Newberyite Mineral Data

General Newberyite Information

Chemical Formula:

Mg(PO3OH)•3(H2O)

Composition:

Molecular Weight = 174.33 gm

Magnesium 13.94 % Mg 23.12 % MgO

Phosphorus 17.77 % P 40.71 % P₂O₅

Hydrogen 4.05 % H 36.17 % H₂O

Oxygen 64.24 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mg(PO₃OH)•3(H₂O)

Environment:

Found in caves, formed directly from bat guano.

IMA Status:

Valid Species (Pre-IMA) 1879

Locality:

Skipton lava tube caves, 40 km southwest of Ballarat, Victoria, Australia. Link to MinDat.org Location Data.

Name Origin:

Named for James Cosmo Newbery (1843-1895), geologist, Melbourne, Australia, who initially found the mineral.

Name Pronunciation:

Newberyite + Pronunciation

Synonym:

ICSD 31281

PDF 35-780

Newberyite Image

Images:

Newberyite Dittmarite

Comments: Translucent crystalline dittmaritewith more opaque newberyite.
Location: Skipton Caves, Victoria, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Newberyite Hannayite

Comments: Translucent white prismatic crystals of hannayite on brown newberyite.
Location: Skipton Caves, Victoria, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Newberyite Monetite

Comments: Tan coatings of monetite on white newberyite pseudomorphous after struvite crystal.
Location: Mono Lake, Mono County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Newberyite

Comments: Crudely formed crystal newberyite aggregate.
Location: Skipton Caves, near Balarat, Victoria, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Newberyite Crystallography

Axial Ratios:

a:b:c =0.9563:1:0.9375

Cell Dimensions:

a = 10.215, b = 10.681, c = 10.014, Z = 8; V = 1,092.59 Den(Calc)= 2.12

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P bca

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.041(1), 3.462(0.66), 3.086(0.54),

Forms:

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Forms: ( 1 0 2) ( 0 1 0) ( 0 2 1) ( 1 1 1) ( 1 0 0) ( 0 0 1)

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Crystal Structure:

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Abbona F , Boistelle R , Haser R , Acta Crystallographica, Section B , 35 (1979) p.2514-2518, Hydrogen bonding in MgHPO4*3H2O (newberyite)

View Additional jPOWD Structure files for Newberyite
[1]

Physical Properties of Newberyite

Cleavage:

{010} Perfect, {001} Indistinct

Color:

Colorless, Gray brown, Grayish.

Density:

2.1

Diaphaneity:

Transparent

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Hardness:

3-3.5 - Calcite-Copper Penny

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Newberyite

Gladstone-Dale:

CI meas= -0.019 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2459,KPDmeas= 0.2483,KC= 0.2437
Ncalc = 1.51 - 1.52

Optical Data:

Biaxial (+), a=1.514, b=1.517, g=1.533, bire=0.0190, 2V(Calc)=48, 2V(Meas)=45.

Calculated Properties of Newberyite

Electron Density:

Bulk Density (Electron Density)=2.19 gm/cc
note: Specific Gravity of Newberyite =2.12 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Newberyite= 1.25 barns/electron
U=PE_Newberyite x rElectron Density= 2.73 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Newberyite is Not Radioactive

Newberyite Classification

Dana Class:

39.01.06.01 (39)Hydrated Acid Phosphates, etc

(39.01)A+ [HXO4] · x(H2O)

(39.01.06)Dana Group

39.01.06.01 Newberyite Mg(PO3OH)•3(H2O) P bca 2/m 2/m 2/m

Strunz Class:

08.CE.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CE -With only medium-sized cations, RO4:H2O £ 1:2.5

08.CE.10 Newberyite Mg(PO3OH)•3(H2O) P bca 2/m 2/m 2/m

Other Newberyite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Newberyite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Ask about Newberyite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
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Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Newberyite Specimen Label here :

Newberyite

Mg(PO3OH)•3(H2O)
Dana No: 39.01.06.01 Strunz No: 08.CE.10
Locality:

Notes: