Corsi Collection of Decorative Stones

Page 2 of 4, showing 101 - 200 of 326 stones.
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OUMNH number Name and quarry location Geological description
OUMNH number Name and quarry location Geological description
651stone 651 Pietra dell'Etna, from Mt. Etna, Catania, Sicily, Italy An altered pumice flow breccia. Coarse breccia with clasts of red vesicular rock in pale carbonate matrix. The vesicles are carbonate-filled.
648stone 648 Pietra dell'Etna, from Mt. Etna, Catania, Sicily, Italy Ignimbrite. A poorly sorted breccia with clasts of rusty-coloured medium grained crystalline rock, discrete crystals of altered feldspar, and ferromagnesian minerals, all in a very fine-grained hematite-bearing groundmass. There is a faint preferred orientation of the clasts.
647stone 647 Pietra dell'Etna, from Mt. Etna, Catania, Sicily, Italy Marble breccia. A low-density breccia with angular clasts of meta-carbonate, and hematite-filled veins. Much of the brown is filler.
646stone 646 Pietra dell'Etna, from Mt. Etna, Catania, Sicily, Italy Altered volcanic breccia with a central pale grey fine-grained zone. The large rounded clasts are ferromagnesian-rich volcanic rock, one having a higher feldspar content. The fine-grained zone has a medium-grained leucocratic carbonate-rich core.
645stone 645 Pietra dell'Etna, from Mt. Etna, Catania, Sicily, Italy Altered pumice breccia. Poorly sorted, with clasts up to 50mm, having rounded, carbonate-infilled vesicles.
639stone 639 Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy Volcanic breccia. This slightly altered polygenetic volcaniclastic rock has clasts/tephra which include alkali volcanic types, sediments and possible skarn fragments. It is poorly sorted and structureless, and may be an ignimbrite.
629stone 629 Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy A deformed, veined carbonate-rich rock. The cream tint and red fracture-fill is caused by jeweller's rouge used for polishing, and is not evident on the unpolished side of the specimen. Yellow is wax filler. The cream end of the specimen is a strongly deformed coarse clastic rock with rounded clasts up to 20mm, some containing brown oxide zones, that plastically intrude the other part.
623stone 623 Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy Brecciated meta-calcilutite with veins of colourless calcite containing metallic yellow pyrite. It retains signs of soft sediment deformation in darker clasts. Some of the brown may be limonitic but most is filler/polishing compound.
622stone 622 Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy Brecciated meta-calcilutite with a few spherical two-phase calcite-filled cavities, and with limonitised siliceous veining. Note brown crystals of ?siderite filling cavities on underside of specimen.
621stone 621 Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy Brecciated meta-calcilutite, with brown limonitic veining, occasionally widening into calcite-limonite-opaque oxide aggregates. Some of the brown may be filler.
608stone 608 Serpentina delle Alpi, from the Alps Silicified serpentinite breccia. Rounded clasts of granular silicified serpentine in massive quartz matrix, with streaks of cream quartz-dolomite.
598stone 598 Serpentina di Corsica, from Corsica, France Breccia of angular clasts of brown and pale green serpentinite in a paler coloured matrix with a reticulated system of very fine grey fibrous chrysotile veins throughout.
594stone 594 Serpentina verde di Genova, from Genoa, Liguria, Italy Brecciated serpentinite. Broken clasts of pale green serpentine, platey 'striped' dark green serpentine and brown/white marble in a matrix of brown and white calcite.
587stone 587 Serpentina verde di Polcevera, from Polcevera, Genoa, Liguria, Italy Brecciated serpentinite.
586stone 586 Serpentina verde di Polcevera, from Polcevera, Genoa, Liguria, Italy Brecciated serpentinite.
585stone 585 Serpentina verde di Polcevera, from Polcevera, Genoa, Liguria, Italy Brecciated serpentinite.
584stone 584 Serpentina verde di Polcevera, from Polcevera, Genoa, Liguria, Italy Brecciated serpentinite.
575stone 575 Serpentina di Valsabbia, from Valsabbia, Brescia, Lombardy, Italy Breccia with clasts mainly of serpentinite/ophicalcite, a few of marble.
573stone 573 Serpentina verde di Calabria, from Calabria, Italy Brecciated serpentinite.
571stone 571 Serpentina verde di Susa, from Val di Susa, Turin, Piedmont, Italy Serpentinite veined with fine-grained grey calcite.
570stone 570 Serpentina verde di Varallo, from Varallo, Novara, Piedmont, Italy A sheared breccia of serpentinite clasts in fine-grained calcite matrix, with abundant streaks and grains of dark grey oxide minerals.
569stone 569 Serpentina verde di Varallo, from Varallo, Novara, Piedmont, Italy Brecciated serpentinite-marble with light to dark green fragmented serpentinite clasts in fine-grained marble and vein calcite matrix. Serpentinite has local concentrations of fine-grained oxide mineral.
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.
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.
552stone 552 Gesso di Faenza, from Faenza, Ravenna, Emilia-Romagna, Italy Calcite-cemented breccia with small angular gypsum clasts, patches of micritic limestone and smaller dark grains.
537stone 537 Diaspro tenero di Sicilia, pietra topografica di Taormina, from Taormina, Messina, Sicily, Italy Micritic limestone or marl with diagenetic colouring. Veins and fractures are filled with calcite.
536stone 536 Diaspro tenero di Sicilia, tigrato di Trapani, from Custonaci, Trapani, Sicily, Italy Micritic or microsparite limestone containing a mass of Teredo or similar wood-boring bivalves; no evidence of the wood itself remeins.
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.
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.
523stone 523 Pietra paesina, from Valdarno, Florence, Tuscany, Italy Micritic limestone or calcareous marl from the Cretaceous Alberese Formation, showing minor fracture constrained iron-staining, and areas of dendritic manganese oxides.
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.
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.
500stone 500 'Persichino di Romegiano', from Domegiano or Romagnano, Verona, Veneto, Italy Fossiliferous micritic limestone with debris probably of bivalves.
497stone 497 Rosso Verona, from Verona, Veneto, Italy Limestone from the Jurassic Rosso Ammonitico formation. A red nodular, micritic limestone with pervasive clay-coated solution seams.
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.
495stone 495 Breccia di Carrara, from Carrara, Massa e Carrara, Tuscany, Italy Marble breccia-conglomerate
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.
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.
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.
489stone 489 Breccia degli Appennini, from the Apennines, Italy Deformed granitoid; porphyroblasts are quartz dominantly, perhaps originally vein quartz, now disrupted.
488stone 488 Fior di pesco Apuano, from Seravezza, Lucca, Tuscany, Italy Sheared marble breccia; perhaps a tectonised burrowed/nodular limestone.
487stone 487 Breccia di Casale, from Casale, Verona, Veneto, Italy Bioclastic limestone with large benthic foraminifera.
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 .
485stone 485 breccia rossa Appenninica, from between Biassa and Pegazzano, La Spezia, Liguria, Italy Burrowed stylolitised nodular limestone which has been tectonically modified.
484stone 484 Serpentina di Torino from the province of Turin, Piedmont, Italy Poorly-sorted breccia of heavily fractured, calcite-cemented clasts of serpentinite in a gritty ferruginous matrix.
483stone 483 'Breccia traccagnina di Giazza', locality unknown; possibly the Verona area, Veneto, Italy Polymict limestone breccia-conglomerate with solution modified clast boudaries.
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.
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.
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.
478stone 478 Breccia di Sciro, from Isle of Skyros, Sporades, Central Greece Sheared polymict marble breccia
477stone 477 Breccia di Seravezza, from Seravezza, Lucca, Tuscany, Italy Breccia of calcite marble clasts.
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.
475stone 475 Cipollino mandolato, perhaps Tarteing, from Tarteing, Esplas de Sérou, Ariège, Midi-Pyrénées, France Calcite marble. A metamorphosed nodular limestone, clay matter surrounding the nodules has altered to fine-grained chlorite. A few slender veins have ferruginous infills.
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.
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.
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.
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.
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.
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.
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.
467stone 467 Breccia di Tivoli, from Tivoli, Lazio, Italy Black limestone breccia with white limestone matrix.
466stone 466 Breccia del Largo di Garda, from Lake Garda, Lombardy, Italy Rosso ammonitico Middle-Upper Jurassic nodular pelagic limestone.
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.
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.
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.
460stone 460 Breccia de'Colli Euganei, probably from Verona or Vicenza regions, Veneto Italy Brecciated limestone with pervasive stylolites.
458stone 458 Pomarolo di Serme, from Serme, Verona, Veneto, Italy Brecciated limestone with red, non-calcareous (perhaps lateritic) matrix.
457stone 457 Griotte, from the Haute Pyrénées, France Devonian hematite-rich fine-grained nodular limestone with extensive stylolite development. White areas are calcite spar-filled goniatites
456stone 456 Breccia di Cango, from Cango, Milan, Lombardy, Italy Brecciated marble.
455stone 455 Mischio di Casale, from Casale, Verona, Veneto, Italy, is doubtful Limestone breccia-conglomerate with scattered large bioclasts of marine organisms in a creamy microcrystalline matrix containing forams. Note extensive suturing of grain boundaries, and calcite filled fractures.
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.
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.
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.
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.
450stone 450 Breccia della Gaetta, from Gaetta (Gaeta), Lake Como, Como, Lombardy, Italy Limestone breccio-conglomerate in pink limestone matrix.
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.
448stone 448 Broccatellone, from Verzirhan, Bilecik,Turkey Polymict limestone breccia.
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.
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.
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.
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.
440stone 440 Corallina di Pisa, from Pisa, Tuscany, Italy Breccia of fine-grained calcite marble clasts.
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.
438stone 438 Breccia di Brescia, from Brescia, Lombardy, Italy Limestone breccia.
437stone 437 Broccatellone, from Verzirhan, Bilecik,Turkey Polymict limestone breccia with spar-filled cavities. Note suturing/dissolution at clast boundaries.
436stone 436 Semesanto di Milano, from Milan, Lombardy, Italy Lower Jurassic limestone. A crinoidal biosparite, the red crinoid debris overgrown with white calcite rims, and with coarse sparry calcite in the interstices.
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.)
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.
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.
432stone 432 Breccia di Seravezza, from Seravezza; or perhaps breccia Medicea, from nearby Stazzema, Lucca, Tuscany, Italy Fine-grained calcite marble breccia.
431stone 431 Breccia pavonazzetto, from Iscehisar (Synnada), Afyonkarahisar Province, Turkey Marble breccia; a heavily stylolitised, metamorphosed polymict limestone conglomerate, probably resedimented.
430stone 430 Pomorol di S.Giorgio, from San Giorgio, Verona, Veneto, Italy Brecciated, stylolitised, biomicrite limestone with scattered intraclasts.
429stone 429 Corallina di Carrara, from Carrara, Massa e Carrara, Tuscany, Italy Marble breccia, medium-grained calcite marble clasts in a granular ferruginous calcite matrix. It is heavily fractured, the fractures filled with calcite.
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.
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.
421stone 421 Breccia della villa Adriana, breccia Quintilina, most probably from Levanto, Liguria, Italy Serpentinite breccia.
420stone 420 Pavonazzetto, from Iscehisar (Synnada), Afyonkarahisar Province, Turkey Breccia of medium to coarse-grained calcite marble clasts in a darkred marble matrix.
419stone 419 Breccia gialla e nera, from Portovenere, La Spezia, Liguria, Italy Black and grey limestone conglomerate, with a yellow ferruginous calcite matrix.
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