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zanazziite

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Journal Article
Published: 01 April 2019
Mineralogical Magazine (2019) 83 (2): 261–267.
... das Laranjeiras County, Minas Gerais State, Brazil, where it occurs in an albite pocket with other secondary phosphates, including beryllonite, atencioite and zanazziite, in a granitic pegmatite. It occurs as colourless acicular crystals <10 µm wide and <100 µm long that form compact radiating...
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Journal Article
Published: 26 June 2017
European Journal of Mineralogy (2017) 29 (5): 923–930.
..., eosphorite, zanazziite, greifenstenite, guimarãesite, ushkovite, saléeite and moraesite. The mineral is transparent and colourless, with a vitreous lustre; it is non-fluorescent, brittle, and its streak is white. The estimated Mohs hardness is 4–5, and the calculated density is 3.05 g/cm 3 . Wilancookite...
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Image
Mössbauer spectra and Fe coordination polyhedra, with conventions as in  Fi...
Published: 01 May 2014
. 2009 ) are members of the roscherite group; roscherite has Fe 3+ in only M1 and Fe 2+ in both M1 and M2. Zanazziite has Fe 2+ and Fe 3+ , both assigned to M2. The spectrum of satterlyite ( Kolitsch et al. 2002 ) MDD18 is dominated by two Fe 2+ doublets in the M1 and M2 sites and a very small Fe 3
Journal Article
Published: 01 August 2014
European Journal of Mineralogy (2014) 26 (4): 589–595.
... minerals. Mineral Unit-cell parameters Crystal-chemical formulae for structurally studied samples References Monoclinic members: roscherite subgroup (space group C2/c ) Zanazziite a = 15.874 Å, b = 11.854 Å, c = 6.605 Å, β = 95.21° Ca 2 [Mg 0.61 Fe 0.40 □ 0.99 ] [Mg 2.38 Fe 2...
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Journal Article
Published: 01 October 2007
The Canadian Mineralogist (2007) 45 (5): 1263–1273.
... not introduce a new name for it. The name zanazziite was created for the Mg-dominant species by Leavens et al. (1990) . They also cited a triclinic Fe–Mg member of this group. The name greifensteinite was introduced for the Fe 2+ species by Chukanov et al. (2002) . Chukanov et al. (2006) described...
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Journal Article
Published: 01 January 2008
American Mineralogist (2008) 93 (1): 1–6.
... and 1 mm in diameter. The faces making up the sides of the “barrels” are curved (Fig. 1 ). The crystals are similar to those of zanazziite ( Leavens et al. 1990 ). Its color is yellow, the streak is white, and the luster is vitreous to slightly pearly. Footemineite is transparent and non-fluorescent...
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Journal Article
Published: 24 November 2020
The Canadian Mineralogist (2020) 58 (5): 637–652.
... is a secondary hydrothermal mineral that occurs in miarolitic cavities as beige to pale yellow druses of euhedral, pseudocubic crystals up to 3 mm associated with albite and sprays of zanazziite ( Fig. 1 ). The kosnarite sample in this study (CMNMC 87568) was obtained from Brian R. Kosnar, the son of Richard...
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Journal Article
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 914–942.
.... 2009 ) are members of the roscherite group; roscherite has Fe 3+ in only M1 and Fe 2+ in both M1 and M2. Zanazziite has Fe 2+ and Fe 3+ , both assigned to M2. The spectrum of satterlyite ( Kolitsch et al. 2002 ) MDD18 is dominated by two Fe 2+ doublets in the M1 and M2 sites and a very small Fe 3...
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Journal Article
Published: 01 October 2007
The Canadian Mineralogist (2007) 45 (5): 1307–1324.
..., veszelyite, vitusite-(Ce), vivianite, voggite, wagnerite, waylandite, weinebeneite, whiteite-(CaFeMg), whiteite-(CaMnMg), whiteite-(MnFeMg), wicksite, wolfeite, woodhouseite, zanazziite and zincolibethenite. Analysis of the Gladstone–Dale compatibility indices for the 33 vanadium oxysalt species whose...
Journal Article
Published: 01 July 2003
American Mineralogist (2003) 88 (7): 1175–1180.
... of monoclinic roscherite and zanazziite and had been reported from several other localities prior to its recognition as a distinct species. N.N.P. F.C. Hawthorne, M.A. Cooper, J.D. Grice, A.C. Roberts, W.R. Cook, Jr., R.J. Lauf (2002) Hubeite, a new mineral from the Daye Mine near Huangshi, Hubei...
Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 50 (1): 333–403.
... ] 10.381(1) 10.766(2) 8.881(1) 96.33(1) P 1̅ (75) zanazziite 8 Ca 2 Mg 5 [Be 4 P 6 O 24 (OH) 4 ](H 2 O) 6 15.921(5) 11.965(4) 6.741(1) 94.3(1) C 1̅ (76) The variation in <Be-φ> distances (< > denotes a mean value; in this case, of Be in tetrahedral coordination...
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Journal Article
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 999–1021.
...+ ) 3 ]O 4 [Si 6 Be 3 Al(Fe 3+ ) 2 O 36 ] Silicate Sapphirine 414 a Be112 Zanazziite Ca 2 Mg 5 Be 4 (PO 4 ) 6 (OH) 4 ·6H 2 O Phosphate Roscherite Notes: Complexity is given in terms of total structural information content as bits per unit cell ( Krivovichev 2013 , Supplementary...
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Journal Article
Published: 01 August 2013
American Mineralogist (2013) 98 (8-9): 1624–1630.
...-developed Na-metasomatic unit and large pockets in cleavelandite containing brazilianite crystals up to 10 cm. The brazilianite crystal used in this study was perched on platy albite (3 × 3 × 2 cm of cleavelandite) and closely associated with zanazziite crystals (up to 3 mm). A preliminary check...
FIGURES
Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 50 (1): 1–76.
...; Vezzalini (1988) ; Giuseppetti et al. (1991) Roscherite (“roscherite-1 M ” of Strunz & Nickel 2001 ; Mn-dominant analogue of zanazziite and greifensteinite; see note)
 Monoclinic (Fe 2+ ,Mg,Al,Fe 3+ ,□)Ca 2 (Mn 2+ ,Fe 2+ ,Mg,Ca) 4 Be 4 - (PO 4 ) 6 (OH) 6-n · (4+n)H 2 O, where 0 ≤ n ≤ 2 Miarolitic...
FIGURES
Journal Article
Published: 01 January 2011
American Mineralogist (2011) 96 (1): 42–52.
..., and ruifrancoite ( Atencio et al. 2007 ). The Fazenda Pomaroli mine, a pegmatite 5 m in width, is explored since the nineties. Exceptional high-quality geminated montebrasite were found in miarolitic cavities, some were 20 cm long. Associated minerals are apatite-(Ca,F), eosphorite, frondelite, and zanazziite...
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Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 50 (1): 405–444.
...). Roscherite-group minerals, roscherite and zanazziite , are reported to have a general composition of Ca 2 (Mn,Mg,Fe,Al) 5 [Be 3 (PO 4 ) 6 (OH) 4 ·6H 2 O, and are apparently dimorphous (roscherite-A and -M of Gaines et al. 1997 ). Probable compositional differences between the dimorphs have not yet...
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Journal Article
Published: 01 August 2003
The Canadian Mineralogist (2003) 41 (4): 1075–1096.
..., near Vielsalm, southeastern Stavelot Massif, Belgium. Hatert, F. et al. ( 2003 ): Eur. J. Mineral. 15 , 734 . Ca 2 Be 4 (Fe 2+ ,Mn) 5 (PO 4 ) 6 (OH) 4 ·6H 2 O, monoclinic, C 2/ c The Fe-dominant analogue of roscherite and zanazziite Named after the discovery locality...
Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 48 (1): 123–253.
... 1 / A 8c,d Fransoletite [Be 2 (PO 4 ) 2 (PO 3 {OH}) 2 ] P 2 1 / A 9a,b arafransoletite [Be 2 (PO 4 ) 2 (PO 3 {OH}) 2 ] P 1̅ – Roscherite [Be 4 (PO 4 ) 6 (OH) 6 ] C 2/ C 9c,d Zanazziite [Be 4 (PO 4 ) 6 (OH) 6 ] C 2/ C 9c,d Spencerite [Zn(PO 4 )(OH)(H 2 O...
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Journal Article
Published: 01 December 2018
American Mineralogist (2018) 103 (12): 2036–2048.