15 sample specimens • one amazing planet

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Every rock has a story. What will you discover?

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6 specimens to discover

Stefan's Cool Finds

Ammonite reference specimenFossil

A coiled shell from a fast-evolving group of ancient ocean animals.

CretaceousMadagascar
Trilobite reference specimenFossil

A remarkable fossil arthropod with a three-lobed armoured body.

DevonianMorocco
Quartz reference specimenMineral

One of Earth's most common minerals and a master of crystal shapes.

Hardness 7Brazil
Amethyst reference specimenMineral

Quartz coloured violet by iron and natural irradiation.

Hardness 7Brazil
Malachite reference specimenMineral

A vivid green copper mineral famous for rings and flowing bands.

Hardness 3.5–4DR Congo
Granite reference specimenRock

A coarse-grained rock made as magma cooled slowly underground.

igneousCanada