Stone sculpture stone carving. Alabaster and softer kinds of serpentine, all about 3 on the Mohs scale, are more durable than soapstone. Alabaster, in particular, has long been cherished for its translucence. Limestone and sandstone, at about 4 on the Mohs scale, are the only sedimentary stones commonly carved. Limestone comes in a popular oolitic variety, about twice as hard as alabaster, that is excellent for carving. The harder serpentines can also reach 4 on the Mohs scale. Marble, travertine, and onyx are at about 6 on the Mohs scale. Marble has been the preferred stone for sculptors in the European tradition
Lutetian Limestone was the city's name in ancient times. Between the 17th and 19th centuries, Lutetian limestone was extracted by tunneling through hill-sides south of Paris. The stone comprises many of the grandest Paris buildings from the 17th century onwards, including parts of the Louvre, the Place de la Concorde and Les Invalides. Haussmann's grand renovation of Paris (1853-1870), which provided a sweeping and uniform style and an elusive coloring — ranging from bright white to butter-yellow to a dull nicotine-yellow/grey — for the city, relied upon buildings faced with Lutetian limestone. In the 20th century, open-cast quarries were developed which uncovered