Maltese sculptor, whose name is given variously as Cafá or Gafá in Malta. He was the pupil and assistant of Ercole Ferrata, and was never either a pupil or assistant of Bernini, yet his style is similar in its astonishing virtuosity in the expression of religious ecstasy. His marbleGLOSSARYloosely applied to any hard limestone that can be sawn into thin slabs and will take a good polish so that it is suitable for decorative work; more strictly, it refers to metamorphosed limestones whose structure has been recrystallized by heat or pressure. Marbles are widely disseminated and occur in a great variety of colours and patterns, but certain types have been particularly prized by sculptors. The most famous of Greek white marbles in the ancient world was the close-grained Pentelic, which was quarried at Mount Pentelicon in Attica. The Elgin Marbles are carved in Pentelic. Widely used also were the somewhat coarser-grained translucent white marbles from the Aegean islands of Paros and Naxos. Parian marble was used for the celebrated Mausoleum at Halicarnassus. The pure white Carrara marble, quarried at Massa, Carrara, and Pietra Santa in Tuscany from the 3rd century BC, is the most famous of all sculptors' stones. It was used for the Apollo Belvedere, and was much favoured in the Renaissance, particularly by Michelangelo, who often visited the quarries to select material for his work. Neoclassical sculptors also favoured Carrara marble because of its ability to take a smooth, sleek surface, but it can look rather 'dead' compared with some of the finest Greek marbles. reliefs and figure groups display an exalted sensibility which exceeds even Bernini's own, and his masterpieceGLOSSARYA term now loosely applied to the finest work by a particular artist or to any work of art of acknowledged greatness or of preeminence in its field. Originally it meant the piece of work by which a craftsman, having finished his training, gained the rank of'master' in his guild., the Ecstasy of St Catherine of Siena (Rome, Santa Caterina a Monte Magnanapoli) is obviously based on Bernini's St Teresa. Cafá's very short life - only 10 working years - meant that many of his works were finished by others. There are also works in Roman churches (Sant'Agostino and Sant'Agnese in Piazza Navona), in Lima, Peru and in Malta. A signed bronzeGLOSSARYAn alloy of copper (usually about 90 per cent) and tin, often also containing small amounts of other metals such as lead or zinc. Since antiquity it has been the metal most commonly used in cast sculpture because of its strength, durability, and the fact that it is easily workable - both hot and cold - by a variety of processes. It is easier to cast than copper because it has a lower melting-point, and its great tensile strength makes possible the protrusion of unsupported parts - an advantage over marble sculpture. The colour of bronze is affected by the proportion of tin or other metals present, varying from silverish to a rich, coppery red, and its surface beauty can be enhanced when it acquires a patina. bust of Alexander VII is in New York (Metropolitan Museum).