Stone Discoveries: Bianco Avorio, Grigio Alpi, and Grigio Argento

Owing to its refined aesthetic, and warm, neutral colors, Grassi Pietre stones, namely Bianco Avorio, Grigio Alpi, and Grigio Argento, are particularly suitable for both classical and modern applications. A typical characteristic of the stones is their tendency to grow harder with time, owing to their calcareous structure. This makes them suitable for large external surfaces.












Bianco Avorio is characterized by its light ivory color. It is the result of the sedimentation of innumerable minute fossils, which create its thin, flowery texture through the presence of fossil algae. It is a popular stone for classical sculpture, and suitable for exterior and interior cladding, floors, staircases, and every other building component imaginable.









Grigio Argento is a modern material characterized by its typical grey color. Its unique texture is characterized by the presence of macrofossils in a grey sand matrix.










Similarly, Grigio Alpi, a light grey stone, is characterized by the presence of the same fossil content, and has had a recent resurgence in popularity in modern art and architecture.










A wide variety of effects can be achieved through hand finishing, and it is through this process that the striking aesthetic qualities of the material are realized. In a rigato, or strirated, finish, the materials convey a natural rustic hardiness which make them suitable for an infinitude of exterior applications. In a levigato, or honed, or spazzolato, or brushed, finish, the aesthetic properties of the stones’ fossil content are highlighted.

The material was used extensively by the Venetian Renaissance architect Andrea Palladio, namely in his “Villas of the Veneto,” designated a UNESCO World Heritage Site in 1994.

The Grassi family started working in these quarries in 1850 and is still based in its historical headquarters in Nanto (Vicenza). Grassi Pietre’s close proximity to the quarries on the Berici Hills allows them to produce considerable amounts of material while maintaining constant supervision over quarrying activity. The company can check and select various stratifications in accordance with the requirements of a given order.

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