sedimentary

Calligraphy Stone

Fossiliferous Limestone (containing Hematite and Shells)

AI-generated identification · may be incorrect

Hardness: 3-4 (Mohs); Color: Golden yellow, tan, or orange patterns on a chocolate brown matrix; Luster: Dull to waxy; Structure: Finely crystalline to fossiliferous; Cleavage: None.

Hardness: 3-4 (Mohs)
Luster: Dull to waxy

Identified June 2, 2026More sedimentary →

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Physical properties

Hardness: 3-4 (Mohs); Color: Golden yellow, tan, or orange patterns on a chocolate brown matrix; Luster: Dull to waxy; Structure: Finely crystalline to fossiliferous; Cleavage: None.

Formation & geological history

Formed in an ancient sea bed where shells and organic debris were compressed with iron-rich minerals (hematite) over millions of years, typically during the Cretaceous period.

Uses & applications

Primarily used for lapidary work including cabochons, beads, carvings, and metaphysical collecting.

Geological facts

Also known as Elephant Skin Jasper, Mariam Stone, or Arabic Stone. The 'calligraphy' refers to the intricate, script-like patterns formed by petrified shells and fossils.

Field identification & locations

Identified by its distinctive script-like yellow patterns on a dark brown background. Commonly found in the Himalayan mountains of India and parts of Africa.