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Andesita

Andesite

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Rock Class Igneous Rock
Rock Subclass
Volcanic
Origin Cabo de Gata, Almeria
Size

Medium: 3.00-4.00 cm

Large: 4.00-5.00 cm

Mahogany Obsidian has brown bands, which are due to the presence of iron oxides. It is also known as " Mahogany Obsidian".

Obsidian, or volcanic glass, is molten lava that has cooled quickly. Its composition is mainly silica oxides, being very similar to that of granite or rhyolite.

The piece you receive may differ slightly from the photo shown, as the rocks are natural and no pieces are identical. The size is approximate.