Classification of Johnsomervilleite |
| IMA status: | Approved 1979 |
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| Strunz 8th edition ID: | 7/A.08-10
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| Nickel-Strunz 10th (pending) edition ID: | 8.AC.50
8 : PHOSPHATES, ARSENATES, VANADATES A : Phosphates, etc. without additional anions, without H2O C : With medium-sized and large cations |
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| Dana 7th edition ID: | 38.2.9.2 |
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| Dana 8th edition ID: | 38.2.5.2
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES 2 : (AB)5(XO4)3 |
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| Hey's CIM Ref.: | 19.12.31
19 : Phosphates 12 : Phosphates of Mn |
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| mindat.org URL: | http://www.mindat.org/min-2107.html Please feel free to link to this page. |
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Physical Properties of Johnsomervilleite |
| Hardness (Mohs): | 4½ |
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Crystallography of Johnsomervilleite |
| Crystal System: | Trigonal |
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| Cell Parameters: | a = 15Å, c = 42.75Å
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| Ratio: | a:c = 1 : 2.85 |
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| Unit Cell Volume: | V 8,330.08 ų (Calculated from Unit Cell) |
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| Z: | 3 |
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Optical Data of Johnsomervilleite |
| Type: | Uniaxial (+/-) |
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| RI values: | nα = 1.655 nβ = 1.655 |
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| Maximum Birefringence: | δ = 1.655
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Moderate |
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Chemical Properties of Johnsomervilleite |
| Formula: | | {Ca}{Na | | [ ] | | }{Ca | | Na | | }{(Fe | | ,Mg,Mn | | ) | | }[PO | | ] | | |
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| Essential elements: | Ca, Fe, Na, O, P |
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| All elements listed in formula: | Ca, Fe, Mg, Mn, Na, O, P |
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Relationship of Johnsomervilleite to other Species |
| Related Minerals - Nickel-Strunz Grouping): | | 8.AC.05 | Howardevansite | | | 8.AC.10 | Alluaudite | | (Na,Ca)Mn | | (Fe | | ,Mn | | ,Fe | | ,Mg) | | (PO | | ) | | |
| | 8.AC.10 | Arseniopleite | | | 8.AC.10 | Caryinite | | (Na,Pb)(Ca,Na)((Ca,Mn | | )(Mn | | ,Mg,Fe | | )[AsO | | ] | | |
| | 8.AC.10 | Ferroalluaudite | | | 8.AC.10 | Hagendorfite | | | 8.AC.10 | Johillerite | | | 8.AC.10 | Maghagendorfite | | | 8.AC.10 | Nickenichite | | | 8.AC.10 | Varulite | | | 8.AC.10 | Ferrohagendorfite | | | 8.AC.10 | Bradaczekite | | | 8.AC.10 | Yazganite | | | 8.AC.10 | Ferro-alluaudite | | | 8.AC.15 | Bobfergusonite | | | 8.AC.15 | Ferrowyllieite | | (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO | | ) | | |
| | 8.AC.15 | Qingheiite | | | 8.AC.15 | Rosemaryite | | (Na,Ca,Mn)(Mn,Fe | | )(Fe | | ,Mg)Al(PO | | ) | | |
| | 8.AC.15 | Wyllieite | | (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO | | ) | | |
| | 8.AC.15 | Ferrorosemaryite | | | 8.AC.20 | Marićite | | | 8.AC.25 | Berzeliite | | | 8.AC.25 | Manganberzeliite | | | 8.AC.25 | Palenzonaite | | | 8.AC.25 | Schäferite | | | 8.AC.30 | Brianite | | | 8.AC.35 | Vitusite-(Ce) | | | 8.AC.40 | Olgite | | | 8.AC.40 | Bario-olgite | | | 8.AC.45 | Strontiowhitlockite | | | 8.AC.45 | Whitlockite | | | 8.AC.45 | Merrillite | | | 8.AC.45 | Tuite | | | 8.AC.45 | Ferromerrillite | | | 8.AC.50 | Chladniite | | {Ca}{Na | | }{Ca | | Na | | }{(Mg,Fe | | ) | | }[PO | | ] | | |
| | 8.AC.50 | Fillowite | | {Mn | | }{Na | | }{Ca | | Na | | }{(Mn | | ,Fe | | ) | | }[PO | | ] | | |
| | 8.AC.50 | Galileiite | | | 8.AC.50 | Stornesite-(Y) | | {(Y, Ca)}{Na | | [ ] | | }{(Ca,Na) | | }{(Mg,Fe | | ) | | }[PO | | ] | | |
| | 8.AC.50 | IMA2006-006 | | | 8.AC.55 | Harrisonite | | | 8.AC.60 | Kosnarite | | | 8.AC.65 | Panethite | | | 8.AC.70 | Stanfieldite | | | 8.AC.75 | Ronneburgite | | | 8.AC.80 | Tillmannsite | | | 8.AC.85 | Filatovite | |
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| Related Minerals - Hey's Index Grouping: | | 19.12.1 | Metaswitzerite | | | 19.12.2 | Bermanite | | | 19.12.3 | Natrophilite | | | 19.12.4 | Sidorenkite | | | 19.12.5 | Niahite | | | 19.12.6 | Robertsite | | | 19.12.7 | Pararobertsite | | | 19.12.8 | Sinkankasite | | | 19.12.9 | Mangangordonite | | | 19.12.10 | Heterosite | | | 19.12.11 | Purpurite | | | 19.12.12 | Wolfeite | | | 19.12.13 | Triploidite | | | 19.12.14 | Lipscombite | | | 19.12.15 | Frondelite | | | 19.12.16 | Rockbridgeite | | | 19.12.17 | Kryzhanovskite | | | 19.12.18 | Landesite | | Mn | | Fe | | [(OH) | | |(PO | | ) | | ] · (3-x)H | | O |
| | 19.12.19 | Phosphoferrite | | | 19.12.20 | Reddingite | | | 19.12.21 | Earlshannonite | | | 19.12.22 | Hureaulite | | | 19.12.23 | Switzerite | | | 19.12.24 | Laueite | | | 19.12.25 | Pseudolaueite | | | 19.12.26 | Strunzite | | | 19.12.27 | Stewartite | | | 19.12.28 | Alluaudite | | (Na,Ca)Mn | | (Fe | | ,Mn | | ,Fe | | ,Mg) | | (PO | | ) | | |
| | 19.12.29 | Ferroalluaudite | | | 19.12.30 | Fillowite | | {Mn | | }{Na | | }{Ca | | Na | | }{(Mn | | ,Fe | | ) | | }[PO | | ] | | |
| | 19.12.32 | Wicksite | | NaCa | | (Fe | | ,Mn | | ) | | MgFe | | [PO | | ] | | · 2H | | O |
| | 19.12.33 | Dickinsonite-(KMnNa) | | {KNa}{Mn | | [ ]}{Ca}{Na | | }{Mn | | }{Al}[(OH) | | |(PO | | ) | | ] |
| | 19.12.34 | Sarcopside | | | 19.12.35 | Ludlamite | | | 19.12.36 | Graftonite | | | 19.12.37 | Wilhelmvierlingite | | | 19.12.38 | Fairfieldite | | | 19.12.39 | Beusite | | | 19.12.40 | Messelite | | | 19.12.41 | Jahnsite-(CaMnFe) | | | 19.12.42 | Jahnsite-(CaMnMn) | | | 19.12.43 | Jahnsite-(CaMnMg) | | CaMn | | (Mg,Fe | | ) | | Fe | | (PO | | ) | | (OH) | | · 8H | | O |
| | 19.12.44 | Keckite | | (Ca,Mg)(Mn | | ,Zn) | | Fe | | (PO | | ) | | (OH) | | · 2H | | O |
| | 19.12.45 | Stanfieldite | | | 19.12.46 | Laubmannite | | | 19.12.47 | Zodacite | | | 19.12.48 | Hagendorfite | | | 19.12.49 | Maghagendorfite | | | 19.12.50 | Varulite | | | 19.12.51 | Griphite | | Na | | Li | | Ca | | (Mn | | ,Fe | | ,Mg) | | Al | | [(F,OH)|(PO | | ) | | ] | | |
| | 19.12.52 | Attakolite | | (Ca,Sr)Mn(Al,Fe) | | [(OH) | | |(SiO | | ,PO | | )|(HPO | | ,PO | | ) | | ] |
| | 19.12.53 | Arrojadite-(KFe) | | {KNa}{Fe | | [ ]}{Ca}{Na | | [ ]}{Fe | | }{Al}[(OH) | | |HPO | | |(PO | | ) | | ] |
| | 19.12.54 | Lun'okite | | (Mn,Ca)(Mg,Fe,Mn)Al(PO | | ) | | OH·4H | | O |
| | 19.12.55 | Eosphorite | | | 19.12.56 | Ernstite | | (Mn | | ,Fe | | )Al[(OH,O) | | |PO | | ] · H | | O |
| | 19.12.57 | Childrenite | | | 19.12.58 | Bobfergusonite | | | 19.12.59 | Qingheiite | | | 19.12.60 | Whiteite-(CaFeMg) | | Ca(Fe | | ,Mn | | )Mg | | Al | | (PO | | ) | | (OH) | | · 8H | | O |
| | 19.12.61 | Whiteite-(CaMnMg) | | | 19.12.62 | Whiteite-(MnFeMg) | | (Mn | | ,Ca)(Fe | | ,Mn | | )Mg | | Al | | (PO | | ) | | (OH) | | · 8H | | O |
| | 19.12.63 | Rittmannite | | (Mn | | ,Ca)Mn | | (Fe | | ,Mn | | ,Mg) | | (Al,Fe | | ) | | (PO | | ) | | (OH) | | · 8H | | O |
| | 19.12.64 | Zanazziite | | Ca | | (Mg,Fe)(Mg,Fe,Al) | | Be | | [(OH) | | |(PO | | ) | | ] · 6H | | O |
| | 19.12.65 | Samuelsonite | | (Ca,Ba)Ca | | Fe | | Mn | | Al | | [(OH) | | |(PO | | ) | | ] |
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| Related Minerals - Dana Grouping): | |
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Other Names for Johnsomervilleite |
| 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 Johnsomervilleite |
| Reference List: | American Mineralogist (1981): 66: 437.
Mineralogical Magazine (1980): 43: 833-836.
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Internet Links for Johnsomervilleite |
| Search Engines: |
Look for Johnsomervilleite on Google
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| External Links: | Look for Johnsomervilleite on WebmineralLook for Johnsomervilleite on Athena MineralogyLook for Johnsomervilleite on WikipediaLook for Johnsomervilleite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Johnsomervilleite in the Natural History Museum (London) online catalogueJohnsomervilleite details from Handbook of Mineralogy (PDF) |
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| Mineral Dealers: | e-Rocks - Mineral Auctions and SalesHigh-end worldwide specimens & outstanding customer serviceBuy Fine Minerals from mineralsweb.comFabre Minerals - search for Johnsomervilleite specimensTop quality minerals from Kristalle of CaliforniaFind Johnsomervilleite on www.crystalclassics.co.ukWendel Minerals - Auktion & ShopRare and Unusual minerals at Mineralogical Research CompanySearch for Johnsomervilleite at Thames Valley MineralsBuy Minerals and Crystals from Crystalarium.comFine Minerals from Dan Weinrich MineralsThe Arkenstone - Fine Minerals |
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Localities for Johnsomervilleite |
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