Illuminaría of noble materials and of the Earth at present. Design of straight lines. It is born of the fusion of crosses inscribed on each of the faces of a quadrangular cube. It also defines 3 interlocking square frames, each positioned in the basic direction of the x, y, z coordinate axes. ENLACE A LA TIENDA | CREUCUB DE SUELO | CREUCUB DE PIE | CREUCUB DE MESA