925 |
Alabastro ciliegino, locality unknown |
Compact banded travertine composed mainly of fine-grained calcite, with some bands particularly rich in included red hematite. Light brown areas are wax filler. |
387 |
Alabastro de'Bagni di S. Filippo, from Bagni San Filippo, Siena, Tuscany, Italy |
Compact banded calcite travertine of very finely fibrous calcite. |
388 |
Alabastro de'Bagni di S. Filippo, from Bagni San Filippo, Siena, Tuscany, Italy |
Compact banded calcite travertine; fluoresces yellow-white under longwave uv radiation. |
361 |
Alabastro di Breschia, from Brescia, Lombardy, Italy |
Compact travertine composed of bands of finely fibrous and fine-grained calcite. |
359 |
Alabastro di Busca, from Busca, Cuneo, Piedmont, Italy |
Banded compact calcite travertine. Note bands of granular white calcite. Specimen has a particularly high polish. |
360 |
Alabastro di Busca, from Busca, Cuneo, Piedmont, Italy |
Banded compact calcite travertine. Note bands of granular white calcite. |
350 |
Alabastro di Camerino, from Camerino, Ancona, Marches, Italy |
Compact banded travertine composed of very coarse, transparent, to very fine, translucent calcite. |
371 |
Alabastro di Civitavecchia, from Civitavecchia, Rome, Lazio, Italy |
Breccia of travertine clasts, peloids, algal debris and fine-grained ferruginous detritus in a sparite matrix . |
369 |
Alabastro di Collepardo, alabastro ghiaccione, from Collepardo, near Frosinone; or from Capo Circeo, Latina, Lazio, Italy |
Very pure compact banded travertine composed of parallel prismatic colourless calcite crystals. A speleothem deposit. |
340 |
Alabastro di Mizzole, gioia di Mizzole, from Mizolle, Val Pantena, Verona, Veneto, Italy |
Compact banded travertine composed of coarse-grained calcite. |
362 |
Alabastro di Napoli, from Naples, Campania, Italy; or perhaps alabastro di Busca, from Busca, Cuneo, Piedmont, Italy |
Banded compact coarse-grained travertine, with bands of white granular calcite. |
339 |
Alabastro di Palermo, from Palermo, Sicily, Italy |
Coarse-grained calcite travertine deposit on a bioclastic limestone. Matrix is a calc-rudite-limestone conglomerate dominated by large benthic forams and limestone intraclasts of calcareous algae. Note the stylolites. |
938 |
Alabastro di Palestrina, from Palestrina, Rome, Lazio, Italy |
Compact banded travertine composed of acicular calcite crystals, with a ferruginous micritic infill between grains. Cavities in the surface are filled with brown wax, intensifying the colour a little. |
311 |
Alabastro di Palombara, possibly from Iano di Montaione, Siena, Tuscany, Italy, but more probably Pamukkale, Denizli, Turkey |
Compact finely banded travertine composed mainly of fine-grained rather opaque white calcite. Bushy dendritic growths of brown iron oxides result from cyanobacterial activity. |
347 |
Alabastro di Perugia; Perugia, Umbria, Italy, may not be correct. |
Very compact banded travertine composed of finely acicular/granular calcite crystals. Yellow areas are artificial filler. |
349 |
Alabastro di Pierosara, from Pierosara, near Fabriano, Ancona, Marches, Italy |
Compact travertine composed of coarse columnar calcite. |
346 |
Alabastro di Pisa, probably Alabastro di Volterra, from Pisa, Tuscany, Italy, and very probably from the area around Volterra or Castellina Marittima. |
Fine-grained compact gypsum, the variety which geologists now call alabaster. A vein of fibrous gypsum crosses the side of the specimen. |
367 |
Alabastro di S. Felicita, from Santa Felicita, Capo Circeo, Latina, Lazio, Italy |
Compact banded travertine composed of medium to coarse-grained columnar calcite crystals |
939 |
Alabastro di S. Felicita, from Santa Felicita, Capo Circeo, Latina, Lazio, Italy |
A very coarse-grained compact banded calcite travertine, of a pale golden yellow colour. |
374 |
Alabastro di Sabina, Alabastro ghiaccione, from Sabina, or from Capo Circeo, Latina, Lazio, Italy |
Very pure banded calcite travertine composed of very coarse granular colourless crystals and fine grained white calcite, banding evident in a few places. It is almost certainly a speleothem. |
335 |
Alabastro di Sestri, from Sestri Ponente, Genoa, Liguria, Italy |
Iron-stained impure tufa with coatings of banded compact travertine composed of very fine fibrous crystals of calcite. |
538 |
Alabastro di Siena, from Siena, Tuscany, Italy |
Banded yellow calcite, probably a compact banded travertine. |
348 |
Alabastro di Siena; Siena, Tuscany, Italy, may not be correct. |
Very compact banded travertine composed of finely acicular/granular calcite crystals. Yellow areas are artificial filler. |
363 |
Alabastro di Torrita, perhaps from either Torrita Tiberina, Roma, Lazio, Italy or Torrita di Siena, Siena, Tuscany, Italy |
Banded compact travertine of very fine fibrous calcite, flesh pink on sides of specimen. |
365 |
Alabastro di Trento, from Trent, Trentino-Alto Adige, Italy; or perhaps travertino di Tivoli, from Tivoli, Roma, Lazio, Italy |
Banded travertine, ferruginous bushy growths are the result of cyanobacterial growth in the hot water. Banding and abundant cavities are clearly visible on the sides of the sample. |
353 |
Alabastro eburneo d'Orte from Orte, Viterbo, Lazio, Italy |
A compact, fine-grained and finely banded, pure calcite travertine. |
316 |
Alabastro fiorito, almost certainly from the Pamukkale area, Denizli, Turkey |
Medium-grained compact banded travertine composed mainly of calcite, in some bands as colourless prismatic crystals. It is coloured by iron oxides, the bushy dendritic growths probably generated by cyanobacterial action. |
317 |
Alabastro fiorito, from Pamukkale area, Denizli, Turkey |
Medium-grained compact banded travertine composed mainly of calcite. It is coloured by iron oxides, the bushy dendritic growths probably generated by cyanobacterial action. |
301 |
Alabastro fiorito, most probably from the Pamukkale area, Denizli, Turkey |
Compact banded travertine, brecciated in places, composed of fine- to medium-grained calcite with some orange-brown ferruginous bands. Abundant cavities contain greyish brown wax filler. |
318 |
Alabastro fiorito, most probably from the Pamukkale area, Denizli, Turkey |
Compact banded travertine composed of coarse acicular to granular calcite. The sides of the specimen show the banding clearly. |
930 |
Alabastro fortezzino, probably from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Fine-grained compact travertine with some slender orange bands, hosted in a nummulitic limestone. |
304 |
Alabastro ghiaccione, from Capo Circeo, Latina, Lazio, Italy |
Compact banded travertine composed of parallel columnar colourless crystals of calcite interbanded with fine grained white calcite. |
343 |
Alabastro gioia del ponte di Vezia, from Verona, Veneto, Italy |
Compact travertine composed of very coarse columnar calcite. The surface has a particularly waxy surface indicating it may have been acid-etched. |
319 |
Alabastro sardonico, locality unknown |
Compact banded travertine composed of coarsely crystalline calcite coloured red by hematite, adjoining or interbanded with colourless very coarsely crystalline calcite. |
344 |
Alabastro scuro di Collepardo, from Collepardo, Frosinone, Lazio, Italy |
Banded compact travertine composed of very fine-grained, grading to coarse-grained, columnar calcite. |
302 |
Alabastro, cotognino a onde, locality not known. Perhaps from Hatnub, Mallawi, or another location in the Nile valley, Eastern desert, Egypt. |
Compact banded travertine cut parallel to the banding, composed of medium-grained columnar/granular calcite, with a few scattered aggregates of acicular goethite or manganese oxide crystals. Some of the sparry limestone host rock is present. Grey patches contain clay and other debris. Small pink area is filler. |
511 |
Alberese limestone, from Florence, Tuscany, Italy; and most probably from Valdarno |
Micritic limestone or calcareous marl from the Upper Cretaceous Alberese Formation. Fractures are calcite-filled. |
704 |
Amazon stone, from Russia; most probably from Miass, Chelyabinsk Oblast. |
Amazonite or amazon stone, a variety of microcline feldspar. |
712 |
Amethyst, locality unknown |
Amethyst, the purple variety of quartz, part of a vein or geode showing the typical colour zoning of the crystals described by Corsi. |
557 |
Arenaria antica, locality unknown |
Originally a micritic limestone with indeterminate spar-filled ?brachiopods, this is now partly recrystallised. |
559 |
Arenaria antica, locality unknown |
Coarse-grained biocalcarenite, with algal, foram, and molluscan grains dominant. |
961 |
Arenaria antica, locality unknown |
Coarse-grained bio calcarenite, with algal, foram, molluscan grains dominant. Matrix is colourless calcite. |
554 |
Arenaria di Brianza, from the Brianza area, Lombardy, Italy |
Fine-grained biocalcarenite with micritic/microspar matrix. |
555 |
Arenaria di Siena, from Siena, Tuscany, Italy |
Bioclastic limestone with microspar matrix. It has white algal grains and spar-filled anastomising vugs, probably incipient birds-eyes. |
556 |
Arenaria di Viggiù, from Viggiù, Varese, Lombardy, Italy |
Bioturbated fine biocalcarenite. The grains are predominantly echinoderm, probably crinoidal. It has solution seams/incipient stylolites. |
512 |
Argilla antica, locality unknown |
Most probably a calcareous mudstone, it contains planktonic forams. |
514 |
Argilla di Tivoli, from Tivoli, Roma, Lazio, Italy |
Brecciated fine-grained limestone. A fossiliferous biomicrite with scattered bioclasts (calcispheres or radiolaria). Fractures are calcite-filled. |
72 |
Ashford black marble, Derbyshire black marble, from Arrock mine or from quarries on Sheldon Moor, near Ashford-in-the-Water, Derbyshire, England |
Bituminous fine-grained limestone of Carboniferous age. |
248 |
Astracane di Verona, lumachella di Verona, lumachella Pernise, from Val Pernise, near Grezzana, Val Pantena, Verona, Veneto, Italy |
Limestone. A molluscan biosparite crowded with whole and fragmentary brachiopods (probably terebratulids) and bivalves, replaced by sparry calcite. A few gastropods are evident, and it has stylolites. |
265 |
Astracane di Verona, lumachella di Verona, lumachella Pernise, from Val Pernise; near Grezzana, Verona, Veneto, Italy |
Limestone. A molluscan biosparite crowded with whole and fragmentary brachiopods (probably terebratulids) and bivalves, replaced by sparry calcite. A few gastropods are also present. A stylolite can be seen. |
235 |
Astracane di Verona, lumachella di Verona, from Stalavena, Verona, Veneto, Italy |
A fossiliferous micrite/microsparite limestone with abundant recrystallised, predominantly brachiopod (probably terebratulid) debris. |
224 |
Astracane di Verona, lumachella di Verona, from Verona, Veneto, Italy |
Limestone; a fossiliferous micrite/microsparite with abundant recrystallised brachiopod (probably terebratulid) and bivalve debris. |
225 |
Astracane di Verona, lumachella di Verona, from Verona, Veneto, Italy |
Limestone. Fossiliferous biosparite with abundant recrystallised molluscs, mainly brachiopod (probably terebratulid) and bivalve debris, other bioclasts, and possible limestone intraclasts. It has stylolites and calcite-filled fractures. |
245 |
Astracane di Verona, lumachella di Verona, from Verona, Veneto, Italy |
Fossiliferous limestone. The matrix is microspar/micrite; crowded with whole and fragmentary brachiopod (probably terebratulid) and bivalve debris, which is commonly recrystallised or replaced by sparry calcite. |
264 |
Astracane di Verona, lumachella di Verona, from Verona, Veneto, Italy |
Limestone. A molluscan biosparite crowded with whole and fragmentary brachiopods (probably terebratulids) and bivalves, replaced by sparry calcite, and with a few scarce gastropods. Some stylolites are evident. |
270 |
Astracane di Verona, lumachella di Verona, from Verona, Veneto, Italy |
Mesozoic fossiliferous burrowed micritic limestone with abundant bioclasts: whole and fragmentary terebratulid brachiopods, crinoid debris, small benthic forams, and calcareous algae. It has spar-filled fractures and stylolites. |
256 |
Astracane di Verona, lumchella di Verona, from Verona, Veneto, Italy |
Limestone. Molluscan biosparite crowded with whole and fragmentary brachiopods (probably terebratulids) and bivalves which are replaced by sparry calcite. It contains a few gastropods and has stylolites. |
722 |
Aventurine quartz, from Siberia, Russia; or possibly from Egypt |
Quartzite coloured by hematite and goethite, in places the grain coatings giving some aventurine effect. |
151 |
Bardiglio fiorito, from the Apuan Alps, Tuscany, Italy |
Tectonite of fine- to medium-grained white or grey calcite marble fragments in black graphite-rich marble; crushed and folded. |
149 |
Bardiglio, from Carrara, Massa e Carrara, Tuscany, Italy |
Sheared reticulated mass of fine-grained buff-coloured, and medium-grained, white calcite marble, grey graphite-rich in places. |
156 |
Bardiglio, from Carrara, Massa e Carrara, Tuscany, Italy |
A folded sheared limestone breccia, now a calcite marble, some layers with either finely disseminated graphite or sulphide minerals. The grain-size of the calcite ranges from very coarse to fine. |
157 |
Bardiglio, from Carrara, Massa e Carrara, Tuscany, Italy |
Deformed fine- to medium-grained calcite marble. Probably originally a breccia, now much stretched and flattened. Note the yellow ferruginous fill to stylolites. |
160 |
Bardiglio, from Carrara, Massa e Carrara, Tuscany, Italy |
Fine to medium-grained marble with variable traces of graphite/sulphide minerals and showing some lamination and folding. |
153 |
Bardiglio, from the Apuan Alps, Tuscany, Italy; very likely from Carrara, Massa e Carrara. |
Brecciated and veined fine-grained calcite marble, the veins of white calcite are in places iron-stained yellow. |
154 |
Bardiglio, from the Apuan Alps, Tuscany, Italy; very likely from Carrara, Massa e Carrara. |
Fine-grained calcite marble with stylolites still clearly evident. The white areas are coarser-grained calcite. |
676 |
Basalte antico, Bekhen-stone, from Wadi Hammamat, Eastern Desert, Egypt |
Most probably a metagreywacke, a metamorphosed turbidite deposit with sand to silt sized particles. |
678 |
Basalte di Bolsena, from Bolsena, Viterbo, Lazio, Italy |
Metatuff with abundant quartz and hornblende crystals of varying size up to 2mm in a poorly sorted crystal-lithic matrix. Shows weakly defined flow-banding. |
677 |
Basalte di Venezia, from Venice, Veneto, Italy |
'Greenstone' - a brecciated metabasaltic tuff with calcite veins. Some clasts show weak graded bedding. |
675 |
Basalte fiorita, locality unknown |
Serpentinised metabasalt with rounded aggregates of crystallites. Some small vesicles are filled with dark calcite. |
674 |
Basalte listata, possibly from Wadi Hammamat, Eastern Desert, Egypt |
Most probably a metagreywacke, a metamorphosed turbidite deposit with sand to silt sized particles. |
672 |
Basalte scura, very possibly from Wadi Hammamat, Eastern Desert, Egypt |
Most probably a metagreywacke, a metamorphosed turbidite deposit with sand to silt sized particles. |
673 |
Basalte verde, locality unknown |
'Greenstone' - a metabasalt or metabasaltic tuff flecked with iron-rich spots. |
893 |
Baveno granite, rosa Baveno, from Baveno, Novara, Piedmont, Italy |
Coarse hornblende granite with pale pink perthitic potash-feldspar. |
249 |
Belgian red marble, rouge royale, from Namur, Belgium |
Devonian fine-grained red burrowed limestone with calcite-filled stromatactis. It is rich in bioclasts. Fossils include articulate brachiopods, orthocone nautiloids, and echinoderm debris. |
861 |
Beola di Milano, from Milan, Lombardy, Italy |
Mica schist. |
130 |
Bianco e nero di Monte Pulciano, possibly from Montepulciano, Siena, Tuscany, Italy (see notes) |
Black limestone with white calcite-filled fractures and abundant stylolites. Stylolites and thin fractures contain yellow siderite. |
129 |
Bianco e nero di Portoferraio, from Portoferraio, island of Elba, Livorno, Tuscany, Italy |
Black limestone breccia with white calcite-filled veins and fractures, some en echelon and fibrous in places. Abundant stylolites and thin fractures are filled with yellow siderite. |
892 |
Bianco Montorfano, from Montorfano, Novara, Piedmont, Italy |
Hornblende biotite granite. |
139 |
Bigio antico, bigio morato, from Sigacik (ancient Teos), Izmir Province, Turkey |
Graphitic medium-grained marble with abundant stylolites, showing relics perhaps of crinoidal debris? Specimen is waxed and polished. |
141 |
Bigio antico, bigio morato, locality unknown |
Grey-brown bioturbated limestone with a few mollusc fragments. Note white coarse-grained spar-filled cavities and fractures, and abundant stylolites. The surface is waxed and polished. |
140 |
Bigio antico, bigio morato, possibly from the Island of Chíos, North Aegean, Greece |
Partially recrystallised fine-grained limestone. Relics of corals/crinoids/bivalves are preserved. Note a few spar-filled fractures and stylolites. |
147 |
Bigio antico, marmor Lesbium, from Moria, Island of Lesbos, North Aegean, Greece |
A very coarse-grained graphite-bearing calcite marble. |
148 |
Bigio antico, marmor Lesbium, from Moria, Island of Lesbos, North Aegean, Greece |
A very coarse-grained graphite-bearing calcite marble. |
142 |
Bigio antico, locality unknown |
Very coarse-grained marble with rounded white clasts and net-veined graphitic matrix. |
143 |
Bigio antico, locality unknown |
A very coarse-grained marble with graphite-rich net-veining. Brown areas are filler/polishing compound. |
146 |
Bigio antico, locality unknown |
A generally fine-grained marble with extensive development of microveins, alteration along some microveins affecting grain-size and colour. Note brown is filler/polishing compound. |
145 |
Bigio antico, probably marmor Lesbium, most probably from Moria, Island of Lesbos, North Aegean, Greece |
Mylonitic marble. A coarse-grained lineated marble with patchy graphitic net-veins. |
543 |
Blue John fluorite, from Castleton, Derbyshire, England |
Hydrothermal vein deposit of colour-zoned purple-blue/colourless fluorite, the variety known as Blue John. |
237 |
Botticino fiorito, from Botticino, Brescia, Lombardy, Italy |
Limestone; a fossiliferous micrite with calcareous algae. |
951 |
Breccia bigia, locality unknown |
Well-sorted polymict limestone conglomerate. |
399 |
Breccia corallina giallastra from Verzirhan, Bilecik,Turkey or breccia Godoy |
Polymict limestone conglomerate. Clast boundaries and contacts sutured. Note stylolites and extensive calcite-filled fractures. |
404 |
Breccia corallina, from Verzirhan, Bilecik,Turkey |
Limestone breccia with extensive solution-modified stylolitic clast contacts, and calcite-filled fractures/veins. |
944 |
Breccia corallina, from Verzirhan, Bilecik,Turkey |
Weakly metamorphosed limestone breccia with stylolitised clast boundaries, and with small cavities filled with sparry calcite. |
950 |
Breccia corallina, from Verzirhan, Bilecik,Turkey |
Tectonic brecciated limestone breccia, heavily fractured with stylolites and solution-modified clast boundaries. |
207 |
Breccia de' Gherardeschi, perhaps from Tuscany, Italy |
Limestone. A bio-pel micrite crowded with small intraclasts and shell debris. Anastomosing white material is calcite-replaced scleractinian coral. Note the extensive development of stylolites. |
460 |
Breccia de'Colli Euganei, probably from Verona or Vicenza regions, Veneto Italy |
Brecciated limestone with pervasive stylolites. |
468 |
Breccia degli Appennini, from Apennines, Italy |
Limestone. A debris-flow deposit of bio- and intraclast-rich biomicrite. Stylolites and manganese oxide dendrites are present. |
469 |
Breccia degli Appennini, from Apennines, Italy |
Matrix-supported bio- and intraclast-rich biomicrite limestone. It is poorly sorted; possibly resedimented in a debris flow. |
470 |
Breccia degli Appennini, from Apennines, Italy |
Bioturbated fossiliferous biomicrite limestone. A packstone (grain-supported, the bioclasts in contact). It has fractures and stylolites. |
489 |
Breccia degli Appennini, from the Apennines, Italy |
Deformed granitoid; porphyroblasts are quartz dominantly, perhaps originally vein quartz, now disrupted. |