaque palette of midnight black and dark crimson.

Adding to its quiet complexity, the dark geometric faces are veiled with a subtle secondary growth of microcrystalline formations. When interacting with natural light, this delicate overgrowth provides a faint, crystalline shimmer against the heavy, monolithic structure. Staged within a minimalist space, it serves as a commanding, grounding sculptural element that bridges the raw power of nature with organic modern aesthetics.

Material & Specs

• Mineral: 100% Natural Hematite-Included Calcite with Microcrystalline Overgrowth.

 • Dimensions: Approx. 212 x 181 x 58 mm (8.3 x 7.1 x 2.3 in).

• Color Profile: Deep opaque black with subtle dark crimson/burgundy undertones.

• Form: Unpolished, raw geometric rhombohedrons.

Permanent Transparency Note

You will receive the exact, one-of-a-kind specimen shown. The subtle inclusions, asymmetric crystal growth, and raw tactile surfaces you observe are authentic geological signatures, untouched by human enhancement.

• Display Note: Any bases, travertine slabs, or staging props shown in photographs are for digital curatorial context only and are not included.