Biphosphammite Mineral Data

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


Dakota Matrix
[Newest Minerals] [Rare Minerals] [Cabinet Specimens] [About Us] [Image Gallery]
Dakota Matrix Minerals
Updated weekly, for the collector, educator, and researcher since 1996
Extensive Inventory of very Rare Minerals. Visa and Mastercard are Welcome


General Biphosphammite Information

Help on Chemical Formula: Chemical Formula: (NH4,K)H2PO4
Help on Composition: Composition: Molecular Weight = 120.29 gm
   Potassium    8.13 %  K     9.79 % K2O
   Phosphorus  25.75 %  P    59.00 % P2O5
   Hydrogen     2.51 %  H      -   % Calc as (NH4)2O
   Hydrogen     1.68 %  H    14.98 % H2O
   Nitrogen     8.73 %  N    16.23 % (NH4)2O
   Oxygen      53.20 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (NH4)0.75K0.25H2(PO4)
Help on Environment: Environment: Occurs as an alteration of phosphammite in guano, due to loss of ammonium (NH4).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1870
Help on Locality: Locality: On Guanape Island, south of Trujillo, Peru. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: As a BIPHOSPHate of AMMonium.
Help on Name Pronunciation: Name Pronunciation: Biphosphammite + Pronunciation Say BIPHOSPHAMMITE
 

Biphosphammite Image

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

Biphosphammite

Comments: Vuggy, dark green-brown biphosphammite.
Location: Mason Bat Cave, Mason County, Texas, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
Click Here for Larger Biphosphammite Image in a New Browser Window Images:
Click Here for Larger Biphosphammite Image

Biphosphammite   Archerite

Comments: Buff-colored biphosphammite with white archerite crusts.
Location: Cockelbiddy Cave, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Biphosphammite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:0.98082
Help on Cell Dimensions: Cell Dimensions: a = 7.4835, c = 7.34, Z = 4; V = 411.06 Den(Calc)= 1.94
Help on Crystal System: Crystal System: Tetragonal - ScalenohedralH-M Symbol (4 2m) Space Group: I 42d
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.75(1), 3.02(0.9), 5.24(0.9),
Click Here for Large Biphosphammite 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 , Baur W H , Acta Crystallographica, Section B , 29 (1973) p.2721-2726, Refinement of the crystal structures of ammonium dihydrogen phosphate and, ammonium dihydrogen arsenate, Locality: synthetic, Note: known as ADP

 

Physical Properties of Biphosphammite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brown, Colorless, Gray white.
Help on Density: Density: 2.04
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 1-2 - Between Talc and Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Biphosphammite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.383 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.455 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.259,KPDmeas= 0.2463,KC= 0.1781
Ncalc = 1.35 - 1.36
Help on Optical Data: Optical Data: Uniaxial (-), e=1.48, w=1.525, bire=0.0450.
 

Calculated Properties of Biphosphammite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.10 gm/cc
note: Specific Gravity of Biphosphammite =2.04 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEBiphosphammite = 2.06 barns/electron
U=PEBiphosphammite x relectron= 4.33 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 120.85 (Gamma Ray American Petroleum Institute Units)
Concentration of Biphosphammite per GRapi unit = 0.83 (%)

Estimated Radioactivity from Biphosphammite - barely detectable

 

Biphosphammite Classification
Help on Dana Class: Dana Class: 37.01.04.01 (37)Anhydrous Acid Phosphates, etc
  (37.01)with miscellaneous formulae
  (37.01.04)Dana Group
 
37.01.04.01 Biphosphammite (NH4,K)H2PO4 I 42d 4 2m
 
37.01.04.02 Archerite (K,NH4)H2PO4 I 42d 4 2m
Help on Strunz Class: Strunz Class: 08.AD.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AD -With only large cations
 
08.AD.15 Archerite (K,NH4)H2PO4 I 42d 4 2m
 
08.AD.15 Biphosphammite (NH4,K)H2PO4 I 42d 4 2m
 

Other Biphosphammite 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 Biphosphammite :
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 Biphosphammite using:

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

Visit our Advertisers for Biphosphammite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Diamond Dan Publications

e-Rocks Auctions

Excalibur Minerals

Exceptional Minerals


Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Biphosphammite Mineral Data :

Ask about Biphosphammite 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 Biphosphammite Specimen Label here :

Biphosphammite

(NH4,K)H2PO4
Dana No: 37.01.04.01 Strunz No: 08.AD.15
Locality:

 

Notes: