| Classification |
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| Species: | Opal var: Opal-AN |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Opal-AN data |
| Locality Data: | Click here to view Alzo, Pella, Novara Province, Piedmont, Italy |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 227074 |
| Long-form Identifier: | 1:3:227074:6 |
| GUID (UUID V4): | ac733587-ded8-4827-ad6b-59e518135de2 |
| Nearest other occurrences of Opal-AN |
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| 16.0km (9.9 miles) | ⓘSeula mine, Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 35.4km (22.0 miles) | ⓘGrignaschi Quarry, Cosasca, Trontano, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 40.7km (25.3 miles) | ⓘPuricelli Quarry, Cavagnano, Cuasso al Monte, Varese Province, Lombardy, Italy |
| 45.8km (28.5 miles) | ⓘMadonna d'Ongero, Carona, Lugano, Ticino, Switzerland |
| 51.4km (32.0 miles) | ⓘVerampio-Crego area, Premia, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 59.6km (37.0 miles) | ⓘGischi glacier (incl. Gischihorn), Binn, Goms, Valais, Switzerland |
| 59.7km (37.1 miles) | ⓘHillehorn northeast slope, Chummibort, Grengiols, Östlich Raron, Valais, Switzerland |
| 80.5km (50.0 miles) | ⓘLake Tremorgio, Fiesso, Prato (Leventina), Leventina, Ticino, Switzerland |
| 84.8km (52.7 miles) | ⓘBreccia outcrop, Triebten lake (Trübten lake), Oberaar lake area, Guttannen, Interlaken-Oberhasli, Bern, Switzerland |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | series,carries a sparsevertebrate fauna indicative of an upper Miocene or Lower Pliocene age. At a few places...the saline playa in Fish Lake valley. At this point an old road leads to the east and follows up Cave Springs...material being an intimate mixture of searlesite with carbonates of lime and magnesia and opal. An analysis...C.tvB Spnrxcs Wnsn, Nnv.lol W. F. Foshag,analyst Alzo: CaO MgO NazO K,O BzO: Sioz co, H,O Total 1.10...ferred to. In some specimens these small beads of opal are fairly abundant. In some of the cracks there |  | | Journal (issue) | | PRICES ARE BASED AT $180.00 per ounce, we will make an adjustment of price on day order is shipped. Prices...rockhounds. Elsewhere in this issue, you will find an article about some of the many uses for this versatile..................... 16 A Method for Using Tecopa Opal by F.W. Seasholtz ................................less than 14"x27". The standard Genie comes with an 80 and 220 grit 6"x1~ Galaxy metal-bond diamond grinding...Studio City. Ca. Pl!Ny. .. a tTIIPt I 1 ..... , c..an San Glbriel. Ca. City, Nev. 6 - Martin's Postal |  | | Book (edition) | | publica1ions) 'Third edi1ion'-Forcword. Rev. ed. of: An index of mim:ral species & varie1ics arranged chemically/...of Minemls was published and it soon proved to be an important and standard reference work for mineralogists... The number of known species is now around 3500- an increase of some 600 in the last ten years - and...Embrey obtained an on-line version of the second edition and its appendices by editing an optically-character-read...volume is the third edition (retitled) of M. H. Hey"s An Index of Mineral Species and Varieties Arranged Chemically |
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