trigonal
trigonal (rhombohedral) One of the seven
crystal systems (closely related to the
hexagonal system) in which the unit cell has the shape of a
rhombohedron, consisting of six
crystal faces all of which have two pairs of parallel sides. The crystals may be referred to four
crystallographic axes: one vertical axis of three-fold
crystal symmetry, and three equal, horizontal axes of two-fold symmetry which are separated by an angle of 120°. The minerals
calcite and
quartz always occur in this system.
Cite this article
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 "The Evening Standard (London, England)")
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A boot up the Bodmer.
Newspaper article from: The Evening Standard (London, England); 11/19/2001; ; 700+ words
; ...from a refined 15th century Florentine drawing once thought to be by Pollaiuolo and now attributed to the obscure Maso Finiguerra, to works by Poussin, Turner, Degas (a monotype), Renoir, Cezanne, Segantini, Giacometti and Henry Moore...
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A Dazzling Display From Art's Golden Age
Newspaper article from: Chicago Sun-Times; 6/26/1994; ; 700+ words
; ...Youth" by Filippino Lippi, seems to almost have been breathed onto the surface of the artist's green toned paper. Maso Finiguerra, a prominent goldsmith of his day, reversed the effect with his "Profile of a Youth," whose sharp contour almost...
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A boot up the Bodmer
Newspaper article from: Evening Standard - London; 11/19/2001; ; 700+ words
; ...from a refined 15th century Florentine drawing once thought to be by Pollaiuolo and now attributed to the obscure Maso Finiguerra, to works by Poussin, Turner, Degas (a monotype), Renoir, Czanne, Segantini, Giacometti and Henry Moore...
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Tripe, the Variety of Italian Life
Newspaper article from: The Washington Post; 6/25/2006; 700+ words
; ...Sergio Pollini, Via dei Macci near the Borgo La Croce (outside the restaurant Cibreo). Il Trippaio di Firenze, Via Maso Finiguerra near Via Palazzuolo (near the railway station). Marco Bolognesi, Via Gioberti near Piazza Beccaria. Trippaio...
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Florence, city of (football) culture
Newspaper article from: The Independent - London; 4/3/1996; ; 700+ words
; ...Hotel Sofia, Via Cavour 21 (00 39 55 283930), price pounds 18 single, pounds 25 double, or the Primavera at via Maso Finiguerra (00 39 55 287 072), which costs pounds 19.60 per person per night. Where to eat La Baraonda is at Via G Ghibellina...
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Maso Finiguerra
Book article from: The Columbia Encyclopedia, Sixth Edition
Maso Finiguerra , 1426-64, Florentine goldsmith and...Pollaiuolo created original designs that Finiguerra translated into different media. An...Florence, executed in niello engraving by Finiguerra. Others include the Triumph of Bacchus...
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Finiguerra, Maso
Book article from: The Concise Oxford Dictionary of Art and Artists
Finiguerra, Maso (1426–64). Florentine goldsmith, engraver, designer...in niello (a type of decorative metal inlay). Vasari asserts that Finiguerra was the inventor of copper engraving and although this claim has been...
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niello
Book article from: The Oxford Dictionary of Art
...impressions from them, and many early examples of Italian line engraving show the influence of the niello craft. Maso Finiguerra , whom Vasari credits with the invention of line engraving, was both niellist and line engraver. In the 18th and...
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