Zebra Stone

Other Silicates & Gemstones

Zebra stone, or zebra rock, is a locality-named ornamental siltstone rather than a mineral species. It consists of ivory, quartz-rich clay crossed by rhythmic reddish-brown hematite bands, spots, rods, and other patterns whose exact formation mechanism is still debated.

Identity

Material or variety: Patterned siltstone
Scientific or material identity: Zebra stone (patterned sedimentary rock)
Classification: Rock or mixed mineral material
Aliases or trade names: Zebra rock · Kimberley siltstone
Composition or formula: Fine-grained silica and clay minerals with iron-rich bands
Crystal system or structure: Aggregate or composite structure
Geological or manufacturing origin: Forms or accumulates in sedimentary environments.
Mohs hardness: 3 to 4

Origins

Australia

Appearance & optical properties

cream and chocolate-brown zebra-striped stone.

History & discovery

Scientific literature first mentioned zebra rock in 1924. It is confined to small outcrops in the East Kimberley and Lake Argyle catchment of northwestern Australia; proposed explanations for its patterns include iron movement in ancient acidic soils and chemical banding during later fluid alteration, and research continues to test these models.

Uses & care

Common uses: Its contrasting natural patterns are displayed in polished slabs, jewelry, carvings, ornaments, and architectural features such as Kununurra's historic Zebra Rock Bar.

Jewellery

5 pieces of Zebra Stone jewellery. Learners earn each one in DigMyGem by learning words; until then it shows as a silhouette.

Zebra Bangle
Bracelet
A polished bangle carved from a single hoop of zebra stone, its black and white stripes running unbroken around the wrist. It is a favourite of travellers to the Kimberley.
Pinto Pendant
Pendant
A silver pendant cut as a long oval of zebra stone, its stripes set vertical like a painted pony's coat. The reverse of the stone is left unpolished.
Striped Sceptre
Sceptre
A slender ceremonial wand of pale metal capped with a polished zebra-stone orb, its stripes echoing the banded staffs of northern ceremony. The stone alone carries the power the wand claims.
Kimberley Stripe Ring
Ring
An imagined signet ring of zebra stone, cream with rust-red stripes and spots, from the Kimberley region of Western Australia.
Savanna Stripe Collar
Necklace
An imagined gold collar of zebra stone plaques, cream with rust-red stripes like the coats of a herd on the plains.