835 |
Granito nero, from between Aswan and Shellal District, Nile Valley, Egypt |
Hornblende biotite granite/granodiorite hybrid with white feldspar megacrysts. It is crossed by a pink granite (predominantly potash feldspar) vein. |
836 |
Granito nero, from between Aswan and Shellal District, Nile Valley, Egypt |
Biotite granodiorite with a few megacrysts of pink potash feldspar; a variety of the Aswan granodiorite from the Precambrian basement rocks. |
845 |
Granito nero, from between Aswan and Shellal District, Nile Valley, Egypt |
Biotite-bearing granodiorite with a few aligned feldspar megacrysts. |
846 |
Granito nero, from between Aswan and Shellal District, Nile Valley, Egypt |
Biotite-bearing granodiorite with a few small pink K-feldsar megacrysts, and a vein of potash feldspar across the corner of the sample. |
874 |
Granito orbiculare di Corsica, from shore of River Taravo, near Olmeto, Corse-du-Sud, Corsica, France |
Orbicular diorite, the layers composed of plagioclase, hornblende, or a combination of these minerals. |
831 |
Granito rosso antico minuto, from between Aswan and Shellal District, Nile Valley, Egypt |
Fine-grained hornblende biotite muscovite granite. |
832 |
Granito rosso antico minuto, from between Aswan and Shellal District, Nile Valley, Egypt |
Fine-grained hornblende biotite granite. |
833 |
Granito rosso antico minuto, from between Aswan and Shellal District, Nile Valley, Egypt |
A fairly fine-grained hornblende biotite granite/granodiorite hybrid. |
837 |
Granito rosso antico, sienite, from between Aswan and Shellal District, Nile Valley, Egypt |
Coarse-grained biotite granite with large megacrysts of pink K-felspar. |
839 |
Granito rosso antico, sienite, from between Aswan and Shellal District, Nile Valley, Egypt |
Coarse-grained biotite granite with megacrysts of salmon K-felspar. |
840 |
Granito rosso antico, sienite, from between Aswan and Shellal District, Nile Valley, Egypt |
Coarse-grained biotite granite with megacrysts of salmon K-felspar. |
992 |
Granito rosso antico, sienite, possibly from between Aswan and Shellal District, Nile Valley, Egypt |
Fine-grained hornblende biotite granite-granodiorite. |
828 |
Granito verde a erbetta, from Wadi Umm Wikala, near Wadi Semna, Eastern Desert. Egypt |
Fine to medium-grained metagabbro, with extensive alteration of augite to chlorite and some chloritisation around the edges of plagioclase feldspar crystals. Metallic pale yellow pyrite is present as scattered crystals. |
825 |
Granito verde della Sedia di San Lorenzo, from Wadi Umm Wikala, near Wadi Semna, Eastern Desert. Egypt |
Fine to medium-grained gabbro or metagabbro (weakly metamorphosed) with some alteration of the green augite to brown? |
819 |
Granito violetto, marmor Troadense, from Çigri Dâg, Ezine, Canakkale, Marmara; Turkey |
Medium-grained quartz monzonite with large violet-grey megacrysts of potash feldspar in a groundmass of quartz, plagioclase, biotite and hornblende. |
856 |
Granito, probably granito di Corsica, from Corsica, France |
Coarse-grained granodiorite with megacrysts of pink potash-feldspar, rather smoky quartz, and accessory titanite. |
407 |
Griotte, from the Haute Pyrénées, France |
Lower Devonian red nodular limestone, clay-rich matrix, with extensive solution seams and stylolites |
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 |
785 |
Imperial porphyry, porfido bastardone, from Gebel Dokhan, Eastern Desert, Egypt |
Andesite-dacite porphyry; the 'bastardone' variety with white phenocrysts of plagioclase feldspar largely concentrated in scattered patches of brown groundmass. The purple colour of the greater part of this stone is due largely to trace piemontite, the manganese member of the epidote group, and indicates a degree of metamorphism. |
786 |
Imperial porphyry, porfido bigio, from Gebel Dokhan, Eastern Desert, Egypt |
Andesite-dacite porphyry; pink to white phenocrysts of plagioclase feldspar and black euhedral crystals of hornblende in a grey-brown groundmass. |
788 |
Imperial porphyry, porfido nero, from Gebel Dokhan, Eastern Desert, Egypt |
Andesite-dacite porphyry of white plagioclase phenocrysts in a black groundmass. |
808 |
Imperial porphyry, porfido nero, from Gebel Dokhan, Eastern Desert, Egypt |
Andesite-dacite porphyry of white rectangular plagioclase phenocrysts in a dark grey groundmass. |
783 |
Imperial porphyry, porfido rosso antico, from Gebel Dokhan, Eastern Desert, Egypt |
Andesite-dacite porphyry with pink phenocrysts of plagioclase feldspar. The purple colour is due largely to trace piemontite, the manganese member of the epidote group, and indicates a degree of metamorphism. It is from the Precambrian basement rocks. |
784 |
Imperial porphyry, porfido rosso antico, from Gebel Dokhan, Eastern Desert, Egypt |
Andesite-dacite porphyry with patches of white phenocrysts of plagioclase feldspar. The purple colour is due largely to trace piemontite, the manganese member of the epidote group, indicating a degree of metamorphism. It is from the Precambrian basement rocks. |
719 |
Jasper, locality unknown |
This appears to be a largely silicified oolitic ironstone or oolitic ironstone breccia. Swarms of sub-parallel dark brown fractures give the impression of wood grain. |
705 |
Labradorite, from St Paul's Island, Labrador, Newfoundland, Canada |
Labradorite, a variety of plagioclase feldspar. |
524 |
landscape marble, alberese di Ponte a Rignano, from Ponte a Rignano, Florence, Tuscany, Italy |
Micritic limestone or calcareous marl from the Cretaceous Alberese Formation, showing well-developed dendrites of manganese oxides. |
208 |
Languedoc marble, from Caunes-Minervois, Carcassonne, Aude, France |
Devonian red limestone rich in crinoid debris, with prominent grey-white stromatactis and abundant stylolites. |
787 |
Lapis ieracites, porfido verde egiziano, from Gebel Dokhan, Eastern Desert, Egypt |
Andesite-dacite porphyry of white plagioclase phenocrysts with epidotised rims in a greenish-black groundmass. |
703 |
Lapis lazuli, from Kokcha Valley, Badakhshan, Afghanistan |
Rock composed of lazurite, probably with minor blue sodalite, and with flecks of pyrite and minor white calcite; from a marble deposit formed by contact metamorphism. |
667 |
Lava di Borghetto, from Borghetto, Civita Castellana, Viterbo, Lazio, Italy |
Phonolite tephrite. A porphyritic rock with euhedral white megacrysts of leucite and scattered black pyroxene crystals in a fine-grained groundmass. The leucite megacrysts are cracked, sometimes concentrically zoned, and contain inclusions of pyroxene. |
560 |
Lavagna antica, locality unknown |
Fine-grained siliceous rock with a few carbonate grains; The aggregates of orange-brown crystals are almost certainly relics of pyrite crystals; elsewhere, the pyrite is visible. Slate is not confirmed. |
561 |
Lavagna di Cesena, from Cesena in Emilia, Forli, Emilia-Romagno, Italy |
Calcarenite with spar-filled fractures. Cubic pyrite crystals coat back of specimen. |
562 |
Lavagna di Genoa, ardesia di Lavagna, from Genoa, Liguria, Italy |
Black slate. Fine-grained with fine layering and a few vein stringers parallel to the cleavage. |
16 |
Lithographic limestone, pietra litografica, from the southern Franconian Alb (probably quarries at Solnhofen or Kelheim), Bavaria, Germany |
Upper Jurassic limestone from the Solnhofen Platternkalk Formation. A fossiliferous biomicrite with scattered acicular bioclasts (probably sponge spicules). |
223 |
Lumachella antica, 'astracane dorato', from Henchir al Kasbat (the ancient Thuburbo Maius), Tunisia |
Fossiliferous limestone with abundant recrystallised/spar replaced bivalves and gastropods in a cream-coloured micrite and patchily calcarenite matrix. |
218 |
Lumachella antica, occhio di pavone bianco, perhaps from Verona, Veneto, Italy |
Limestone; a fossiliferous micrite/microsparite crowded with recrystallised bivalve debris. |
221 |
Lumachella antica, occhio di pavone bigio, from Kutluca, Izmit, Turkey |
Late Cretaceous limestone containing rudist bivalves, forams and other bioclasts. |
219 |
Lumachella antica, occhio di pavone nero, locality unknown |
Limestone; a black biosparite matrix with abundant recrystallised bivalves. |
217 |
Lumachella antica, occhio di pavone pavonazzo, from Kutluca, Izmit, Turkey |
Late Cretaceous limestone containing rudist bivalves, forams and other bioclasts. |
222 |
Lumachella antica, occhio di pavone roseo, from Kutluca, Izmit, Turkey |
Late Cretaceous fossiliferous limestone with abundant recrystallised/spar replaced rudist bivalves. |
220 |
Lumachella antica, occhio di pavone rosso, from Kutluca, Izmit, Turkey |
Late Cretaceous limestone containing rudist bivalves, forams and other bioclasts. |
215 |
Lumachella antica, from Mégara, Attica, Greece |
Nummulitic limestone of Middle Eocene age. |
258 |
Lumachella degli Appennini, from the Apennines, Italy |
Poorly sorted conglomerate with limestone and marble clasts together with scattered calcareous algal nodules and bivalves (oysters). |
272 |
Lumachella del Ticino, from Ticino, Lombardy, Italy |
Limestone; a fossiliferous pelsparite with echinoderm debris and algal nodules, and with incipient stylolites. |
290 |
Lumachella del Ticino, from Ticino, Lombardy, Italy |
Jurassic fossiliferous calcarenite with punctate brachiopods (Terebratulids) and ammonites. |
240 |
Lumachella di Abruzzo, from Scontrone, L'Aquila, Abruzzo, Italy |
Limestone. A shell bed with abundant gastropods and large oysters. The matrix is grey biosparite crowded with bioclasts, predominantly molluscan, but also some small benthic forams. |
242 |
Lumachella di Abruzzo, from Scontrone, L'Aquila, Abruzzo, Italy |
Limestone. A fossiliferous calcarenite with calcite cement, probably of Tertiary or Quaternary age. It contains large calcite oysters and high-spired gastropods with the original aragonite shell preserved. |
269 |
Lumachella di Abruzzo, from Scontrone, L'Aquila, Abruzzo, Italy |
Tertiary or Quaternary fossiliferous calcarenite with oyster, heterodont bivalves, gastropods, echinoid spines and small benthic forams. |
293 |
Lumachella di Abruzzo, from Scontrone, L'Aquila, Abruzzo, Italy |
Fossiliferous conglomerate with quartz-rich matrix and clasts of limestone, marble, calc-algae etc. Flattened out bivalves contain original aragonite. It is post-Cretaceous in age. Green/dark yellow brown areas are filler. |
275 |
Lumachella di Canova, possibly from the province of Verona, Veneto, Italy; or Pietra Rosone di Trapani from Trapani, Sicily, Italy |
Limestone containing algal nodules with abundant benthic forams in the matrix. The nodules have bryozoan/molluscan nuclei, and have extensive stylolitization and suturing of clast contacts. |
243 |
Lumachella di Domagiano, from 'Domagiano', Verona, Veneto, Italy |
Limestone, with pel-sparite matrix, crowded with recrystallised spar-replaced whole and fragmentary bivalves (perhaps rudists). It shows intraclast suturing and stylolites. |
276 |
Lumachella di Frascati, from Frascati, Rome, Lazio, Italy |
Algal (?or cyanobacterial) limestone with sparse benthic forams and tubules probably of girvanellid algae. It has calcite-lined and sparry calcite-filled voids. |
236 |
Lumachella di Lugano, from Lake Lugano, Varese, Lombardy, Italy |
Fossiliferous biosparite limestone with abundant molluscan debris, peloids and coated grains, and a large ?cephalopod. Stylolites contain red filler/polishing compound. |
234 |
Lumachella di Menaggio, from Menaggio, Como, Lombardy, Italy, or more likely a lumachella from Verona or Vicenza, Veneto, Italy. |
Fossiliferous pel-sparite limestone. It has abundant peloids and intraclasts of micritic limestone in a sparry matrix. Some layers are rich in bivalves, others are edgewise breccia together with fragments of laminated 'algal' cyanobacterial micrite. |
271 |
Lumachella di Milano, from Milan, Lombardy, Italy |
Burrowed fossiliferous micritic limestone with abundant molluscan debris; it is heavily fractured, and fractures are filled with sparry calcite. |
336 |
Lumachella di San Vitale, mischio di Mizolle, from Mizolle, Val Pantena, Verona, Veneto, Italy |
Limestone; a fossiliferous micrite/biosparite with debris of the the lower Jurassic reef-forming 'Lithiotis' bivalve. |
267 |
Lumachella di San Vitale, from Lugo di Grezzana, Val Pantena, Verona, Veneto, Italy |
Limestone; a fossiliferous micrite with debris of the Lower Jurassic reef-forming bivalves ‘Lithiotis’, probably Lithiotis problematica, as well as other bivalves, and gastropods. |
239 |
Lumachella di San Vitale, from Pigozzo, Val Squaranto; Verona, Veneto, Italy |
Fossiliferous microsparite limestone, the matrix rich in bioclasts. Large, fragmentary bivalves are the reef-forming bivalve Lithiotis. They are recrystallised/replaced by sparry calcite, but original calcite shells survive in places. |
273 |
Lumachella di San Vitale, from San Vitale di Roverè, Verona, Veneto, Italy |
Fossiliferous limestone with large fragments of 'Lithiotis' bivalve. Some contain original calcite microstructure, others are replaced by recrystallised calcite. It has many calcite-filled stylolites and fractures. |
337 |
Lumachella di San Vitale, from the province of Verona, Veneto, Italy |
Fossiliferous limestone with a biosparite matrix. Large shells of 'Lithiotis ' bivalves are filled with calcite spar. Stylolites are evident. |
342 |
Lumachella di San Vitale, from the province of Verona, Veneto, Italy |
Fossiliferous biosparite limestone with large fragments of 'lithiotis' bivalves. Original aragonite shells are replaced by sparry calcite. Some primary prismatic calcite survives. Note the calcite filled fractures and stylolites. |
548 |
Lumachella di San Vitale, from the province of Verona, Veneto, Italy |
Not Gypsum. A Lower Jurassic limestone; matrix is fossiliferous micrite/microspar with molluscan debris. The large white intraclasts are heavily recrystallised shells of 'Lithiotis' bivalves. It has abundant stylolites. |
921 |
Lumachella di San Vitale, from the province of Verona, Veneto, Italy |
Jurassic limestone; matrix is fossiliferous micrite/microspar with molluscan debris. The large white recrystallised shells are of 'Lithiotis' bivalves. |
366 |
Lumachella di San Vitale, from Valpantena, Verona, Veneto, Italy |
Fossiliferous limestone. Large shells of 'Lithiotis' bivalve and other skeletal elements are replaced by calcite spar. The matrix is biosparite. Note the stylolites. |
238 |
Lumachella di Ticino, from Ticino, Lombardy, Italy |
Limestone; a fossiliferous nodular peloidal biomicrite, in places a biopelsparite, with large, spar-replaced gastropods and other molluscs. It has well-developed stylolites. |
244 |
Lumachella di Trento, from Trent, Trentino-Alto Adige, Italy |
Fossiliferous limestone with spar-replaced gastropods, and terebratulid brachiopods. It was probably originally peloidal, with a sparry calcite cement. |
279 |
Lumachella di Valpolicella, perhaps giallo reale, from Valpolicella, Verona, Veneto, Italy |
Biosparite limestone with abundant large benthic forams, algal nodules and grains, and molluscan debris. |
254 |
Lumachella di Vialeta, from Vialeta, Verona, Veneto, Italy |
Synsedimentary breccia of fossiliferous bioclast-rich microsparite limestone; the matrix is intraclast-rich with spar cement. |
230 |
Lumachella nera, locality unknown |
Fossiliferous biosparite limestone with articulate brachiopods (pentamerids?, some wholly or partially spar-infilled), solitary corals, and crinoid debris. It is of Upper Palaeozoic age. |
228 |
Lumachella orientale, from Henchir Kasbat (the ancient Thuburbo Maius), Tunisia |
Fossiliferous biosparite limestone. A lumachelle of rolled, predominantly bivalve debris, recrystallised in part, and with subsidiary other skeletal debris. |
229 |
Lumachella orientale, from Henchir Kasbat (the ancient Thuburbo Maius), Tunisia |
Fossiliferous biosparite limestone. A lumachelle of rolled, predominantly bivalve debris, recrystallized in part, and with subsidiary other skeletal debris. |
226 |
Lumachella rosea, from Kairouan, Tunisia |
Middle Eocene nummulitic limestone. A fossiliferous biomicrite with abundant nummulites, subsidiary sponge, mollusc, and serpulid debris. Fractures are calcite-filled. |
232 |
Lumachella rosea, from Kairouan, Tunisia |
Middle Eocene nummulitic limestone. A fossiliferous biomicrite with abundant nummulites, subsidiary sponge, mollusc and serpulid debris. |
292 |
Lumachella rossa di Milano, from Milan, Lombardy, Italy |
Limestone. Burrowed fossiliferous micrite crowded with molluscan and other skeletal debris. It is possibly part of a hard ground. |
266 |
Lumachella rossa di Verona, from Verona, Veneto, Italy |
Limestone. The coarse-grained part of this bio-pel sparite has coated bioclasts (forams, shell fragments, algal fragments) with some molluscan debris. The fine-grained part is a fossiliferous micrite with large bioclasts of the above, together with whole and fragmentary spar-replaced bivalves. Note the colour banding normal to bedding, and the spar-filled fractures. |
231 |
Lumachellone antico, locality unknown |
Limestone; fossiliferous biosparite with large gastropods, perhaps Actaeonellid gastropods. |
50 |
Mandolà di monte Baldo, from Monte Baldo, Verona, Veneto, Italy |
Nodular/burrowed bioclast-rich microsparite limestone with stylolites. |
49 |
Mandolà di Sant'Ambrogio di Valpolicella, nembro rosato, from San Ambrogio di Valpolicella, Verona, Veneto, Italy |
Burrowed nodular biomicrite limestone crowded with skeletal grains, and with stylolite development around the nodules. Dark brown area is wax filler. |
200 |
Mandolato di Carteletto, from the area north of Verona, perhaps Castelletto di Brenzone, Verona, Veneto, Italy; or from Brentónico, Trentino, Trentino-Alto Adige, Italy |
Fossiliferous burrowed biomicrite limestone crowded with bioclasts, spar-filled bivalve and gastropod shells. Colour mottling is diagenetic. |
428 |
Mandolato di Lubiara, nembro rosato, from Lubiara, Caprino Veronese, Verona, Veneto, Italy |
Upper Jurassic or Cretaceous burrowed nodular biomicrite limestone crowded with skeletal grains. Note the extersitu stylolite development. |
195 |
Mandolato di Torbe, from Torbe, Verona, Veneto, Italy |
Pelagic limestone. Burrowed nodular biomicrite crowded with skeletal grains, and with extersitu stylolite development. Dark brown is filler/polishing compound. |
516 |
Mandolato di Verona, from Verona, Veneto, Italy |
Limestone. A burrowed biomicrite with abundant planktonic forams and calcispheres, cut by a calcite-filled fracture system and stylolites. |
184 |
Marmo bianco dell'Alpi from the Alps |
Medium-grained dolomite marble, very heavily fractured, the fractures infilled with transparent calcite with brown ferruginous tinting. |
17 |
Marmo bianco di Fuligno, from Foligno, Perugia, Umbria, Italy |
Burrowed micritic limestone, heavily fractured and stylolitised. |
21 |
Marmo bianco di Malcesine, from Malcesine, Verona, Veneto, Italy |
Fine-grained limestone (micrite/microsparite) with burrows and scattered large bioclasts, including the aptychi of ammonites. Probably Cretaceous age. |
20 |
Marmo bianco di Parma, from Parma, Italy (not confirmed) |
White fine-grained limestone (micrite/micosparite) with abundant tiny bioclasts including calispheres/radiolarians, and with prominent stylolites. |
10 |
Marmo bianco di Pont Canavese, from Pont Canavese, Turin, Piedmont, Italy |
Medium-grained calcite marble |
137 |
Marmo bianco e giallo, breccia nuvolata, locality unknown. |
A fractured, stylolitised recrystallised limestone or marble, with Liesegang rings of ferruginous colouring. |
60 |
Marmo carnagione di Camerino; Camerino, Macerata, Marches, Italy may be the correct locality. |
A pink pelagic limestone from the Scaglia Rossa Formation (Upper Cretaceous-Eocene). It is a bioturbated biomicrite crowded with planktonic forams and calcispheres with some echinoderm and molluscan debris. |
58 |
Marmo carnagione di Perugia, perhaps from Monte Malbe, near Corciano, Perugia, Umbria, Italy. |
Pelagic limestone from the Upper Cretaceous to Eocene Scaglia Rossa Formation. A bioturbated fossiliferous biomicrite crowded with planktonic forams, calcispheres, and other small bioclasts. It is crossed by slender healed fractures, and stylolites. |
54 |
Marmo carnagione di Terni, perhaps from the province of Terni, Italy |
Limestone, probably from the Scaglia Rossa Formation (Upper Cretaceous). A bioturbated fossiliferous biomicite with abundant tiny planktonic forams and calcispheres. Bioclasts are calcite filled. Many sub-parallel slender calcite-filled fractures are evident, as are a few manganese oxide dendrites. |
55 |
Marmo carnagione, marmo cannellino chiaro, probably from the Umbria or Marches regions of the Apennines, Italy |
Pelagic limestone from the Scaglia Rossa Formation (Upper Cretaceous-Eocene), mottled grey with a rich fauna of foraminifera and other plankton. |
56 |
Marmo carnagione, marmo cannellino scuro, probably from the Umbria or Marches regions of the Apennines, Italy |
Pelagic limestone from the Upper Cretaceous to Eocene Scaglia Rossa Formation. A bioturbated fossiliferous biomicrite with abundant planktonic forams, calcispheres and other skeletal debris. It has calcite filled structures and stylolites, and pink coloration constrained by a slender calcite-cemented fracture ('paesina' effect). |
53 |
Marmo carnagione, persichino di Mazzurega, from Mazzurega, near Fumane, Verona, Veneto, Italy |
Limestone from the Upper Cretaceous Scaglia Rossa Formation. A bioturbated fossiliferous biomicrite with abundant planktonic forams and calcispheres, and with a few stylolites. |
51 |
Marmo carnagione, ‘rosetta di Bergamo’; the province of Bergamo, Italy, is not confirmed as the locality. |
Medium-grained white calcite marble. A metamorphosed sparite limestone preserving evidence of burrowing. It is almost white; the pink tint comes from discoloured grain-filler. |
268 |
Marmo castagne petrificate di Milano, from Milan, Lombardy, Italy |
Mesozoic fossiliferous burrowed micritic limestone crowded with terebratulid brachiopods, of which some are spar-infilled. It has prominent stylolites. |
150 |
Marmo cenerino di Monte Bolca, from Monte Bolca, Val d'Illasi, Verona, Veneto, Italy |
Largely recrystallised limestone with relict larger benthic forams (alveolines). It is heavily styolitised. |
263 |
Marmo cenerino di Monte Bolca, from Monte Bolca, Val d'Illasi, Verona, Veneto, Italy |
A well-sorted bioclastic limestone with micrite matrix. |
277 |
Marmo conchigliare delle Alpi, from the Alps |
A calcarenite, probably of Tertiary age, with molluscan, algal, polychaete and other bioclasts, and common small benthic forams. |