Phosphammite Mineral Data

Phosphammite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


AA Mineral Sepcimens
[What's New] [Mineral Galleries] [About Us] [Contacts] [Login]
At AA Mineral Specimens, we source quality Mineral Specimens, Fossils, Gemstones,
Decorative Stones, Lapidary Material and Specimen Sets world-wide


General Phosphammite Information

Help on Chemical Formula: Chemical Formula: (NH4)2HPO4
Help on Composition: Composition: Molecular Weight = 132.06 gm
   Phosphorus  23.45 %  P    53.74 % P2O5
   Hydrogen     6.11 %  H      -   % Calc as (NH4)2O
   Hydrogen     0.76 %  H     6.82 % H2O
   Nitrogen    21.21 %  N    39.43 % (NH4)2O
   Oxygen      48.46 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (NH4)2(HPO4)
Help on Environment: Environment: Probably a crystallization product of the liquid fraction of guano.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1870
Help on Locality: Locality: In Toppin Hill Cave, about 320 km northeast of Kalgoorlie, Western Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as a PHOSPHate of AMMonium.
Help on Name Pronunciation: Name Pronunciation: Phosphammite + Pronunciation Say PHOSPHAMMITE
Help on Synonym: Synonym: ICSD 2799
  PDF 29-111
 

Phosphammite Image

Click Here for Larger Phosphammite Image in a New Browser Window Images:
Click Here for Larger Phosphammite Image

Phosphammite

Comments: Tan opaque granular phosphammite.
Location: Guanape Islands, La Libertad, Peru. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Phosphammite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.6048:1:1.1959
Help on Cell Dimensions: Cell Dimensions: a = 10.735, b = 6.689, c = 8, Z = 4; beta = 109.72° V = 540.76 Den(Calc)= 1.62
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.05(1), 5.57(0.75), 4.94(0.65),
Click Here for Large Phosphammite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Khan A A , Roux J P , James W J , Acta Crystallographica, Section B , 28 (1972) p.2065-2069, The crystal structure of diammonium hydrogen phosphate, (NH4)2HPO4

 

Physical Properties of Phosphammite

Help on Color: Color: Colorless.
Help on Density: Density: 1.33
Help on Diaphaneity: Diaphaneity: Transparent
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Phosphammite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -2.209 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -1.634 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3202,KPDmeas= 0.39,KC= 0.1215
Ncalc = 1.16 - 1.2
Help on Optical Data: Optical Data: Biaxial (+), a=1.508, b=1.518, g=1.53, bire=0.0220
 

Calculated Properties of Phosphammite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.72 gm/cc
note: Specific Gravity of Phosphammite =1.62 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.21
Boson Index = 0.79
Help on Photoelectric: Photoelectric: PEPhosphammite = 1.18 barns/electron
U=PEPhosphammite x rElectron Density= 2.02 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Phosphammite is Not Radioactive
 

Phosphammite Classification
Help on Dana Class: Dana Class: 37.01.03.01 (37)Anhydrous Acid Phosphates, etc
  (37.01)with miscellaneous formulae
  (37.01.03)Dana Group
 
37.01.03.01 Phosphammite (NH4)2HPO4 P 21/c 2/m
Help on Strunz Class: Strunz Class: 08.AD.20 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AD -With only large cations
 
08.AD.20 Phosphammite (NH4)2HPO4 P 21/c 2/m
 

Other Phosphammite Information
Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Phosphammite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Phosphammite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Phosphammite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Phosphammite Mineral Data :

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

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

Phosphammite

(NH4)2HPO4
Dana No: 37.01.03.01 Strunz No: 08.AD.20
Locality:

 

Notes: