...J. T. Lindbloom; G. V. Gibbs; P. H. Ribbe Abstract The crystal structure of hurlbutite, CaBe 2 P 2 O 8 ( a = 8.299Å; b = 8.782 Å; c = 7.798 Å; β = 90.5°; space group P 2 1 / a ) has been refined to an R factor of 0.062. The refinement converged only when the signs of the z -coordinates reported...

...Mary E. Mrose Abstract Hurlbutite, CaBe 2 (PO 4 ) 2 , is a new mineral from the Smith mine, Chandler's Mill, Newport, New Hampshire. Crystals arc orthorhombic and stout prismatic [001] in habit with {001}, [010|, {110}, {101}, {201}, and {311} doubtful. Faces often delicately etched with striations...

...Can Rao; Rucheng Wang; Frédéric Hatert; Xiangping Gu; Luisa Ottolini; Huan Hu; Chuanwan Dong; Fabrice Dal Bo; Maxime Baijot Abstract Strontiohurlbutite, ideally SrBe 2 (PO 4 ) 2 , is a new member of hurlbutite group discovered in the Nanping No. 31 pegmatite, Fujian province, southeastern China...

..., Sr, Pb) cation occurs in a distorted 7+3-coordinated polyhedron located in the eight-membered ring. CaBe 2 P 2 O 8 and SrBe 2 P 2 O 8 are isostructural with the minerals hurlbutite and strontiohurlbutite, respectively. The structure of BaBe 2 P 2 O 8 consists of double layers of tetrahedra, which...

...-poor melts. The second type is typically represented by the complex association of Be phosphates + silicates, typically interstitial to saccharoidal albite in zone II. This type shows a general sequence: phenakite → hydroxylherderite or hurlbutite → fluorapatite → beryl, which is suggestive...

... of the late stages of certain pegmatites, hurlbutite, CaBe 2 (PO 4 ) 2 , becomes stable, whereas under high activities of both P 2 O 5 and F 2 O (sub -1) , herderite, CaBePO 4 F, becomes stable in very late-stage pegmatites and in greisens. Under conditions more F 2 O (sub -1) -rich than those normally...

...〉 T 2 〈Ge-O〉 T 1 〈Ge-O〉 T 2 SGSP 2.626 1.822 1.824 1.627 1.629 - - SGGP 2.630 1.823 1.826 - - 1.746 1.750 These structures are compared in detail with hurlbutite (CaBe 2 P 2 O 8 ), another paracelsian-type structure, and with danburite (CaB 2 Si 2 O 8 ) whose T 3+ , T 4+ ordering is distinctly...

... that occur at the locality include hurlbutite, tiny beryl-lonite crystals, small twinned crystals of amblygonite and brazilianite as small single crystals and as aggregates of parallely intergrown crystals up to an inch in length. Copyright © 1953 by the Mineralogical Society of America 1953...

..., volumetric and morphology data . Journal of Applied Crystallography , 44 , 1272 – 1276 . Mrose M.E. ( 1952 ) Hurlbutite, CaBe 2 (PO 4 ) 2 , a new mineral . American Mineralogist , 37 , 931 – 940 . Pouchou J.L. Pichoir F. ( 1984 ) Extension des possibilités...

... here in any specific sequence, except the first half of the species involved, which belong in part to Hawthorne’s and Huminicki’s (this volume) phosphates with chains of Be-P linkages (A to F: roscherite to parafransoletite) and to phosphates with general Be-P linkages (G to K: hurlbutite...

...) 9.550(2) 10.010(2) 90 845.8(3) 4 Tiripathi & Parise (2002) Paracelsian-type compounds BaAl 2 Si 2 O 8 (paracelsian) P 2 1 / a 9.072(2) 9.588(2) 8.577(2) 90.21(2) 746.0(4) 4 Smith (1953) ; Chiari et al. (1985) * CaBe 2 P 2 O 8 (hurlbutite) P 2 1 / a 8.299(1) 8.782...

... . andalusite, ataca-mite, brazilianite, ettringite, ilmenite, lakebogaite, lovozerite, montebrasite, tyrolite or vesuvianite), to honour outstanding scientists by first or family name, or both ( e.g . bobfergusonite, breithauptite, eskolaite, goethite, haüyne, hurlbutite, mandarinoite, melonjosephite...

...-equilibrium studies . Am. Mineral . 71 , 376 – 395 . London , D. ( 1992 ): Application of experimental petrology to the genesis and crystallization of granitic pegmatites . Can. Mineral . 30 , 499 – 540 . Mrose , M.E. ( 1952 ): Hurlbutite, CaBe 2 (PO 4 ) 2 , a new mineral . Am...