736 |
Calcedonio di Volterra, Diaspro di Monterufoli, from Monterufoli, near Pomarance, Pisa, Tuscany, Italy |
Brecciated jasper; relatively unfractured large yellowish clasts, many with halos of yellow goethite banded with cream-coloured microcrystalline quartz. Matrix further away from clasts is colourless-milky agate. |
740 |
Calcedonio di Volterra, Diaspro di Monterufoli, from Monterufoli, near Pomarance, Pisa, Tuscany, Italy |
Brecciated grey-white chalcedony, agate in part; many clasts have halos of yellow goethite banded with cream-coloured microcrystalline quartz, the latter present elsewhere as matrix. |
754 |
Calcedonio di Volterra, Diaspro di Monterufoli, from Monterufoli, near Pomarance, Pisa, Tuscany, Italy |
Off-white chert clasts in a partially silicified, partly calcite or more probably dolomite matrix. |
758 |
Calcedonio di Volterra, Diaspro di Monterufoli, from Monterufoli, near Pomarance, Pisa, Tuscany, Italy |
Breccio conglomerate of siliceous jaspery clasts in a groundmass of partially silicified dolomitic limestone, cavities infilled with colourless to grey agate. |
759 |
Calcedonio di Volterra, Diaspro di Monterufoli, from Monterufoli, near Pomarance, Pisa, Tuscany, Italy |
Fractured, rounded jaspery clasts, haloes with banded colourless/ferruginous quartz, in a matrix of colourless granular dolomite. |
93 |
Campan vert, cipollino verde mandolato, from the Haute Pyrénées (probably Pont de la Taulé), France |
Weakly metamorphosed Lower Devonian nodular limestone, the white fine-grained calcareous nodules have heavily chloritised rims in a paler green chlorite/calcite groundmass. |
9 |
Carrara marble, marmo di Carrara, statuario, almost certainly from Cararra,Tuscany Italy. |
Fine-grained calcite marble |
159 |
Carrara ordinario, from the Apuan Alps, and probably Carrara, Massa e Carrara, Tuscany, Italy |
Fine to medium-grained calcite marble speckled with crystals and grains of other minerals including the iron sulphide, pyrite. |
185 |
Ceppo scuro del lago di Como, from Lake Como, Como, Lombardy, Italy |
Fine grained calcarenite with some primary lamination and signs of soft sediment deformation. |
724 |
Chalcedony, locality unknown |
Chalcedony (cryptocrystalline quartz) with small cavities lined with quartz crystals. There is no evidence of agate banding. |
922 |
Chiampo perlato, from Chiampo area, Vicenza, Veneto, Italy |
Middle Eocene nummulitic limestone, note solution-modified and stylolized fractures. |
92 |
Cipollino Apuano, from Alta Versilia, Tuscany, Italy |
Strongly sheared marble. Banding of cream (iron-stained calcite) and green-grey (granular calcite with patchy chlorite/talc) portions at low angle to shear planes, results in tight folding of bands. |
86 |
Cipollino mandolato, griotte, from Haute Pyrénées, France; and probably from the Campan valley. |
Lower Devonian tectonised and sheared red nodular limestone, with stylolites and white calcite-filled veins. |
94 |
Cipollino mandolato, most probably rosé vif des Pyrénées, from the area west of Esplas-de-Sérou, Ariège, Midi-Pyrénées, France |
Weakly metamorphosed Lower Devonian nodular limestone, somewhat sheared and largely recrystallised; with chlorite coating the nodules. |
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. |
144 |
Cipollino nero, most probably from Mili, Karystos, Euboea, Central Greece |
Banded marble (metamorphosed impure limestone). Fine-grained grey layers have a shape fabric calcite which appears axial-planar to folded layering. Fabric is probably a lineation, although, on specimen edge, the grains are equant. |
95 |
Cipollino rosso, from Kiyi Kislacik, Milas, Mugla Province, Turkey |
Fine to medium-grained folded impure limestone or calcite marble, some bands rich in red hematite. |
96 |
Cipollino rosso, from Kiyi Kislacik, Milas, Mugla Province, Turkey |
Fine to medium-grained folded impure limestone, now weakly metamorphosed to marble but the abundant debris suggesting it was in part a calcarenite. |
97 |
Cipollino rosso, from Kiyi Kislacik, Milas, Mugla Province, Turkey |
A fine to medium-grained folded banded calcite marble, some bands rich in red hematite, others are coloured by grey graphite. A weakly metamorphosed impure limestone. |
89 |
Cipollino verde, from near Karystos, Euboea, Central Greece |
Folded medium-grained calcite marble with layers rich in green iron-bearing silicate minerals including chlorite and epidote. |
90 |
Cipollino verde, from near Karystos, Euboea, Central Greece |
Folded medium-grained calcite marble with layers rich in green iron-bearing silicate minerals including chlorite and epidote. |
911 |
Cipollino verde, locality unknown |
Heterogeneously deformed very coarse-grained metagabbro with ophitic texture locally preserved in lenticular low-strain domains. |
213 |
Colombino della Punta Pina, from Punta Pina, island of Elba, Livorno, Tuscany, Italy |
Brecciated, micritic limestone with extensive calcite-filled fractures. |
212 |
Colombino roseo dell'Elba, from Punta Pina, island of Elba, Livorno, Tuscany, Italy |
Pink micritic limestone, altered to yellow where it is crossed by two generations of calcite-filled fractures. It has disseminated black manganese oxides and pyrite. |
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. |
440 |
Corallina di Pisa, from Pisa, Tuscany, Italy |
Breccia of fine-grained calcite marble clasts. |
964 |
Corsica, from Corsica, France |
Metagabbro. A weakly metamorphosed gabbroic pegmatite, with green diopside (pyroxene) and brighter green aggregates of acicular actinolite-tremolite (amphibole) crystals. Some black grains of an oxide mineral are present. |
858 |
Corsican granite, granito di Corsica, from Corsica, France |
Pale grey quartz porphyry. White phenocrysts of feldspar with brownish alteration, glassy quartz and dark green uralitised amphibole in very fine-grained grey groundmass. Phenocrysts tend to form clusters. |
864 |
Corsican granite, granito di Corsica, from Corsica, France |
Rather fine-grained granitic gneiss with slightly discordant coarse-granitoid veins (perhaps migmatite leucosomes) . It is variably reddened and cut by late fractures near which feldspars have been altered to white spots. Veins near corner of specimen are leek green. |
869 |
Corsican granite, granito di Corsica, from Corsica, France |
Monzonite. Anhedral pink potash feldspar, greenish altered plagioclase and interstitial green amphibole. |
887 |
Corsican granite, granito di Corsica, from Corsica, France |
Porphyritic microdiorite, probably plagioclase/biotite, over much of the specimen. Replacement of feldspar by aggregates of epidote is gradational in places, but sharp across a 1mm wide sheer zone or veinlet. |
897 |
Corsican granite, granito di Corsica, from Corsica, France |
Granite gneiss with large porphyroblasts of potassium feldspar. |
199 |
Corso della mola di S.Ambrogio, from the province of Verona, Veneto, Italy; but probably not from Sant'Ambrogio di Valpolicella |
Limestone; a fossiliferous biomicrite crowded with bioclasts including planktonic forams. It is heavily stylolitised. |
187 |
Cottanello, from Cottanello, Rieti, Lazio, Italy |
Cretaceous-Eocene pelagic limestone. A brecciated biomicrite with abundant planktonic forams and calcispheres. Calcite-filled fractures and voids are cut by late stage red clay-filled stylolites. |
287 |
Derbyshire fossil marble, from Derbyshire, England |
Carboniferous Limestone; Lower Carboniferous burrowed fossiliferous micrite crowded with skeletal debris: bryozoans, crinoids, benthic forminifera etc. |
288 |
Derbyshire fossil marble, from Miller's Dale, near Tideswell, Derbyshire, England |
Carboniferous Limestone; Lower Carboniferous coral (Lithostrotion) limestone |
289 |
Derbyshire fossil marble, from Miller's Dale, near Tideswell, Derbyshire, England |
Carboniferous Limestone; Lower Carboniferous coral (Lithostrotion) limestone |
284 |
Derbyshire fossil marble, from Monyash, Derbyshire, England; perhaps Ricklow quarry. |
Carboniferous Limestone; Lower Carboniferous crinoidal limestone with spar cement cut by styoltized calcite-filled fractures. |
286 |
Derbyshire fossil marble, from One Ash Grange, near Monyash, Derbyshire, England; perhaps from the nearby Brecks or Bricks quarry. |
Carboniferous Limestone; Lower Carboniferous bioturbated fossiliferous micrite with bryozoan algae, brachiopods and other skeletal debris. It is extensively stylolitised; the stylolites having sparry hematitic fills. |
285 |
Derbyshire fossil marble, from Sheldon Moore, Derbyshire, England |
Carboniferous Limestone; Lower Carboniferous crinoidal limestone with intraclasts, and with suturing of grain contacts. |
372 |
Derbyshire rosewood marble, from Nettler Dale, near Ashford, Derbyshire, England |
Limestone; a Carboniferous laminated algal biomicrite. |
373 |
Derbyshire rosewood marble, from Nettler Dale, near Ashford, Derbyshire, England |
Limestone; a Carboniferous laminated algal biomicrite. Note synsedimentary brecciation of algal laminites. |
375 |
Derbyshire 'alabaster', Poole's Cavern 'alabaster', from Poole's Cavern, near Buxton, Derbyshire, England |
Speleothem calcite with irregular aggregates of metallic grey galena crystals cementing brecciated Carboniferous Limestone. The limestone contains abundant crinoids, bryozoa and other bioclasts. |
376 |
Derbyshire 'alabaster', from Middleton-by-Wirksworth, Derbyshire, England; perhaps the Bondog-Hole mine |
Very pure colourless banded speleothem calcite with a small area of the host Carboniferous Limestone. |
743 |
Diaspro antico, locality unknown |
Siliciified limestone or ironstone rich in relic shells of microfossils, and crossed by many slender fractures filled with colourless quartz. Some stylolites are present. |
744 |
Diaspro antico, locality unknown |
Brecciated jasper with black-speckled clasts, many with full or partial rims of opaque white chalcedony. Colourless/white/grey agate matrix has patchy yellow speckling, euhedral crystal inclusions of goethite, and minor late-stage crystalline quartz. No sardonyx is present. |
748 |
Diaspro della Tolfa, from Monti della Tolfa, near Civitavecchia, Rome, Lazio, Italy (not confirmed) |
Colourless fine-grained quartz with bands and scattered inclusions of pyrite. Brown areas are filler/polishing compound. Circular aggregates of quartz crystals visible on side of specimen resemble silicified coral. |
749 |
Diaspro della Tolfa, from Monti della Tolfa, near Civitavecchia, Rome, Lazio, Italy (not confirmed) |
Quartzite composed of fine-grained granular quartz with flecks of brown siderite. Cavities contain buff-grey filler. |
753 |
Diaspro delle Alpi, from the Alps |
Green/brown banded jasper; a siliciified limestone or ironstone showing some recognisable tests of microfossils. It is crossed by many slender fractures filled with colourless quartz. Some stylolites and fractures are present. Chlorite inclusions colour the darkest bands. |
979 |
Diaspro delle Alpi, from the Alps |
Poorly sorted breccio-conglomerate with very heavily fractured argillaceous siliceous clasts and a calcarenite cement. Brown is filler/polishing compound. |
751 |
Diaspro delle Alpi, from the Alps (not confirmed) |
Deformed ferruginous chert, markedly dense hematite-rich rock. Fractures are filled with greenish quartz. It might be associated with an ophiolite deposit. |
756 |
Diaspro di Barga, from Barga, Lucca, Tuscany, Italy |
Milky white chalcedony with aggregates of red hematitic inclusions is cut by a rhombohedral network of fine calcite-filled fractures. Later chalcedony/colourless quartz replaces and is coloured by orange brown siderite. Secondary fractures are more sinuous and random. Dark brown areas are filler/polishing compound. |
757 |
Diaspro di Barga, from Barga, Lucca, Tuscany, Italy |
A breccia of brown jaspery fragments in colourless crystalline quartz, in turn surrounded by white chalcedony, voids are filled with yellowish crystalline quartz. |
515 |
Diaspro di Volterraio, from Volterraio, island of Elba, Livorno, Tuscany, Italy |
A siliceous argillaceous deposit, perhaps a deep sea red clay. |
164 |
Diaspro tenero di Sicilia, libeccio, from Bisaquino, Palermo, Sicily, Italy |
Slumped green pelagic limestone with perhaps submarine cement infills of neptunian dykes. Note stylolites. Less fractures than the similar specimen no.171. |
165 |
Diaspro tenero di Sicilia, libeccio, from Castronuovo di Sicilia, Palermo, Sicily, Italy |
Limestone, perhaps resedimented; micrite/microsparite crowded with tiny bio/intraclasts and showing traces of grading in places. Note extensive solution seams, stylolites and calcite-filled fractures. |
166 |
Diaspro tenero di Sicilia, libeccio, from Feudo Lalia, Alia, Palermo, Sicily, Italy |
Heavily fractured stylolitised birds-eye limestone with extensive fenestral fabric (calcite-filled vugs). Matrix is fossiliferous peloidal micrite/microspar. |
161 |
Diaspro tenero di Sicilia, libeccio, from Gibellina Vecchia, Trapani, Sicily, Italy |
Recrystallised limestone; originally probably a noular micrite/microspar, voids filled by sparry calcite. Buff-coloured area are filler. |
176 |
Diaspro tenero di Sicilia, libeccio, from Rocca delli Panni, Sicily, Italy |
Syn-sedimentary limestone breccia with voids filled by submarine cement. |
171 |
Diaspro tenero di Sicilia, libeccio, from Sicily, Italy; perhaps Cefalù area |
This appears to be submarine cement infills of neptunian dykes in a pelagic green limestone. It is heavily fractured. |
174 |
Diaspro tenero di Sicilia, libeccio, from Trapani, Sicily, Italy |
Syn-sedimentary slump breccia with voids infilled by submarine cement. Note pervasive calcite-filled fractures. |
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. |
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. |
163 |
Diaspro tenero di Sicilia, from Capo Gallo, Palermo, Sicily, Italy |
Syn-sedimentary breccia with fragments of Triassic-Jurassic limestone (dark) and pink Jurassic-Cretaceous limestone. |
162 |
Diaspro tenero di Sicilia, from Castellammare del Golfo, Trapani, Sicily, Italy |
Syn-sedimentary breccia with fragments of Triassic-Jurassic limestone (dark) and pink Jurassic-Cretaceous limestone. |
173 |
Diaspro tenero di Sicilia, from Castellammare, Trapani, Sicily, Italy |
Bioturbated limestone, most probably of the Cretaceous-Eocene Scaglia Rossa Formation. It is a fossiliferous pelagic biomicrite crowded with planktonic forams and calcispheres together with some molluscan debris. Note the calcite-filled fractures. |
170 |
Diaspro tenero di Sicilia, from River Verdura or Sosio, perhaps at San Carlo, Palermo, Sicily, Italy |
Limestone breccia. A syn-sedimentary breccia with matrix of pink Jurassic-Cretaceous pelagic limestone. |
206 |
Diaspro tenero di Sicilia, from Sicily, Italy |
Limestone; fossiliferous burrowed micrite/microsparite with red burrow infilling, perhaps part of a hard ground. Note the calcite-filled fractures and solution seams. |
167 |
Diaspro tenero di Sicilia, from Taormina, Messina, Sicily, Italy |
Synsedimentary limestone breccia. |
168 |
Diaspro tenero di Sicilia, from Taormina, Messina, Sicily, Italy |
Fine-grained red limestone with synsedimentary slump folds. |
169 |
Diaspro tenero di Sicilia, from Taormina, Messina, Sicily, Italy |
Re-sedimented limestone of the Rosso Ammonitico Formation. It is heavily stylolitised, and the colour is diagenetic. |
177 |
Diaspro tenero di Sicilia, from Taormina, Messina, Sicily, Italy |
Slumped syn-sedimentary limestone breccia. |
178 |
Diaspro tenero di Sicilia, from Taormina, Messina, Sicily, Italy |
A fractured Rosso ammonitico red limestone with prominent stromatactis cavities filled with grey and white calcite. It has stylolites and white calcite-filled veins. |
172 |
Diaspro tenero di Sicilia, from Trapani, Sicily, Italy |
Limestone. Syn-sedimentary limestone breccia cut by a neptunian dyke. |
175 |
Diaspro tenero di Sicilia, from Trapani, Sicily, Italy |
Tertiary limestone. A bioturbated fossiliferous pelagic biomicrite crowded with planktonic forams and calcispheres, with some molluscan debris. Note calcite-filled fractures. |
65 |
Duke's red marble, from Newhaven, Derbyshire, England |
Recrystallised limestone of Lower Carboniferous age, containing abundant hematitic (and occasional limonitic) capillary inclusions dispersed in colourless calcite. |
294 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Medium-grained compact banded travertine, almost entirely composed of calcite, but note slender orange ferruginous bands often seen in this stone. |
295 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Medium-grained compact banded travertine, almost entirely composed of calcite. Dark yellow-brown wax filler covers a very narrow ferruginous orange-brown band. |
296 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Very coarse-grained compact banded travertine, almost entirely composed of calcite. |
297 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Coarse-grained compact banded travertine, almost entirely composed of calcite. |
298 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Medium-grained compact banded travertine, very pure and almost entirely composed of calcite. |
299 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Medium-grained compact banded travertine, almost entirely composed of calcite; note slender orange ferruginous bands often seen in this stone. Grey band at one corner is a filler. |
300 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Coarse-grained compact banded travertine, almost entirely composed of calcite; note slender orange ferruginous bands often seen in this stone. |
312 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Fine to medium-grained compact banded travertine, almost entirely composed of calcite; note presence of slender orange ferruginous bands which are quite characteristic of the Egyptian stone. |
313 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Fine to medium-grained compact banded travertine, almost entirely composed of calcite; note presence of slender orange ferruginous bands which are quite characteristic of the Egyptian stone. |
323 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Fairly coarse-grained compact banded travertine, almost entirely composed of calcite; the slender orange ferruginous bands are often seen in the alabaster of the Nile valley. |
325 |
Egyptian alabaster, alabastro cotognino, from one of several quarries at Hatnub, Mallawi, and other locations in the Nile valley, Eastern desert, Egypt. |
Very coarse-grained compact banded travertine; pure calcite apart from a few slender orange ferruginous bands. |
196 |
Fior di persico, from Seravezza, Lucca, Tuscany, Italy |
Marble; a tectonised and sheared limestone breccia-conglomerate. |
954 |
Fior di pesco Apuano from Stazzema, near Seravezza, Lucca, Tuscany, Italy |
Marble breccia; a sheared and tectonised limestone conglomerate. |
488 |
Fior di pesco Apuano, from Seravezza, Lucca, Tuscany, Italy |
Sheared marble breccia; perhaps a tectonised burrowed/nodular limestone. |
202 |
Fior di pesco Apuano, from Stazzema, near Seravezza, Lucca, Tuscany, Italy |
Marble breccia - a tectonised, sheared limestone, rich in hematite evident as red colouring and metallic grey grains. |
955 |
Fior di pesco Apuano, from Stazzema, near Seravezza, Lucca, Tuscany, Italy |
Heavily fractured calcite marble breccia; a sheared and tectonised limestone conglomerate. |
118 |
Fior di pesco (fior di persico), from Eretria, Euboea, Central Greece |
A marble tectonite of Triassic age. A sheared, deformed calcite marble breccia. |
119 |
Fior di pesco (fior di persico), from Eretria, Euboea, Central Greece |
Triassic tectonite. A sheared calcite marble breccia with late-stage calcite-filled veins and fractures. |
120 |
Fior di pesco (fior di persico), from Eretria, Euboea, Central Greece |
Triassic tectonite. A sheared calcite marble breccia with late-stage calcite-filled veins and fractures. |
121 |
Fior di pesco (fior di persico), from Eretria, Euboea, Central Greece |
A slumped/sheared breccia of Triassic age, with clasts of laminated marble, cut by calcite-filled fractures and late-stage stylolites. |
122 |
Fior di pesco (fior di persico), from Eretria, Euboea, Central Greece |
Hematite-rich calcite marble, brecciated, with white calcite-filled veins. Triassic age. |
205 |
Fior di pesco (fior di persico), from Eretria, Euboea, Central Greece |
Triassic tectonite. A sheared marble breccia with late-stage calcite-filled veins and fractures |
916 |
Fior di pesco (fior di persico), from Eretria, Euboea, Central Greece |
Triassic tectonite; a sheared marble with late-stage fractures and solution seams. Dendritic manganese oxides emanate from fractures.
|
539 |
Fluorite with galena and baryte, from Crich, Derbyshire, England |
Hydrothermal vein deposit of colourless to yellow iron-stained fluorite with galena and white crested baryte. Fluorite zoned with inclusions of marcasite/pyrite. |