Corsi Collection of Decorative Stones

Page 1 of 4, showing 1 - 100 of 326 stones.
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OUMNH number Name and quarry location Geological description
OUMNH number Name and quarry location Geological description
433stone 433 'Breccia di Brentonega di Dolce nel Veronese', from Dolce, Verona, Veneto, Italy, or from Brentónico, Trentino, Trentino-Alto Adige, Italy Jurassic ?syn-sedimentary breccia with micritic limestone clasts, sparry matrix, stylolites and spar-filled voids.
483stone 483 'Breccia traccagnina di Giazza', locality unknown; possibly the Verona area, Veneto, Italy Polymict limestone breccia-conglomerate with solution modified clast boudaries.
976stone 976 'Diaspro d'Egitto', locality unknown Breccia of green iron-rich prase/aventurine? fragments in a chalcedony matrix. Abundant ferruginous ‘debris’ is in places altered to orange goethitic and red hematitic spherules. A broad colourless chalcedony vein traverses specimen.
752stone 752 'Diaspro delle Alpi', from the Alps (not confirmed) Breccia of white granular quartz and other clasts, many rimmed with muscovite, in a red ferruginous quartz matrix. Some fractures are filled with calcareous cemented sandstone. The whole rock is sheared and folded.
44stone 44 'Marmo giallo di Sentro', perhaps from Centro Tregnago, Verona, Veneto, Italy Brecciated fine-grained limestone with calcite-filled fractures; heavily stylolitised.
500stone 500 'Persichino di Romegiano', from Domegiano or Romagnano, Verona, Veneto, Italy Fossiliferous micritic limestone with debris probably of bivalves.
83stone 83 'Portasanta', locality unknown Pink and grey coarse-grained marble; a metamorphosed limestone breccia with sutured clast boundaries and yellowish stylolites.
907stone 907 'Portasanta', locality unknown Sheared limestone/marble breccia with extensive stylolite development.
683stone 683 'Traccagnina delle Alpi', perhaps from the province of Verona, Italy Breccia-conglomerate of sub-angular to rounded limestone, dolostone and occasional quartz clasts in a ferruginous sparite matrix. Clasts show extensive fracturing.
101stone 101 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia-conglomerate of poorly sorted limestone clasts in a chlorite-bearing greenish matrix. It has calcite-filled veins, and crinoids and other fossil debris within the clasts.
102stone 102 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia-conglomerate of poorly sorted mixed limestone and green Fe-silicate bearing clasts in a variably iron-stained micritic matrix .
103stone 103 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia-conglomerate of poorly sorted limestone and limestone breccia clasts in a green chlorite/epidote-rich matrix, but with some characteristic black matrix also evident.
104stone 104 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia or conglomerate; this specimen is cut almost entirely from a single pink somewhat fractured clast which has abundant stylolites. Small areas of black matrix are evident.
105stone 105 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia or conglomerate of small limestone clasts in a black matrix.
106stone 106 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia or conglomerate of poorly sorted mixed limestone clasts in a green chlorite-rich matrix.
107stone 107 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia or conglomerate of poorly sorted limestone clasts in a black matrix. This specimen is crossed by white quartz veins.
108stone 108 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia or conglomerate of poorly sorted mixed limestone clasts in a green chlorite-rich matrix.
109stone 109 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia of poorly sorted mixed limestone clasts, some green and chlorite-rich, in a grey matrix.
110stone 110 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia of poorly sorted limestone clasts, with stylolites and calcite-filled fractures
111stone 111 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia with abundant crinoid and other fossil debris, in a dark grey matrix. The specimen is crossed by a white calcite vein.
112stone 112 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia or conglomerate of poorly sorted limestone clasts which have been partially oxidised.
113stone 113 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia or conglomerate of poorly sorted chlorite-rich limestone clasts, some with stylotised clast boundaries.
114stone 114 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia or conglomerate of poorly sorted limestone clasts. Note stylolites.
115stone 115 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia of pink somewhat fractured clasts in a black matrix. Note the calcite-filled vein following the clast margin.
116stone 116 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia with abundant crinoid and other fossil debris, in a dark grey, partly oxidised to brown, matrix.
117stone 117 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Cretaceous tectonic breccia or conglomerate of small limestone clasts in a chlorite-rich matrix crossed by stylolites.
913stone 913 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Tectonic breccia-conglomerate of poorly-sorted grey-brown biospar limestone clasts in a microspar matrix rich in red, brown and yellow ferruginous matter (oxidised chlorite). The same colours abundant stylolites. Cavities are filled with sparry calcite.
914stone 914 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Tectonic breccia-conglomerate of poorly-sorted largely recrystallised limestone clasts in a sparry calcite matrix coloured dark brown by included ferruginous matter (oxidised chlorite). It has abundant stylolites, some are white, other iron-stained orange-brown. Fractures are filled with calcite.
915stone 915 Africano, from Sigacik (ancient Teos), Izmir Province, Turkey Tectonic breccia-conglomerate of poorly-sorted limestone and metamorphic clasts, the latter rich in green iron silicates. The matrix is green, chlorite-rich.
730stone 730 Agata del San Stefano, from Santo Stefano Quisquina, Agrigento Sicily, Italy; or more probably quarzo di Monterufoli, from Monterufoli, near Pomarance, Pisa, Tuscany, Italy Brecciated agate, colourless crystalline quartz cement with spherular limonitic inclusions. Agate-lined quartz-filled fractures.
303stone 303 Alabastro a occhi, locality unknown Brecciated fine-grained compact banded travertine, with acicular and granular bands of calcite, some dark orange-brown coloured.
330stone 330 Alabastro a pecorella, from Aïn Tekbalet district, Oran, Algeria. This appears to be a recrystallised brecciated compact banded travertine, composed of medium and coarse-grained granular calcite. It is coloured red by disseminated hematite.
936stone 936 Alabastro antico, locality unknown Limestone breccia. Calcite travertine clasts, and a few gastropod shells, in a micritic (peloidal in places) matrix.
371stone 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 .
301stone 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.
514stone 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.
156stone 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.
157stone 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.
153stone 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.
677stone 677 Basalte di Venezia, from Venice, Veneto, Italy 'Greenstone' - a brecciated metabasaltic tuff with calcite veins. Some clasts show weak graded bedding.
129stone 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.
951stone 951 Breccia bigia, locality unknown Well-sorted polymict limestone conglomerate.
399stone 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.
404stone 404 Breccia corallina, from Verzirhan, Bilecik,Turkey Limestone breccia with extensive solution-modified stylolitic clast contacts, and calcite-filled fractures/veins.
944stone 944 Breccia corallina, from Verzirhan, Bilecik,Turkey Weakly metamorphosed limestone breccia with stylolitised clast boundaries, and with small cavities filled with sparry calcite.
950stone 950 Breccia corallina, from Verzirhan, Bilecik,Turkey Tectonic brecciated limestone breccia, heavily fractured with stylolites and solution-modified clast boundaries.
207stone 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.
460stone 460 Breccia de'Colli Euganei, probably from Verona or Vicenza regions, Veneto Italy Brecciated limestone with pervasive stylolites.
468stone 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.
469stone 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.
470stone 470 Breccia degli Appennini, from Apennines, Italy Bioturbated fossiliferous biomicrite limestone. A packstone (grain-supported, the bioclasts in contact). It has fractures and stylolites.
489stone 489 Breccia degli Appennini, from the Apennines, Italy Deformed granitoid; porphyroblasts are quartz dominantly, perhaps originally vein quartz, now disrupted.
496stone 496 Breccia degli Appennini, from the Apennines, Italy Debris flow; containing poorly sorted matrix-supported white limestone and other intraclasts in a pink limestone matrix. Sample has calcite-filled fractures.
452stone 452 Breccia del Giannicolo, from Rome, Lazio, Italy Limestone breccio-conglomerate, very poorly sorted; the matrix is clear crystalline calcite in places, elsewhere full of microfauna-rich grains.
453stone 453 Breccia del Giannicolo, from Rome, Lazio, Italy Poorly sorted limestone conglomerate with extensive styolitic suturing of clast boundaries. The matrix is micritic with less forams than no. 454. It has some spar-cemented intraclasts and a few dark grey clasts. Some dendritic manganese oxides are evident on the sides of the specimen.
454stone 454 Breccia del Giannicolo, from Rome, Lazio, Italy Poorly sorted limestone conglomerate with extensive styolitic suturing of clast boundaries. The matrix is micritic with abundant forams. Yellow areas are filler.
441stone 441 Breccia del lago di Como, from Lake Como, Como, Lombardy, Italy Peloidal limestone breccia. The matrix is pale brown transparent calcite, as compact banded travertine in places. Note extensive brown filler/polishing compound.
447stone 447 Breccia del Lago di Garda, from Lake Garda, and perhaps from Brentónico, Trentino, Trentino-Alto Adige, Italy Limestone; a burrowed nodular biomicrite crowded with skeletal grains, with extersitu stylolite development. Dark brown area is filler.
466stone 466 Breccia del Largo di Garda, from Lake Garda, Lombardy, Italy Rosso ammonitico Middle-Upper Jurassic nodular pelagic limestone.
450stone 450 Breccia della Gaetta, from Gaetta (Gaeta), Lake Como, Como, Lombardy, Italy Limestone breccio-conglomerate in pink limestone matrix.
421stone 421 Breccia della villa Adriana, breccia Quintilina, most probably from Levanto, Liguria, Italy Serpentinite breccia.
408stone 408 Breccia della Villa Casali, locality unknown Polymict limestone conglomerate. Note complex sutured solution-modified clast contacts. Contains shell fragments among clasts.
686stone 686 Breccia delle Alpi, from the Alps Poorly sorted quartz/quartzite conglomerate with subsidiary lithic clasts. It is silicified, note clay matrix and quartz veins.
688stone 688 Breccia delle Alpi, from the Alps Polymict conglomerate with clasts of quartz, chert and silicified limestone. There is extensive intergrowth suturing about some marble/limestone clasts.
689stone 689 Breccia delle Alpi, from the Alps Polymict conglomerate with clasts of quartz, chert and silicified limestone.
687stone 687 Breccia delle Alpi, from the Alps; or perhaps Breccia di Seravezza, from Seravezza, Lucca, Tuscany, Italy Lithic breccio-conglomerate with clasts of dolomitic marble, schist, and other predominantly metamorphic rocks.
684stone 684 Breccia delle Alpi, possibly from the Apuan Alps, Italy Polymict conglomerate; most clasts are silicified red limestone and rock crystal, a small proportion are calcareous or dolomitic. It is possibly from the Triassic Verrucano Formation.
685stone 685 Breccia delle Alpi, possibly from the Apuan Alps, Italy Lithic breccio-conglomerate with mainly siliceous clasts including quartz grains, but some of limestone and marble are also present. It is possibly from the Triassic Verrucano Formation.
394stone 394 Breccia di Aleppo, from Island of Chíos, North Aegean, Greece Polymict limestone conglomerate with solution-modified clast boundaries and stylolites.
426stone 426 Breccia di Arbe, breccia a semesanto di Dalmazia, from Island of Rab, Primorje-Gorski, Croatia Polymict conglomerate of limestone clasts.
425stone 425 Breccia di Bologna, from Bologna, Emilia-Romagna, Italy Polymict conglomerate with microspar matrix. Clasts are predominantly of limestone; some are a jasper-like pseudobreccia in appearance.
438stone 438 Breccia di Brescia, from Brescia, Lombardy, Italy Limestone breccia.
449stone 449 Breccia di Brianza, from the area of Brianza , Lombardy, Italy Fine-grained limestone conglomerate. Clasts include ooliths and various beige, cream and white limestones, in a sparry calcite matrix.
456stone 456 Breccia di Cango, from Cango, Milan, Lombardy, Italy Brecciated marble.
435stone 435 Breccia di Canneto, from Canneto, Tuscany, Italy Breccia of grey micritic limestone clasts showing 'paesination' (microfracture constrained iron-staining like that of pietra paesina, q.v.)
495stone 495 Breccia di Carrara, from Carrara, Massa e Carrara, Tuscany, Italy Marble breccia-conglomerate
487stone 487 Breccia di Casale, from Casale, Verona, Veneto, Italy Bioclastic limestone with large benthic foraminifera.
410stone 410 Breccia di Casteldaccia, from Calvario, near Casteldaccia, Palermo, Sicily Polymict limestone conglomerate with pervasive sutured solution-modified clast boundaries.
462stone 462 Breccia di Cori, from Cori, Latina, Lazio, Italy Intraformational limestone breccia of peloidal limestone (fragments of Triassic-Jurassic limestones) in pink Jurassic-Cretaceous pelagic limestone matrix.
451stone 451 Breccia di Lugano, from Lake Lugano, Varese, Lombardy, Italy Slumped (or sheared) limestone/marble breccia, with red and metallic grey hematite, and flecks of green chlorite and yellow-brown goethite.
442stone 442 Breccia di Mastro Simone, from S.Angelo Romano, Roma, Lazio, Italy Limestone; a burrowed nodular biopel-micrite, perhaps from the Jurassic Rosso ammonitico formation.
525stone 525 Breccia di Modena, from Modena, Emilia-Romagna, Italy Micrite/microsparite limestone with abundant bioclasts, extensively fractured and stylolitised. Dendritic iron and manganese oxides are developed along stylolites.
526stone 526 Breccia di Modena, from Modena, Emilia-Romagna, Italy Micrite/microsparite limestone with abundant bioclasts, extensively bioturbated, fractured and stylolitised. Dendritic iron and manganese oxides are developed along stylolites.
473stone 473 Breccia di Monsumano, from Monsummano Terme, Pistoia, Tuscany, Italy Slumped/sheared limestone breccia with calcite-filled fractures and with small amounts of manganese oxides as dendrites and stylolites.
494stone 494 Breccia di Napoli, from Naples, Campania, Italy Micritic limestone with pale grey dolomite nodules; calcite-filled fractures, and disseminated dendritic pyrolusite. Brown is filler.
695stone 695 Breccia di Perugia, from Perugia, Umbria, Italy Polymict conglomerate with predominantly limestone clasts. Note sutured/styloliitised clast boundaries. Common larger benthic forams, scarcer calcareous algae. Creamy-yellow micritic matrix with microfossils.
486stone 486 Breccia di Pistoja, from Pistoia, Tuscany, Italy Fractured, solution-modified, polymict limestone conglomerate. The micritic matrix contains large benthic forams. The sample has calcite-filled fractures and some dendritic pyrolusite in both clasts and matrix .
471stone 471 Breccia di Ponte Salaro, from Ponte Salaro, near. Rome, Lazio, Italy Polymict limestone conglomerate with abundant nummulites, molluscan and other skeletal debris. It is extensively stylolitised. The micritic matrix has a rich microfauna. It has large areas of yellowish filler and brown areas around clasts are also filler.
476stone 476 Breccia di Prato, from Prato, Florence, Tuscany, Italy (unlikely) Poorly sorted polymict limestone breccia with many fossiliferous clasts. Clasts have green chloritic rims.
692stone 692 Breccia di Roma, from Rome, Lazio, Italy Polymict conglomerate of diverse limestones and minor chert/chalcedony clasts, fairly well sorted and elongate with some alignment. Matrix is extensively spotted with Fe/Mn, with dendrites around rims of some clasts.
693stone 693 Breccia di Roma, from Rome, Lazio, Italy Polymict conglomerate with extensively fractured clasts. These are predominantly limestone; a few are red in colour. Some show 'paesination' - microfracture constrained patterns of ironstaining like pietra paesina, and these also have a rich microfauna. The matrix is calcarenite.
694stone 694 Breccia di Roma, from Rome, Lazio, Italy Polymict conglomerate of predominantly limestone pebbles, with abundant green silicate grains in matrix. Green silicate grains are subhedral-euhedral crystals Well-rounded clasts have heavily altered rims. Matrix is white micrite/microcrystalline calcite. Note brown is filler.
696stone 696 Breccia di Roma, from Rome, Lazio, Italy Calcarenite-polymict limestone conglomerate with clear spar matrix. Some darker grains are ?volcanic??, some is dendritic Mn; but also some is brown filler.
697stone 697 Breccia di Roma, from Rome, Lazio, Italy Polymict conglomerate. Clasts are predominantly limestone, but some are dolomitic and some siliceous. The matrix is calcarenite. Some brown is goethite, but some is filler/polishing compound.
490stone 490 Breccia di Sarzana, from Sarzana, near Seravezza, Lucca, Tuscany, Italy; or perhaps breccia di Seravezza, from Seravezza, Lucca, Tuscany, Italy Marble breccia; a metamorphosed polymict limestone breccia with extensive solution seams.
491stone 491 Breccia di Sarzana, from Sarzana, near Seravezza, Lucca, Tuscany, Italy; or perhaps breccia di Seravezza, from Seravezza, Lucca, Tuscany, Italy Marble breccia with calcite filled fractures.
478stone 478 Breccia di Sciro, from Isle of Skyros, Sporades, Central Greece Sheared polymict marble breccia
479stone 479 Breccia di Seravezza from Seravezza, Lucca, Tuscany, Italy; or breccia di Siena, from Siena, Tuscany, Italy Sheared breccia of calcite marble clasts; ferruginous staining gives yellow colouration.
477stone 477 Breccia di Seravezza, from Seravezza, Lucca, Tuscany, Italy Breccia of calcite marble clasts.
432stone 432 Breccia di Seravezza, from Seravezza; or perhaps breccia Medicea, from nearby Stazzema, Lucca, Tuscany, Italy Fine-grained calcite marble breccia.
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