sedimentary

Calligraphy Stone

Mariam Jasper (Fossiliferous Limestone composed of Hematite and Shell remains)

AI-generated identification · may be incorrect

Hardness: 6.5-7.0 (Mohs scale); Color: Yellow-gold patterns on a brownish-red or earthy background; Luster: Dull to sub-vitreous; Structure: Cryptocrystalline; Cleavage: None

Hardness: 6
Color: Yellow-gold patterns on a brownish-red or earthy background
Luster: Dull to sub-vitreous

Identified April 28, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7.0 (Mohs scale); Color: Yellow-gold patterns on a brownish-red or earthy background; Luster: Dull to sub-vitreous; Structure: Cryptocrystalline; Cleavage: None

Formation & geological history

Formed in the Himalayan Mountains from fossilized bone, shells, and swamp plants pressurized with hematite and iron over millions of years (Eocene period).

Uses & applications

Primarily used for ornamental carvings (like the animal figurine shown), meditation stones, jewellery cabochons, and decorative interior pieces.

Geological facts

Also known as Cobra Jasper or Mariam Stone, the patterns are actually fossilized remains of ancient aquatic life, giving the appearance of Arabic calligraphy.

Field identification & locations

Identify by its unique 'script' patterns and high hematite content which makes it denser than many jaspers. Commonly sourced from the Himalayan region of India.