The studio's Caterina Moretti used dark grey volcanic rock to make the range of modular Lava Shelves, which include a stackable, box-like cubby as well as an L-shaped bookshelf.
"These shelves can be transformed in multiple ways when arranged in a room," said the studio. "A bookshelf or a credenza, an altar or a nook for a special collection."
The shelves can be either hung on a wall or sat on a desk, where they can be stacked one on top of another if desired.
Guadalajara-based Peca is led by Moretti together with designer Ana Saldañan. They founded the studio together in 2007.
The shelves are the latest addition to the designers' Lava collection, which also includes a series of plates made from the same material.
Other designers to have used volcanic rock in home accessories include Simone Farresin and Andrea Trimarchi of Formafantasma, who milled it into furniture, and Jeonghwa Seo, who shaped the material into a collection of desk accessories.
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