Classification of Alamosite |
| IMA status: | Valid - first described prior to 1959 (pre-IMA) - "Grandfathered" |
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| Strunz 8th edition ID: | 8/F.32-10
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| Nickel-Strunz 10th (pending) edition ID: | 9.DO.20
9 : SILICATES (Germanates) D : Inosilicates O : Inosilicates with 7-, 8-, 10-, 12- and 14-periodic chains |
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| Dana 8th edition ID: | 65.7.1.1
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1) 7 : Single-Width Unbranched Chains, W=1 with chains P > 7 |
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| Hey's CIM Ref.: | 14.13.1
14 : Silicates not Containing Aluminum 13 : Silicates of Pb |
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| mindat.org URL: | http://www.mindat.org/min-93.html Please feel free to link to this page. |
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Type Occurrence of Alamosite |
| Type Locality: | Alamos, Mun. de Alamos, Sonora, Mexico |
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| Year of Discovery: | 1909 |
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Physical Properties of Alamosite |
| Colour: | Colourless, white |
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| Streak: | white |
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| Hardness (Mohs): | 4½ |
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| Cleavage: | Perfect |
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Crystallography of Alamosite |
| Crystal System: | Monoclinic |
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| Cell Parameters: | a = 12.24Å, b = 7.05Å, c = 11.23Å β = 113.12° |
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| Ratio: | a:b:c = 1.736 : 1 : 1.593 |
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| Unit Cell Volume: | V 891.23 ų (Calculated from Unit Cell) |
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Optical Data of Alamosite |
| Type: | Biaxial (-) |
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| RI values: | nα = 1.947 nβ = 1.961 nγ = 1.968 |
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| 2V: | Measured: 65° , Calculated: 70° |
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| Maximum Birefringence: | δ = 0.021
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Very High |
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| Dispersion: | relatively weak |
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Chemical Properties of Alamosite |
| Formula: | |
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| Essential elements: | O, Pb, Si |
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| All elements listed in formula: | O, Pb, Si |
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| Common Impurities: | Al,Fe,Mn,Ca |
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Relationship of Alamosite to other Species |
| Related Minerals - Nickel-Strunz Grouping): | |
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| Related Minerals - Hey's Index Grouping: | |
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Other Names for Alamosite |
| German names: | |
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| Russian names: | |
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| Spanish names: | |
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Other Information |
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
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References for Alamosite |
| Reference List: | Zeitschrift für Kristallographie: 126: 98-111.
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Internet Links for Alamosite |
| Search Engines: |
Look for Alamosite on Google
Look for Alamosite images on Google |
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| External Links: | Look for Alamosite on WebmineralLook for Alamosite on Athena MineralogyLook for Alamosite on WikipediaLook for Alamosite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Alamosite in the Natural History Museum (London) online catalogueAlamosite details from Handbook of Mineralogy (PDF) |
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| Mineral Dealers: | Buy Fine Minerals from mineralsweb.comSearch for Alamosite on minvision.comWendel Minerals - Auktion & ShopLapis Mineral MagazinRare and Unusual minerals at Mineralogical Research CompanyBuy Minerals and Crystals from Crystalarium.comSearch for Alamosite at Thames Valley MineralsWright's Rock Shop - excellent mineral specimens since 1970Find Alamosite on www.crystalclassics.co.ukFine Minerals from Dan Weinrich MineralsBuy from David K Joyce mineralsWilensky Fine Minerals |
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| Jobs: | Mining & Geology Jobs |
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Localities for Alamosite |
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