Nagelschmidtite Mineral Data

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


Dan Weinrich Fine Minerals
[Fine Minerals] [What's New] [Mineral Galleries] [My Collection] [Mineral Auctions]
Dan Weinrich Fine Minerals
Full-time professional mineral dealer with over 31 years experience in mineral collecting
And 15 years selling mineral specimens on the internet and at major mineral shows


General Nagelschmidtite Information

Help on Chemical Formula: Chemical Formula: Ca7(SiO4)3(PO4)2
Help on Composition: Composition: Molecular Weight = 746.74 gm
   Calcium     37.57 %  Ca   52.57 % CaO
   Silicon     11.28 %  Si   24.14 % SiO2
   Phosphorus   8.30 %  P    19.01 % P2O5
   Oxygen      42.85 %  O
              ______        ______ 
              100.00 %       95.71 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca7(SiO4)3(PO4)2
Help on Environment: Environment: Sedimentary phosphate deposits.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Lowermost portion of the Hatrarum formation, Israel. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for G. Nagelschmidt, who first described the synthetic compound in 1937.
Help on Name Pronunciation: Name Pronunciation: Nagelschmidtite + Pronunciation Say NAGELSCHMIDTITE
 

Nagelschmidtite Image

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

Nagelschmidtite

Comments: Upper - Transmitted light thin sections showing honey-brown nagelschmidtite. Lower - reflected light polished section showing nagelschmidtite (Nag), rankinite (Ran), Ti-rich androdite (Andr).
Location: Andradite-rich pegmatoid rock, Haturim Basin, Negev Desert, Israel. Scale: See Images.
© Diederik Visser

Nagelschmidtite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.3197
Help on Cell Dimensions: Cell Dimensions: a = 5.38, c = 7.1, Z = 0.5; V = 177.97 Den(Calc)= 3.48
Help on Crystal System: Crystal System: HexagonalSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.66(1), 2.8(0.7), 1.94(0.4),
 

Physical Properties of Nagelschmidtite

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Brown, Colorless, Yellowish white, Light yellow.
Help on Density: Density: 3.065
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Nagelschmidtite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.114 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.019 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1917,KPDmeas= 0.2176,KC= 0.1954
Ncalc = 1.6 - 1.68
Help on Optical Data: Optical Data: Biaxial (+/-), a=1.638-1.68, b=1.652-1.698,
 

Calculated Properties of Nagelschmidtite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.47 gm/cc
note: Specific Gravity of Nagelschmidtite =3.48 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0059821648
Boson Index = 0.9940178352
Help on Photoelectric: Photoelectric: PENagelschmidtite = 5.46 barns/electron
U=PENagelschmidtite x rElectron Density= 18.92 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nagelschmidtite is Not Radioactive
 

Nagelschmidtite Classification
Help on Dana Class: Dana Class: 53.02.02.01 (53)Nesosilicate Insular SiO4 Groups and Other Anions of Complex Cations
  (53.02)with (SO4), (CrO4), (PO4), etc.
  (53.02.02)Dana Group
 
53.02.02.01 Nagelschmidtite Ca7(SiO4)3(PO4)2 Unk Hex
Help on Strunz Class: Strunz Class: 09.HA.60 09 - SILICATES (Germanates)
  09.H - Unclassified Silicates
  09.HA -With alkali and alkali-earth Elements
 
09.HA.60 Nagelschmidtite Ca7(SiO4)3(PO4)2 Unk Hex
 

Other Nagelschmidtite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Nagelschmidtite :
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 Nagelschmidtite using:

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

Visit our Advertisers for Nagelschmidtite :

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 Nagelschmidtite Mineral Data :

Ask about Nagelschmidtite 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 Nagelschmidtite Specimen Label here :

Nagelschmidtite

Ca7(SiO4)3(PO4)2
Dana No: 53.02.02.01 Strunz No: 09.HA.60
Locality:

 

Notes: