Corsi Collection of Decorative Stones

Page 3 of 10, showing 201 - 300 of 1000 stones.
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OUMNH number Name and quarry location Geological description
OUMNH number Name and quarry location Geological description
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.
406stone 406 Breccia di Settebasi fiorito, from Isle of Skyros, Sporades, Central Greece Sheared breccia of fine-grained calcite marble clasts in a hematitic calcareous matrix.
405stone 405 Breccia di Settebasi, from Isle of Skyros, Sporades, Central Greece Sheared fine-grained calcite marble breccia.
947stone 947 Breccia di Settebasi, from Isle of Skyros, Sporades, Central Greece Sheared limestone conglomerate, metamorphosed to marble.
690stone 690 Breccia di Sicilia, from Sicily, Italy Conglomerate, with igneous clasts showing altered margins, in limestone matrix with well-preserved microfauna.
952stone 952 Breccia di Siena, from Siena, Tuscany, Italy Sheared polymict limestone conglomerate. The shearing may have been synsedimentary: Solution seams and stylolites are pervasive. Perhaps a sheared debris flow.
474stone 474 breccia di Taormina, from Taormina, Messina, Sicily, Italy; or perhaps breccia della Villa Casali, locality unknown Polymict breccia of limestone clasts in red micritic matrix.
427stone 427 Breccia di Terni, from Terni, Umbria, Italy Polymict limestone conglomerate, clasts mainly of pink or creamy white pelagic limestone, some rimmed with dendritic manganese oxides. It also contains clasts of coarsely crystalline white calcite.
467stone 467 Breccia di Tivoli, from Tivoli, Lazio, Italy Black limestone breccia with white limestone matrix.
691stone 691 Breccia di Torrita, from Torrita Tiberina, near Rome, Lazio, Italy Polymict conglomerate of limestone pebbles, bordering on compact calcite travertine. The cement is calcarenite. There is extensive brown filler.
480stone 480 Breccia di Val di Radi, breccia di Siena, from Valle di Radi, Siena, Tuscany, Italy Sheared micritic limestone with plastic deformation features, weakly metamorphosed.
434stone 434 Breccia dorata, from Montagnola Senese, Siena, Tuscany, Italy Breccia of fine-grained recrystallised limestone (probably weakly metamorphosed) clasts, closely packed, with minimal red calcareous matrix. Pink colour is leached, not present in rims of larger clasts and all the smaller clasts. It has stylolites, stylolitised clast boundaries, and a few sparry calcite-filled cavities.
411stone 411 Breccia dorata, from Siena, Tuscany, Italy Limestone breccia/conglomerate with pervasive suturing and solution-modification of clast boundaries.
412stone 412 Breccia dorata, from Siena, Tuscany, Italy Limestone breccia with solution-modified fractures
680stone 680 Breccia frutticolosa, from Bourdeau, Savoie, France Conglomerate of diverse limestone clasts. Clasts have been burrowed by marine bivalves. Matrix is calcareous sandstone with ferromagnesium silicate grains of volcanic origin.
419stone 419 Breccia gialla e nera, from Portovenere, La Spezia, Liguria, Italy Black and grey limestone conglomerate, with a yellow ferruginous calcite matrix.
413stone 413 Breccia gialla, locality unknown Polymict limestone breccia/conglomerate.
949stone 949 Breccia Medicea or 'Africano', from Seravezza, Lucca, Tuscany, Italy Tectonised polymict breccia-conglomerate of limestone and marble clasts with solution-modified clast contacts.
945stone 945 Breccia pavonazza bruna o dal suffragio, locality unknown Polymict breccia-conglomerate. Smaller clasts in matrix are realatively rounded and ferruginous reddish-brown, and all clasts are have ferruginous mainly stylolitic clast boundaries Voids are filled with sparry calcite. A few clasts contain bright green, 'fushsite' (chromium-bearing muscovite).
417stone 417 Breccia pavonazza, locality unknown Polymict limestone/marble breccia-conglomerate with red, calcareous mudstone/lateritic matrix, and stylolites. Some residual fossils appear to be present.
431stone 431 Breccia pavonazzetto, from Iscehisar (Synnada), Afyonkarahisar Province, Turkey Marble breccia; a heavily stylolitised, metamorphosed polymict limestone conglomerate, probably resedimented.
953stone 953 Breccia persichina, perhaps breccia Medicea, from Stazzema or Seravezza, Lucca, Tuscany, Italy Sheared, metamorphosed solution-modified limestone with stylolites, not entirely recrystallised to marble, fossils are still widely evident.
485stone 485 breccia rossa Appenninica, from between Biassa and Pegazzano, La Spezia, Liguria, Italy Burrowed stylolitised nodular limestone which has been tectonically modified.
439stone 439 Breccia rossa di Trapani, rosso di Castellammare, from Castellammare, Trapani, Sicily, Italy Jurassic-Cretaceous burrowed red, nodular micritic pelagic limestone with abundant thin-shelled bivalve (Bositra) debris. Note solution seams.
943stone 943 Breccia rossa, locality unknown Metamorphosed (tectonised) limestone breccia with calcite/hematite-filled fractures, solution seams and stylolites.
482stone 482 Breccia traccagnina di Monte Gargano, from Monte Gargano promontory, Foggia, Puglia, Italy Polymict limestone conglomerate with limestone matrix. It has stylolitised, solution-modified contacts between clasts.
481stone 481 Breccia traccagnina di Vitulano, from Vitulano, Benevento, Campania, Italy Polymict predominantly limestone conglomerate.
402stone 402 Breccia traccagnina, breccia Capitolina, locality unknown Polymict limestone conglomerate.
946stone 946 Breccia traccagnina, breccia Capitolina, locality unknown Polymict limestone conglomerate.
403stone 403 Breccia traccagnina, brecha da Arrábida, from Siera di Arrábida, Setúbal, Portugal Polymict limestone conglomerate
395stone 395 Breccia traccagnina, locality unknown Polymict limestone and dolomite conglomerate with solution-modified clast boundaries and stylolites.
396stone 396 Breccia traccagnina, locality unknown Polymict limestone conglomerate with solution-modified sutured clast boundaries and stylolites.
397stone 397 Breccia traccagnina, locality unknown Polymict limestone, and dolomite breccia/conglomerate, heavily fractured with sutured, solution-modified clast boundaries and stylolites.
398stone 398 Breccia traccagnina, locality unknown Polymict limestone conglomerate.
400stone 400 Breccia traccagnina, locality unknown Polymict limestone conglomerate; heavily altered clast boundaries
401stone 401 Breccia traccagnina, locality unknown Polymict limestone conglomerate - perhaps a debris flow.
679stone 679 Breccia verde d'Egitto, Breccia universale, from Wadi Hammamat, Eastern Desert, Egypt Metaconglomerate of metamorphic and igneous clasts (banded tuff, serpentinite, etc) in a sheared chloritised or epidotised matrix. Note that granitic clasts commonly also occcur in this stone, see 969.
969stone 969 Breccia verde d'Egitto, breccia universale, from Wadi Hammamat, Eastern Desert, Egypt Metaconglomerate of metamorphic and igneous clasts (pink granite, banded tuff, serpentinite etc) in an epidotised matrix containing chlorite and abundant quartz grains. Cf no.679.
415stone 415 Breccia, locality unknown Polymict limestone conglomerate. Matrix is a fossiliferous micrite with minor dendritic Mn-oxides. Some clasts have goethitic rims. Note calcite-filled voids and calcite-filled fractures. Red areas are filler/polishing compound.
209stone 209 Broccatello di Camerino, from Camerino, Macerata, Marches, Italy Cretaceous-Eocene pelagic limestone, probably from the Scaglia Rossa Formation of the Apennines. A burrowed pink biomicrite with planktonic forams and calcispheres, cut by a sparry calcite and geopetal sediment-filled synsedimentary void, and by calcite-filled fractures.
283stone 283 Broccatello di Casale, from Casale, Verona, Veneto, Italy Fossiliferous limestone containing large benthic forams, calcareous algae, coral fragments etc, and cut by stylolitized fractures.
464stone 464 Broccatello di Malcesine, nembro rosato, from Malcesine, Lake Garda, Verona, Veneto, Italy Upper Jurassic limestone; a burrowed nodular biomicrite crowded with skeletal grains but microbreccia-conglomerate in places. Note the extersitu stylolite development.
443stone 443 Broccatello di Maran, from Maran, Verona, Italy Rosso ammonitico Jurassic pelagic limestone. It is a heavily stylolitised pebbly fossiliferous micrite, either an intraformational conglomerate or a debris-flow.
459stone 459 Broccatello di Milano, from Milan, Lombardy, Italy Polymict limestone conglomerate with sutured/stylolized grain boundaries, very poorly sorted, matrix largely calcarenite.
463stone 463 Broccatello di Olorgie, from Olorgie, Verona, Veneto, Italy Rosso ammonitico Jurassic nodular pelagic limestone.
521stone 521 Broccatello di Sentro, from the Verona area, Veneto, Italy. 'Sentro' is perhaps Centro. Brecciated limestone containing scattered yellow euhedral rhombs of calcite, and dendritic manganese oxides.
37stone 37 Broccatello di Siena, convent Siena, from Monte Arrenti near Sovicille, Siena, Italy Sheared limestone breccia with indications of soft sediment deformation fractures and extensive late-stage solution seams and stylolites.
445stone 445 Broccatello di Torbe, from Torbe, Verona, Veneto, Italy A redeposited pelagic limestone of the Jurassic Rosso Ammonitico Formation.
216stone 216 Broccatellone from Verzirhan, Bilecik,Turkey Limestone breccia-conglomerate with a ferruginous matrix. It has extensive post-depositional fracturing and calcite veining.
437stone 437 Broccatellone, from Verzirhan, Bilecik,Turkey Polymict limestone breccia with spar-filled cavities. Note suturing/dissolution at clast boundaries.
448stone 448 Broccatellone, from Verzirhan, Bilecik,Turkey Polymict limestone breccia.
948stone 948 Broccatellone, from Verzirhan, Bilecik,Turkey Tectonised limestone breccia-conglomerate.
527stone 527 Calcare compatta di Pisa, from Pisa, Tuscany, Italy Micritic limestone containing scattered grains of quartz. Dendritic growths of manganese/iron oxides emanate from fractures and form discrete spots, and are particularly well developed on the unsawn reverse of the sample. Brown areas are filler/polishing compound.
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