Square Slate Coasters set of 4
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A beautiful and practical set of 4 slate square coasters, hand-crafted in Portugal from high quality natural slate.
100% natural 5mm* thick plate, hand-cut with guillotined finish, split on both sides and with rubber feet to avoid scratching surfaces.
The coasters are sealed with mineral oil, thus increasing its durability.
Look after your board and will last a life time . Avoid dish washer. If necessary wash it with plenty of water and let it dry naturally.
The Portuguese slate, more specifically of Valongo, is known for its specific characteristics of the region where it is located and for the geological age of its quarries (Landeiliano Superior).
Slates are defined as rocks that cleave into small leaves along a cleavage plane resulting from a flow of schist originated by a low degree or far below metamorphism due to tectonic compression. They originate from clay sedimentary rocks and belong petrographically to a class that begins at the boundary between sedimentary and metamorphic formations and ends in epizonal-metamorphic phyllite formations.
Dimensions: 11 x 11 cm / 4.3 x 4.3 inch
Average Thickness: 0.5 cm / 0.2 inch