Classification of Petersite-(Y) |
| IMA status: | Approved 1981 |
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| Strunz 8th edition ID: | 7/D.53-10
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| Nickel-Strunz 10th (pending) edition ID: | 8.DL.15
8 : PHOSPHATES, ARSENATES, VANADATES D : Phosphates, etc. with additional anions, with H2O L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1 |
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| Dana 8th edition ID: | 42.5.2.1
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN 5 : (AB)7(XO4)3Zq·xH2O |
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| Hey's CIM Ref.: | 19.4.10
19 : Phosphates 4 : Phosphates of Ca |
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| mindat.org URL: | http://www.mindat.org/min-3175.html Please feel free to link to this page. |
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Type Occurrence of Petersite-(Y) |
| Type Locality: | Laurel Hill (Snake Hill; Penetentiary Quarry), Secaucus, Hudson Co., New Jersey, USA |
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Physical Properties of Petersite-(Y) |
| Colour: | yellowish green |
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| Streak: | white |
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| Hardness (Mohs): | 3 - 4 |
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| Cleavage: | None Observed |
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Crystallography of Petersite-(Y) |
| Crystal System: | Hexagonal |
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Optical Data of Petersite-(Y) |
| Type: | Uniaxial (+) |
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| RI values: | nω = 1.666 nε = 1.747 |
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| Maximum Birefringence: | δ = 0.081
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | High |
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Chemical Properties of Petersite-(Y) |
| Formula: | | (Y,Ce,Nd)Cu | | [(OH) | | |(PO | | ) | | ] · 3H | | O |
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| Essential elements: | Ca, Cu, H, O, P |
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| All elements listed in formula: | Ce, Cu, H, Nd, O, P, Y |
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Relationship of Petersite-(Y) to other Species |
| Related to: | Mixite Group |
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| Related Minerals - Nickel-Strunz Grouping): | | 8.DL.05 | Foggite | | | 8.DL.10 | Cyrilovite | | | 8.DL.10 | Millisite | | (Na,K)CaAl | | [(OH) | | |(PO | | ) | | ] · 3H | | O |
| | 8.DL.10 | Wardite | | | 8.DL.15 | Agardite-(Nd) | | (Nd,La,Ce)Cu | | [(OH) | | |(AsO | | ) | | ] · 3H | | O |
| | 8.DL.15 | Agardite-(Y) | | (Y,Ca)Cu | | [(OH) | | |(AsO | | ,HAsO | | )|(AsO | | ) | | ] · 3H | | O |
| | 8.DL.15 | Agardite-(Ce) | | | 8.DL.15 | Agardite-(La) | | (La,Ce)Cu | | [(OH) | | |(AsO | | ) | | ] · 3H | | O |
| | 8.DL.15 | Goudeyite | | (Al,Y)Cu | | [(OH) | | |(AsO | | ) | | ] · 3H | | O |
| | 8.DL.15 | Mixite | | | 8.DL.15 | Zálesíite | | (Ca,Y)Cu | | [(OH) | | |(HAsO | | ,AsO | | )|(AsO | | ) | | ] · 3H | | O |
| | 8.DL.15 | Plumboagardite | | (Pb,REE,Ca)Cu | | [(OH) | | |(HAsO | | ,AsO | | )|(AsO | | ) | | ] · 3H | | O |
| | 8.DL.15 | Calciopetersite | | CaCu | | [(OH) | | |HPO | | |(PO | | ) | | ] · 3H | | O |
| | 8.DL.20 | Cheremnykhite | | | 8.DL.20 | Dugganite | | | 8.DL.20 | Kuksite | | | 8.DL.20 | Wallkilldellite-Mn | | | 8.DL.20 | Wallkilldellite-(Fe) | | (Ca,Cu) | | Fe | | [(OH,O) | | |(AsO | | ,SiO | | )] | | · 18H | | O |
| | 8.DL.20 | Wallkilldellite | |
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| Related Minerals - Hey's Index Grouping: | |
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Other Names for Petersite-(Y) |
| Synonyms: | |
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| German 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 Petersite-(Y) |
| Reference List: | Peacor, D. R. & Dunn, P. J. (1982): Petersite, a REE and phosphate analog of mixite. American Mineralogst: 67: 1039-1042.
Olmi, F., Sabelli, C., Trosti Ferroni, R. (1991): A contribution to the crystal chemistry of mixite group minerals from Sardinia (Italy). Neues Jahrbuch für Mineralogie, Monatshefte, 1991, 487-499.
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Internet Links for Petersite-(Y) |
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| External Links: | Look for Petersite-(Y) on WebmineralLook for Petersite-(Y) on Athena MineralogyLook for Petersite-(Y) on WikipediaLook for Petersite-(Y) on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Petersite-(Y) in the Natural History Museum (London) online cataloguePetersite-(Y) details from Handbook of Mineralogy (PDF) |
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Localities for Petersite-(Y) |
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