624 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Bedded volcanogenic sediment of calcareous composition throughout, with ovoid clasts up to 30mm of altered ultramafic rock. It has possible ripples and other soft sediment structures with some rip-ups and clasts settled in troughs. One layer comprises clasts of 1-2mm uniformly sized rounded grains. |
625 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Finely laminated carbonate-rich tuff or volcanogenic sediment. The white laminae are composed of altered ultramafic clasts and black (oxide?) grains. The stone is crossed by later veins with alteration haloes. |
626 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
A carbonate-rich laminated water-lain tuff, probably a volcanogenic sediment. It has alternating dark and light grey layers, the former showing occasional rip-ups. Half of the specimen comprises a dark grey graded coarser layer and a light grey well-graded finer layer; the coarser layer contains aligned dark angular clasts which are possibly fluid-escape veinlets. |
627 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Fine-grained carbonate-rich volcanogenic sediment. The finely laminated dark grey layer is intersected by a network of light coloured veins (possible fluid escape veins). Grey veinlets rise perpendicular from the dark layer, through two intermediate well-laminated layers, into the white band. |
628 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Carbonate-rich bedded volcanogenic sediment, comprising well-graded light and dark layers at abrupt contact with each other. The light layer has rounded clasts up to 4mm of altered tephra. The two elongated ovoid bodies with concentric structure and crenulate margins, have diffuse margins especially with the lighter layer, and may be metasomatically altered carbonate xenoliths. |
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. |
630 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Carbonate-bearing volcanogenic mudstone with signs of bedding and soft-sediment deformation. It has a network of anastomosing white veinlets, and occasional dark ovoid bodies. Some of these show a concentric structure suggesting they are accretionary lapilli. |
631 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
A calc-silicate skarn. It is medium to coarse-grained, and contains irregular patches with concentric zonary structure, interior part of carbonate stained brown in places and acicular crystals of dark green amphibole passing outwards through zone of same mineral assemblage but more granular crystal form into outer zone of white carbonate (aragonite?). |
632 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
A calc-silicate skarn, composed of iron-stained brown and pale green granular dolomite/calcite and dark green to black amphibole/chlorite mixture containing scattered aggregates of yellow ?. Carbonate-rich parts contain zones of subhedral pale green crystals which may be prehnite. |
633 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
A silicate-rich skarn with dark patches of ?grossular, and possible prehnite and pyroxene. Minor calcite is also present, perhaps mixed with dolomite. |
634 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Silicate-rich skarn with fan aggregates of fibrous green amphibole, and abundant muscovite. It has minor grossular garnet, spinel, and calcite, the latter possibly mixed with dolomite. Pyrite was also present in veins, and its oxidation has resulted in some cracking of the specimen. |
635 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Metasomatised carbonate, possibly from a skarn deposit. It is composed of calcite perhaps with dolomite. Fractures contain hematite. |
636 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Silicate-rich skarn with dispersed carbonate and some euhedral crystals in vugs. Fawn-coloured feldspar-bearing) to pale green (amphibole), darker green and black irregular patches (acicular green amphibole and Fe-oxide/spinel). |
637 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Silicate-rich skarn, containing green amphibole and fawn-coloured feldspar. Brown areas are filler. |
638 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Altered volcaniclastic sediment. Angular clasts/tephra have various textures and some have black oxide-rich margins. Minor disseminated carbonate is present. |
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. |
640 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Welded tuff. Densely welded and recrystallised, with a dark brown to black streaky texture. A shard structure is faintly visible. |
641 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
A porphyritic lava/dyke rock, probably a trachyandesite, showing a large cognate inclusion with a reaction rim. It has euhedral phenocrysts of pyroxene, feldspar and olivine. The fine-grained groundmass contains the same minerals set in devitrified glass or zeolite. |
642 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Ignimbrite. A devitrified welded rock containing megacrysts of simple and lamellar-twinned feldspars, smaller crystals of ferromagnesian minerals, and fine-grained rounded clasts. The compression of the shards is evident in the side of the specimen. |
643 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Ignimbrite. A devitrified welded rock containing megacrysts of simple and lamellar-twinned feldspars, smaller crystals of ferromagnesian minerals, and fine-grained rounded clasts. The compression of the shards is evident in the side of the specimen. |
644 |
Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy |
Olivine basalt/ankaramite. An altered porphyritic basic volcanic/dyke rock with phenocrysts of subhedral to euhedral pyroxene, olivine, and plagioclase. Calcite fills the amygdales. |
574 |
Pietra Braschia, from The Western Alps |
Garnet peridotite showing reaction rims with radial structure around embayed garnets. The outer rim is probably granular pyroxene. The matrix is olivine-rich, recrystallised, with a tectonic fabric. |
564 |
Pietra alluminosa (alumstone), from Monti della Tolfa, near Civitavecchia, Rome, Lazio, Italy |
Alumstone. Medium- to fine-grained granular alunite with abundant cavities (vugs) lined with alunite crystals. Red/ brown is iron staining mainly in and around the vugs. |
714 |
Petrified wood, locality unknown |
Wood with bivalve borings (mainly visible on sides of specimen) infilled with limestone, the whole subsequently silicified. Note scattered pyrite crystals in borings. |
715 |
Petrified wood, locality unknown |
Silicified wood; but lacking knots and very much paler than Corsi describes. |
716 |
Petrified wood, locality unknown |
Silicified wood, partly stained and banded with brown goethite and red hematite. |
717 |
Petrified wood, locality unknown |
Silicified wood, cavities infilled with quartz crystals. |
718 |
Petrified wood, locality unknown |
Silicified wood with very well-preserved cell structure, most probably opal rather than quartz. |
126 |
Petit antique, from area around Hèche and Hèchettes, Hautes-Pyrénées, France |
Breccia of black and grey limestone clasts in a compact white granular calcite matrix. |
123 |
Pavonazzetto, from Iscehisar (Synnada), Afyonkarahisar Province, Turkey |
Breccia-conglomerate of medium-grained white calcite marble clasts in a purple-red hematite-rich calcite matrix. |
124 |
Pavonazzetto, from Iscehisar (Synnada), Afyonkarahisar Province, Turkey |
Breccia-conglomerate of medium-grained white calcite marble clasts in a purple-red hematite-rich calcite matrix. |
420 |
Pavonazzetto, from Iscehisar (Synnada), Afyonkarahisar Province, Turkey |
Breccia of medium to coarse-grained calcite marble clasts in a darkred marble matrix. |
917 |
Pavonazzetto, from Iscehisar (Synnada), Afyonkarahisar Province, Turkey |
Sheared marble breccia. |
918 |
Pavonazzetto, from Iscehisar (Synnada), Afyonkarahisar Province, Turkey |
Sheared breccia of marble clasts. |
513 |
Palombino venato, locality unknown |
Algal limestone. |
57 |
Palombino rosso di Ancona, most probably from the area west of Ancona, in the eastern Apennines, Italy. |
Pelagic limestone from the Upper Cretaceous to Eocene Scaglia Rossa Formation. A bioturbated fossiliferous biomicrite with abundant tiny planktonic forams and calcispheres. Sparse slender calcite-filled fractures constrain the pink diagenetic colouring banding, analogous to the effect seen in pietra paesina. |
18 |
Palombino di Mazzurega, from Mazzurega, near Fumane, Verona, Veneto, Italy |
Burrowed micritic limestone with calcite-filled fractures, perhaps Lower Cretaceous 'Biancone'. |
503 |
Palombino di Cesena, from Cesena in Emilia, Forli, Emilia-Romagno, Italy |
Micritic limestone showing faint iron-staining constrained by a system of healed microfractures. |
19 |
Palombino di Ancona, from Ancona, Marche, Italy is not confirmed but may be correct. |
Burrowed micritic limestone with patchily distributed planktonic forams and other bioclasts. It is possibly a variety of 'calcare massiccio'. |
12 |
Palombino antico, probably from Turkey, but perhaps from the Apennines of Italy |
Biosparite limestone with abundant bivalve fragments. It fluoresces yellow strongly under longwave ultraviolet light. |
13 |
Palombino antico, possibly from the Apennines, Italy. |
Heavily recrystallised intraclastic limestone. The brown specks are polishing compound. |
750 |
Opal, resinite della Tolfa, from Monti della Tolfa, near Civitavecchia, Rome, Lazio, Italy |
Massive resinite, a variety of opal; ferruginous coloration. |
424 |
Oolite bigia di Brescia, from Brescia, Lombardy, Italy |
Oolitic limestone; oosparite with abundant crinoid debris. |
423 |
Oolite bianca e gialla di Monte Baldo, from Monte Baldo, and most probably from Punta San Vigilio, Verona, Veneto, Italy |
Oolitic limestone; oosparite with extensive yellow limonite in the matrix and cortex of the ooliths. Brown is filler/polishing compound. |
422 |
Oolite bianca di Monte Baldo, from Monte Baldo, and most probably from Punta San Vigilio, Verona, Veneto, Italy |
Oolitic limestone; oosparite with calcite-filled fractures. |
414 |
Occhio di pernice, locality unknown |
Limestone conglomerate. Clasts are in part intraclast-rich; this may be debris flow material. Note extensive stylolites and calcite-filled fractures |
241 |
Occhiadino di Como, from Como, Lombardy, Italy |
Limestone. A bioturbated fossiliferous microsparite with abundant oncolites, and mollusc, foram and echinoderm debris. It has prominent spar-filled fractures. |
198 |
Occhiadina di Bergamo, from Bergamo, Lombardy, Italy |
Birds-eye limestone; probably originally a peloidal micrite. |
670 |
Obsidian, locality unknown |
Obsidian. Black glassy rock speckled with round white amygdales or spherulites. |
71 |
Nero antico from Jebel Aziza, Tunisia |
Very fine-grained black marble with intersecting shear fractures and white calcite/pyrite-filled extension veinlets. |
181 |
Nembro di San Giorgio, from Verona, Veneto, Italy; but San Giorgio is doubtful. |
Peloidal/intraclastic limestone with fine grained micrite/microspar matrix, and with pervasive solution-seams. |
191 |
Nembro di Monta Baldo, from Monte Baldo, Verona, Veneto, Italy |
Limestone; a fossiliferous burrowed peloidal biosparite. |
725 |
Moss agate, agata di Sardegna, from Sardinia, Italy |
White chalcedony (cryptocrystalline quartz) with subtle agate banding, and extensive dendritic iron/manganese oxides. |
255 |
Moregio di S.Ambrogio, from 'Sant'Ambrogio', Vicenza, Veneto, Italy - most likely the Chiampo area, Vicenza. |
Biosparite limestone with abundant skeletal debris of larger benthic forams (Nummulites, Assilina, Alveolina), small benthic forams, calcareous algae, echinoderms, and bryozoans. Note the pervasive incipient stylolites. It is probably of Middle Eocene age. |
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. |
281 |
Meandrite di Verona, from Verona, Veneto, Italy |
Recrystallised colonial scleractinian coral with pink micrite and spar-filled voids. |
502 |
Marmorato di Osimo, from Osimo, Ancona, Marches, Italy |
Burrowed nodular fossiliferous micritic limestone with abundant 'filaments' of Buchia/Posidonia (bivalves). |
210 |
Marmorato di Como, from Como, Lombardy, Italy |
Birdseye limestone, probably originally a peloidal micrite. Oncolites, rounded sedimentary structures resulting from cyanobacterial growth, can be seen in places. |
847 |
Marmor Claudianum, granito del Foro, from Mons Claudianus, Eastern Desert, Egypt |
It is a weakly metamorphosed granodiorite showing some foliation, and composed mainly of plagioclase feldspar, hornblende, biotite, and lesser amounts of quartz, with traces of epidote. |
708 |
Marmor aequipondus, perhaps from Liguria, Italy |
Serpentinised (or possibly fine amphibolitised) peridotite with coarse-grained green former pyroxenes, pale green former olivine domains, and opaque oxide. |
504 |
Marmo venato di Tivoli, from Tivoli, Roma, Lazio, Italy |
Biomicrite with scattered dendritic manganese oxides. Side of specimen shows slumping and intraclasts in stylolitised shelly limestone. Note subsequent extensive fracturing, the fractures calcite-filled. |
505 |
Marmo venato di Tivoli, from Tivoli, Roma, Lazio, Italy |
Recrystallised, probably originally bioturbated, micritic or microspar limestone with extensive stylolites and calcite filled fractures. |
38 |
Marmo scuro di Trento, from Trent, Trentino-Alto Adige, Italy (not confirmed) |
Biomicrite limestone densely packed with tests of foraminifera and other plankton, with calcite-filled veins and (on the sides of the specimen) dendrites of black manganese oxides. The whole stone has ferruginous staining constrained by the fracture pattern. |
261 |
Marmo schisto bigio di Monte Bolca, from Monte Bolca, Val d'Illasi, Verona, Veneto, Italy |
Foraminiferal limestone (Alveolina?), with calcite-filled voids in the forams. |
260 |
Marmo schisto bianco di Monte Bolca, from Monte Bolca, Val d'Illasi, Verona, Veneto, Italy |
Limestone. A fossiliferous biosparite with abundant benthic forams (Quinqueloculina, Alveolina), algae, and sclerosponge. It is probably Eocene. |
901 |
Marmo salino dell'Elba, from the island of Elba, Livorno, Tuscany, Italy |
Fairly coarse-grained calcite marble; bands of sulphide/oxide impurities evident on side of specimen. |
535 |
Marmo rosso di Siracusa, from Syracuse, Sicily, Italy |
Perhaps a deep-water mudstone. The colours are diagenetic. |
183 |
Marmo rosso di sant'Eligio, from Sant'Eligio, Verona, Veneto, Italy |
Nodular Jurassic-Cretaceous pelagic limestone, the colour leached along fractures and stylolites, which are spar-filled in places. Contains ammonites and a few patchy areas rich in other fossil debris. |
64 |
Marmo rosso di Sabina; Sabina, Umbria, Italy is not confirmed as the locality. |
A laminated limestone containing bioclasts and peloids (pellet-sized grains) in a sparite matrix. |
67 |
Marmo rosso di Prodo, from Prodo, or more probably Colonnetta di Prodo, Terni, Umbria, Italy |
Limestone. A fossiliferous biomicrite crowded with planktonic forams and calcispheres. Disrupted banding marks a layer that has transported and re-sedimented, probably the result of slumping. Fractures are calcite-filled. |
70 |
Marmo rosso di Lugo, rosso Verona, from Lugo di Grezzana, in the Val Pantena, Verona, Veneto, Italy |
A burrowed bioclast and peloid-rich micritic limestone, probably from the Jurassic Rosso Ammonitico Formation. |
69 |
Marmo rosso d'Abruzzo, from Abruzzo, Italy. |
Burrowed bioclast-rich biomicrite limestone. |
338 |
Marmo rosa di Stalavena, from Stalavena di Grezzana, Val Pantena, Verona, Veneto, Italy |
Not a travertine and so incorrectly classified as alabaster. This is a bioclast-rich burrowed micritic limestone with stylolites and spar-filled fractures. |
341 |
marmo rosa dell' Alcenago, from Alsenaso, Val Pantena, Verona, Veneto, Italy |
Not ‘alabaster’. A fine-grained calcarenite limestone. |
563 |
Marmo polveroso di Pistoia, from Pistoia, Tuscany, Italy |
Micritic limestone with abundant planktonic foraminifera. |
214 |
Marmo pavonazzo dell'Alpi, from the Alps |
Micaceous ?siltstone (siliceous), with calcite-filled veins. |
180 |
Marmo palombino di Sestri, from Sestri Ponente, Genoa, Liguria, Italy |
Limestone; a pel-sparite with what look like birds-eyes, and with scattered molluscan and algal debris. One corner of the specimen has compact banded travertine. |
259 |
Marmo ovara bigio di Bolca, from Monte Bolca, Val d'Illasi, Verona, Veneto, Italy |
Fossiliferous biosparite limestone with abundant small nummulites. Also present are diverse bethic forams, algal and molluscan grains. |
262 |
Marmo ovara bianca di Monte Bolca, from Monte Bolca, Val d'Illasi, Verona, Veneto, Italy |
Alveolinid limestone with algal grains and small intraclasts. |
75 |
Marmo nero di Trapani, perhaps marmo nero di Erice from Monte San Giuliano; Trapani, Sicily, Italy |
Bioclastic limestone with abundant black recrystallised relics of microfossils. The side of the specimen shows the black coloration is constrained by calcite-filled microfractures giving the effect of pietra paesina (ruin marble). |
74 |
Marmo nero di Torino from the province of Turin, or more probably Portoro from the Porto Venere area, Liguria, Italy. |
Black fine-grained limestone with a few thin yellow/white veins, and with distinctive black (organic matter?) veining. |
76 |
Marmo nero di Como, from Como, Lombardy, Italy |
Black bituminous limestone with inclusions of organic matter, perhaps coprolites. |
158 |
Marmo mischio di Monte Bolca, from Monte Bolca, Val d'Illasi, Verona, Veneto, Italy |
Heavily recrystallised foraminiferous limestone. Large benthic forams are visible on the side of specimen. |
498 |
Marmo marrone di Sestino, from Sestino, Milan, Lombardy, Italy; or from Verona, Veneto, Italy |
Most probably a resedimented nodular limestone with extensive solution seams and stylolites. |
99 |
Marmo Greco scritto from Capo de Garde, Annaba (Hippo Regius), Algeria |
A deformed, medium to coarse-grained calcite marble. A tectonite showing linear shear fabric. The dark grey graphite-rich zones result from the deformation of a breccia or vein system rather than a colour-banded rock. |
100 |
Marmo Greco scritto from Capo de Garde, Annaba (Hippo Regius), Algeria |
A deformed medium to coarse-grained calcite marble. A tectonite showing linear shear fabric. The banding is more continuous than in Corsi no.99. |
1 |
Marmo Greco duro; most probably Thasian marble, marmo Thaso from Cape Vathy, Island of Thasos (Thassos), East Macedonia and Thrace, Greece |
Medium-grained dolomite marble |
45 |
Marmo giallo e turchino di Mizzolle, from Mizolle, Val Pantena, Verona, Veneto, Italy |
Burrowed limestone. The grey matrix is a fossiliferous grain-supported bio-pel micrite limestone. The yellow burrow-filling has subhedral rhombic calcite crystals, appearing peloidal in places. It has stylolites and stylolitised pellet contacts. |
47 |
Marmo giallo di Torri del Benaco, giallo di Verona, Verona yellow, from Torri del Benaco, Verona, Veneto, Italy |
Fine-grained fossiliferous bioclast-rich limestone, burrowed, and showing prominent stylolites. |
190 |
Marmo giallo di Saltrio, from Saltrio, Milan, Lombardy, Italy |
Recrystallised limestone or marble, with calcite-filled fractures, and with ferruginous orange stylolites. |
48 |
Marmo giallo di Mizolle, from Mizolle, Val Pantena, Verona, Veneto, Italy |
Sparry yellow limestone with scattered rhombohedral crystals of calcite, and with intraclasts of white fine-grained limestone. Dark coloured speckling is pyrite and wax filler. |
46 |
Marmo giallo di Lubiara, from Lubiara, Caprino Veronese, Verona, Veneto, Italy |
Biomicrite limestone with scattered small bioclasts, slender fractures and stylolites. Sparse large intraclasts suggest it is from a debris-flow deposit. |
155 |
Marmo fiorito di Casale, perhaps Lumachella di San Vitale, from Casale, Verona, Veneto, Italy |
Heavily recrystallised limestone with relict bivalves and other rather obscure traces of fossils. |
15 |
Marmo di Segni, from Segni, Rome, Lazio, Italy |
Sparsely peloidal/intraclastic fine-grained limestone (micrite or microspar) with calcite-filled vugs. The top surface shows the fenestral fabric of a birds-eye limestone. |
593 |
Marmo di Santa Cattarina dell'Elba, from the island of Elba, Livorno, Tuscany, Italy |
Serpentinite, finely brecciated and veined with calcite. |
189 |
Marmo di Candoglia, marmo del Duomo, from Candoglia, Novara, Piedmont, Italy |
Coarse-grained calcite marble with grey tinted 'veins', and with small grains of quartz scattered through it, giving a slightly mottled appearance. |
201 |
Marmo di Brentónico, from Brentónico, Trentino, Trentino-Alto Adige, Italy |
Fractured, stylolitised, burrowed nodular limestone. It is fine-grained, and variably bioclast-rich/bioclast-poor, with scattered ammonoids. Patches are rich in dolomite rhombs. |
250 |
Marmo della Gaetta, from Gaetta, Lake Como, Como, Lombardy, Italy; or more probably from the area north of Verona, Veneto, Italy. |
Bioclast-rich microsparite limestone with gastropods and bivalves; perhaps originally nodular/intraclastic/conglomeritic, now much brecciated. It has calcite-filled fractures and stylolites. |
194 |
Marmo della Gaetta, from Gaetta, Lake Como, Como, Lombardy, Italy |
Heavily recrystallised and fractured ?calcarenite, with disseminated pyrite on fractures. |
278 |
Marmo conchigliare rosso di Roma, from Rome, Lazio, Italy |
Fossiliferous calcareous sandstone with serpulid worm tubes and bivalve debris. |