Corsi Collection of Decorative Stones

Page 10 of 10, showing 901 - 1000 of 1000 stones.
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OUMNH number Name and quarry location Geological description
OUMNH number Name and quarry location Geological description
731stone 731 Sicilian jasper, diaspro-agata di Giuliana, from Giuliana, Palermo, Sicily, Italy Brecciated brown jasper; agate matrix is patchy with hematitic inclusions in some bands; crystalline quartz fills voids. Buff-coloured areas are filler.
739stone 739 Sicilian jasper, diaspro-agata di Milazzo, from Milazzo, Messina, Sicily, Italy Brecciated jasper; matrix forms faint agate halos around clasts, elsewhere it is colourless quartz. Single crystals may enclose many small clasts or fill a whole fracture.
732stone 732 Sicilian jasper, diaspro-agata di Monreale, from Monreale, Palermo, Sicily, Italy Brecciated brown jasper with matrix and fracture fills of colourless crystalline quartz.
734stone 734 Sicilian jasper, diaspro-agata di Selinunte, from Selinunte, near Marinella, Trapani, Sicily, Italy Yellow brecciated jasper with chalcedony matrix, faintly agate banded in places with few translucent red/yellow bands. Note crystalline quartz-filled fractures contain layers of ?muscovite crystals.
746stone 746 Sicilian jasper, from Sicily, Italy Brecciated jasper; part red with colourless agate/crystalline quartz matrix, part yellow-brown with colourless crystalline quartz matrix. Later fractures are also filled with colourless quartz.
747stone 747 Sicilian jasper, from Sicily, Italy Brecciated yellow jasper, heavily fractured, with chalcedony/agate-filled fractures and cement. Orange red 'veins' are artificial filler in open fractures.
745stone 745 Sicilian jasper, most probably diaspro di Giuliana, from Sicily, Italy, and most probably from Giuliana, Palermo. Brecciated red jasper with rims of opaque white chalcedony. Colourless crystalline quartz matrix is iron-stained and vughy away from clasts. Clasts have colourless quartz-filled fractures.
768stone 768 Sicilian jasper, probably diaspro di Collesano, probably from Collesano, Palermo, Sicily, Italy Yellow-brown jasper with cavities and fractures infilled with chalcedony which is agate-banded in places, or with colourless crystalline quartz. Some dendrites of manganese/iron oxides are evident.
770stone 770 Sicilian jasper, probably diaspro di Troina, from Troina, Enna, Sicily, Italy Radiolarian chert coloured by included limonite mainly concentrated between radiolaria tests. The few thin fractures are agate-banded.
390stone 390 Spanish broccatello, from Tortosa, Tarragona, Spain Burrowed fossiliferous limestone with large bivalves.The original calcitic shell layers are preserved in some places, elsewhere, sparry calcite infills voids left by desolution of aragonite shells.
391stone 391 Spanish broccatello, from Tortosa, Tarragona, Spain Burrowed fossiliferous limestone with large bivalves.The original calcitic shell layers are preserved in some places, elsewhere, sparry calcite infills voids left by desolution of aragonite shells.
392stone 392 Spanish broccatello, from Tortosa, Tarragona, Spain Burrowed fossiliferous limestone with large bivalves.The original calcitic shell layers are preserved in some places, elsewhere, sparry calcite infills voids left by desolution of aragonite shells.
393stone 393 Spanish broccatello, from Tortosa, Tarragona, Spain Burrowed fossiliferous limestone with large bivalves.The original calcitic shell layers are preserved in some places, elsewhere, sparry calcite infills voids left by desolution of aragonite shells.
11stone 11 Statuary marble, marmo statuario, almost certainly statuario di Monte Altissimo, from Monte Altissimo, north of Seravezza, Lucca, Tuscany, Italy Fine-grained calcite marble
8stone 8 Statuary marble, marmo statuario, most probably from Carrara, Seravezza or elsewhere in the Apuan Alps of Tuscany, Italy; but could also be from Mt Pentéli, Attica, Greece Fine-grained calcite marble
280stone 280 Stellaria bianca di Verona, from Verona, Veneto, Italy Fossil wood with borings of the shipworms (teredinid bivalves), borings filled with white fossiliferous micritic limestone or spar. Alveoliria forams are present in sediment fills.
282stone 282 Stellaria rossa di Verona, from Verona, Veneto, Italy Recrystallised colonial scleractinian coral with spar-filled voids. Interstices between coralites are filled with yellow bioclastic limestone.
227stone 227 Stellaria, locality unknown; not from Egypt Coral limestone. A recrystallised colonial scleractinian (= hexacoral) coral, of Mesozoic or more recent age.
795stone 795 Swedish porphyry, from Älvdalen, Dalarna, Sweden Lamprophyre (minette group). Poikilocrysts of brown (?kaersutitic) amphibole up to 25mm enclosing subhedral crystals of pyroxene, feldspar and opaque mineral. Groundmass contains carbonate and possible feldspathoid.
382stone 382 Tartaro di Terni, alabastro di Terni, from Terni, Umbria, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
383stone 383 Tartaro di Terni, alabastro di Terni, from Terni, Umbria, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
384stone 384 Tartaro di Terni, alabastro di Terni, from Terni, Umbria, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
385stone 385 Tartaro di Terni, alabastro di Terni, from Terni, Umbria, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
386stone 386 Tartaro di Terni, alabastro di Terni, from Terni, Umbria, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
377stone 377 Tartaro di Tivoli, alabastro di Tivoli, from Tivoli, Lazio, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
378stone 378 Tartaro di Tivoli, alabastro di Tivoli, from Tivoli, Lazio, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
379stone 379 Tartaro di Tivoli, alabastro di Tivoli, from Tivoli, Lazio, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
380stone 380 Tartaro di Tivoli, alabastro di Tivoli, from Tivoli, Lazio, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
381stone 381 Tartaro di Tivoli, alabastro di Tivoli, from Tivoli, Lazio, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
942stone 942 Tartaro di Tivoli, from Tivoli, Rome, Lazio, Italy Compact banded travertine composed of fibrous to very finely acicular calcite crystals, perhaps originally aragonite.
5stone 5 Thasian marble, marmo Thaso, most probably from Cape Vathy, Thasos (Thassos), East Macedonia and Thrace, Greece Coarse-grained dolomite marble.
251stone 251 Travertino di Monte Catini, from Montecatini Terme, Pistoia, Tuscany, Italy Limestone, brown ferruginous in places, composed of brecciated travertine, algal fragments and other bioclasts. Cavities are mostly filled with sparry calcite.
14stone 14 Travertino di Tivoli, travertino Romano, from Tivoli, Lazio, Italy Porous banded travertine deposit, specimen cut parallel with the bedding.
565stone 565 Verde antico, from Larissa, Thessaly, Greece A breccia of serpentinite, schistose calc-silicate and crystalline marble clasts in a lime-green serpentinite matrix.
566stone 566 Verde antico, from Larissa, Thessaly, Greece Breccia with clasts mainly of serpentinite/ophicalcite, a few of marble; extensive scattered crystals of oxide minerals, in a serpentine and calcite matrix. Heavily fractured, many fractures are filled with cross-fibres of chrysotile serpentine.
962stone 962 Verde antico, from Larissa, Thessaly, Greece Breccia with clasts mainly of serpentinite/ophicalcite, and a few of marble.
211stone 211 Verde di Bagnaia, from Bagnaia, island of Elba, Livorno, Tuscany, Italy; or perhaps ribbon jasper from the Ural Mountains, Russia. Siliceous rock featuring abundant green reduction spots; it may possibly be a metamorphosed burrowed mudstone. The specimen is coated with beeswax.
701stone 701 Verde di Corsica mandolato, from near Orezza, Monte San Petrone, Haute-Corse, Corsica, France Sheared metagabbro, the diopside and actinolite-tremolite both coloured bright green by trace chromium.
700stone 700 Verde di Corsica, smaragdite, from near Orezza, Monte San Petrone, Haute-Corse, Corsica, France Metagabbro, the diopside and actinolite-tremolite both coloured bright green by trace chromium.
579stone 579 Verde di Prato, from Prato, Florence, Tuscany, Italy Serpentinised peridotite (lherzolite) - coarse-grained, former olivine, orthopyroxene and clinopyroxene are still evident.
580stone 580 Verde di Prato, from Prato, Florence, Tuscany, Italy Serpentinised peridotite with coarse original texture, and fine detail in the serpentinisation (low temperature alteration) preserved. Vein is quartz.
581stone 581 Verde di Prato, from Prato, Florence, Tuscany, Italy Serpentinisied peridotite with pyroxenitic vein or band.
589stone 589 Verde di Prato, from Prato, Florence, Tuscany, Italy Serpentinised coarse peridotite, and clear milky and fibrous serpentine veins. Various microstructures of alteration and exsolution in pyroxene visible on the slab surface. Note opaque white ?quartz veins and a few small calcite veins.
590stone 590 Verde di Prato, from Prato, Florence, Tuscany, Italy Serpentinised peridotite (lherzolite) - coarse-grained, former olivine, orthopyroxene and clinopyroxene are still evident.
611stone 611 Verde duro di Massa e Carrara, most probably from the Apuan Alps of Italy Coarse-grained diorite.
702stone 702 Verde plasma di Corsica, from near Orezza, Monte San Petrone, Haute-Corse, Corsica, France Metagabbro, the diopside and actinolite-tremolite both coloured bright green by trace chromium.
577stone 577 Verde ragano dell'Elba, from the island of Elba, Livorno, Tuscany, Italy Serpentinised peridotite with clear dextral shear fabric and augen up to a centimetre across.
578stone 578 Verde ranocchia, from Wadi Umm Esh, Eastern Desert, Egypt Serpentinite; a metamorphosed gabbro; most probably the Wadi Umm Esh/Atalla serpentinite.
582stone 582 Verde tenero di Corsica, from Corsica, France Fine-grained quartz (chalcedony) rock, perhaps with relic textures of a granitic rock. Dendritic goethite emanates from the many fractures.
252stone 252 Verdesino della Giazza, from Giazza, Verona, Veneto, Italy Fine-grained bioturbated limestone crowded with bioclasts, mostly thin-shelled bivalves.
291stone 291 A hybrid of mischio scuro di Lugo/lumachella di San Vitale and astracane di Verona, from Lugo di Grezzana, Val Pantena, Verona, Veneto, Italy Limestone; a fossiliferous micrite parts of the specimen rich in bivalve fragments, and other parts containing elongate spar-filled sections of the the lower Jurassic 'Lithiotis' bivalve. It is crossed by a thick calcite-filled vein.
968stone 968 almost certainly breccia del Taigeto, breccia verde di Sparta, from the area of Krokees (Levetsova), Laconia, Peloponnese, Greece Synsedimentary breccio-conglomerate with clasts of porphyritic andesite.
4stone 4 almost certainly Proconnesian marble, marmo di Proconneso, from the island of Marmara, Balıkesir, Turkey Coarse-grained calcite marble with grey graphite-bearing banding.
742stone 742 almost certainly quarzo di Monterufoli, from Monterufoli, near Pomarance, Pisa, Tuscany, Italy Brecciated banded crystalline slightly smoky-amethystine quartz with some included euhedral black crystals, and aligned white 'feathers' of bubble inclusions. The reddish-brown bands are artificial filler in fracture cavities.
368stone 368 almost certainly Travertino di Civitavecchia, from Civitavecchia, Lazio, Italy Calcite travertine deposit, with algal(probably cyanobacterial) laminites. Coloured bands are tinted by hematite (red) and goethite (yellow).
604stone 604 almost certainly verde di Prato, from Prato, Florence, Tuscany, Italy Serpentinised coarse peridotite with very dark olivine domains. Note the reticulated distribution of Fe/Cr oxides, and presence of some pale acicular inclusions.
919stone 919 almost certainly Vytina black, from Vytina, Arcadia, Peloponnese, Greece Fine-grained black limestone with white fragments of rudist bivalves; Cretaceous age.
920stone 920 almost certainly Vytina black, from Vytina, Arcadia, Peloponnese, Greece Fine-grained black limestone with white shells of rudist bivalves; Cretaceous age.
542stone 542 Fluorite, from Crich, Derbyshire, England Hydrothermal vein deposit of colourless/iron-stained fluorite, in places showing zoning with inclusions of pyrite/marcasite. It also contains sparse euhedral crystals of sphalerite.
551stone 551 Fluorite, probably from Italy Banded colourless fluorite with inclusions of pyrite, and ?clay.
830stone 830 just possibly granito nero, from between Aswan and Shellal District, Nile Valley, Egypt Fine-grained hornblende biotite granodiorite; just possibly a variety of the Aswan granodiorite from the Precambrian basement rocks.
975stone 975 most probably breccia Medici di Siena, from Siena, Tuscany, Italy Fine-grained calcite marble breccia; a sheared and metamorphosed limestone breccia.
233stone 233 Most probably Chiampo, from Vicenza or Venezia, Veneto, Italy Fossiliferous microsparite limestone with bivalves and abundant large and small benthic foraminifera. It has limestone intraclasts, calcite-filled veins, and stylolites coloured by red filler or polishing compound.
131stone 131 most probably giallo e nero di Carrara, from Carrara, Massa e Carrara, Tuscany, Italy Black weakly metamorphosed fine-grained limestone with at least two generations of veining the first of white calcite and the second of yellow calcite coloured by goethite (iron hydroxide).
132stone 132 most probably giallo e nero di Carrara, from Carrara, Massa e Carrara, Tuscany, Italy Finely brecciated weakly metamorphosed fine-grained limestone with veins of saccharoidal to fibrous calcite; some veins and stylolites coloured yellow by included goethite.
136stone 136 most probably giallo e nero di Carrara, from Carrara, Massa e Carrara, Tuscany, Italy Very poorly sorted breccia of black fine-grained weakly metamorphosed limestone in a white calcareous matrix; most of the stone is one larger clast which is crossed with white and ferruginous yellow veins. Note the yellow stylolites and stylolitic clast boundary.
814stone 814 most probably granito nero, from between Aswan and Shellal District, Nile Valley, Egypt Biotite granodiorite; probably a variety of the Aswan granodiorite from the Precambrian basement rocks.
796stone 796 most probably Lapis Iaracites, porfido verde Egiziano, from Gebel Dokhan, Eastern Desert, Egypt Andesite-dacite porphyry of white plagioclase phenocrysts in a grey-black groundmass. Very minor epidotisation of the plagioclase.
3stone 3 most probably Pentelic marble, marmo Pentelico, from Mt Pentéli, Attica, Greece Fine-grained calcite marble.
7stone 7 most probably Thasian marble, marmo Thaso, from Cape Vathy, Thasos (Thassos), East Macedonia and Thrace, Greece Medium-grained dolomite marble.
706stone 706 Orthoclase 'adularia', from the Alps; probably from St Gotthard, Ticino, Switzerland Adularia, a variety of orthoclase feldspar.
834stone 834 perhaps africano, from Locality unknown; if africano, then from Sigacik (ancient Teos), Izmir Province, Turkey A metamorphosed breccia of dark dolomitic? limestone containing bioclasts such as forams, echinoderm spines and perhaps crinoid ossicles. There are also scattered pyrite crystals and some reddish intraclasts. The matrix is coarsely crystalline pink calcite. There is some chlorite development around clasts. Note the iron-stained calcite-filled fracture.
91stone 91 perhaps bardiglio, from Carrara, Massa e Carrara, Tuscany, Italy; or cipollino, from Carystos, Euboea, Central Greece Fine-grained carbonate mylonite, a heavily sheared carbonate rock. The slab face is cut parallel to the dextral movement direction.
910stone 910 perhaps breccia corallina, from Verzirhan, Bilecik,Turkey Heavily sheared and recrystallised limestone breccia, almost entirely altered to fine-grained marble.
98stone 98 Perhaps Campan vert from Espiadet, Campan valley, Haute Pyrénées, France, but it may be cipollino Apuano from Alta Versilia, Tuscany, Italy; or another cipollino Impure altered limestone or calcite marble with convoluted white calcite ‘veins’; sheared, with anastomising cream-coloured shear bands. The green coloration is predominantly green-grey granular to prismatic diopside/actinolite.
472stone 472 perhaps Chiampo, from Ponte Salaro, near Rome is doubtful; this is more likely to be from the area of Chiampo, in Vicenza. Limestone; a foraminiferal ruddite with abundant nummulites and other benthic forams, algal grains, mollusc fragments and limestone intraclasts. It has extensive solution of grain boundaries, creamy micritic cement containing microfossils. Extensive use has been made of an orange filler.
894stone 894 Possibly granito di Corsica from Corsica, France, but more probably bianco Montorfano, from Montorfano, Novara, Piedmont, Italy Coarse hornblende biotite granite with accessory apatite and titanite.
829stone 829 possibly granito nero, from between Aswan and Shellal District, Nile Valley, Egypt Biotite granodiorite with some alteration to chlorite; possibly a variety of the Aswan granodiorite from the Precambrian basement rocks.
909stone 909 probably Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Sheared, recrystallised limestone breccia with some relic crinoid debris and abundant stylolites.
446stone 446 probably breccia di Carrara, from Carrara, Massa e Carrara, Tuscany, Italy; or breccia di Seravezza, from Seravezza, Lucca, Tuscany, Italy Marble breccia: a limestone breccio-conglomerate that has subsequently been metamorphosed.
416stone 416 Probably breccia di Sciro from Skyros, Sporades, Central Greece A nodular or conglomeratic limestone, sheared and metamorphosed to a marble breccia, with extensive clay-rich hematitic matrix and deformed calcite veins. Note extensive late-stage solution seamed stylolite development.
461stone 461 probably diaspro tenero di Sicilia, from Sicily, Italy; but may be breccia d'Arzo, from Ticino, Switzerland. Polymict limestone breccia with variable amounts of orange iron-staining of micritic matrix.
933stone 933 probably Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. Compact banded travertine composed of fairly coarse-grained calcite, extensively iron-stained and with red ferruginous veins.
492stone 492 probably Gialletto di Torri del Benaco, from Torri del Benaco, Verona, Veneto, Italy Debris-flow deposit of limestone intraclasts in fossiliferous micritic matrix. Clay-coated stylolites are conspicuous.
902stone 902 Probably giallo antico from Chemtou, Tunisia, but possibly Giallo di Siena, Siena yellow from Monte Arrenti near Sovicille, Siena, Tuscany, Italy Very fine-grained calcite marble. A fractured, stylolitised, metamorphosed fossiliferous biomicrite limestone. Veins and voids are calcite-filled, and there are abundant small black manganese oxide dendrites.
876stone 876 probably granito nero, from between Aswan and Shellal District, Nile Valley, Egypt Amphibole-rich granodiorite-tonalite with megacrysts of plagioclase, and accessory titanite. There is some alignment of megacrysts giving faint foliation.
838stone 838 probably granito Sardo, from Capo Testa, Olbia-Tempio, Sardinia, Italy; but possibly granito rosso antico, from between Aswan and Shellal District, Nile Valley, Egypt A medium-grained granite with pink potash feldspar, biotite and quartz.
493stone 493 Probably mandolato di Grezzana, nembro rosato; from Grezzana, Verona, Veneto, Italy Pelagic limestone. A burrowed nodular fossiliferous micritic limestone with stylolites and solution seams, most probably of Upper Jurassic age, from the upper part of the Rosso Ammonitico Formation.
912stone 912 probably marmo Greco scritto, probably from Capo de Garde, Annaba (Hippo Regius), Algeria. A tectonised calcite marble, with fine and medium-grained graphite-rich bands; perhaps originally a marble breccia.
73stone 73 probably marmo nero di Roverè, perhaps from Prun, but more likely Roverè di Velo, Verona, Veneto, Italy Bituminous bioclastic limestone. The sides of the specimen show it has a distinctly laminar texture.
247stone 247 probably Pietra Rosone di Trapani, from Trapani, Sicily, Italy Limestone. Calcareous algal 'reef' with benthic foraminifera and bryozoans. It has solution-modified clay seams/solution seams.
789stone 789 probably porfido Trentino, from the Alps, and probably from the area of Bolzano, Trentino-Alto Adige, Italy Porphyritic rhyolite or dacite with phenocrysts of quartz, feldspar and biotite.
755stone 755 probably Sicilian jasper, diaspro di Sicilia, from Sicily, Italy Jasper - a silicified ferruginous limestone, with agate-filled voids and patches of creamy white crystalline calcite. Goethite forms spherular inclusions in orange jasper.
711stone 711 Quartz 'rock crystal', from Madagascar Part of a large single crystal of rock crystal, the colourless variety of quartz. Some gas inclusions are evident along internal crystal planes.
870stone 870 Sandstone, from the Alps A quartz sandstone with abundant mafic mineral grains, scattered large forams and other shell fragments, and some calcareous grains/cement.
334stone 334 very probably alabastro di Volterra, from Volterra, Pisa, Tuscany, Italy Banded compact travertine composed of very fine fibrous crystals of calcite embedding scattered fragments of a pure white travertine.
246stone 246 Lumachella di Lipari’; locality unknown. Not from the Lipari islands, Messina, Sicily, Italy. Fine-grained limestone crowded with largely spar-replaced bivalve shells and fragments. There are no igneous grains.
52stone 52 Marmo carnagione d'Asti’; probably from Italy, but Asti, in Piedmont, is very doubtful. Limestone from the Upper Cretaceous Scaglia Rossa Formation. A bioturbated biomicrite with planktonic forams and abundant tiny bioclasts.
6stone 6 Marmo Lesbio’, most probably Thasian marble, marmo Thaso, from Cape Vathy, Thasos (Thassos), East Macedonia an Coarse-grained calcite or dolomite marble.
68stone 68 Marmo rosso di Taormina’; Taormina in Sicily is very doubtful. Possibly from the Apennines, Italy. Pink pelagic limestone, most probably from the Scaglia Rossa Formation (Cretaceous-Tertiary). A bioturbated fossiliferous biomicrite crowded with planktonic forams and calcispheres.
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