Harmotome Mineral Data

Harmotome 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]
Weinrich Minerals, Inc
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 Harmotome Information

Help on Chemical Formula: Chemical Formula: (Ba,Na,K)1-2(Si,Al)8O16•6(H2O)
Help on Composition: Composition: Molecular Weight = 704.93 gm
   Potassium   0.55 %  K     0.67 % K2O
   Barium     15.58 %  Ba   17.40 % BaO
   Sodium      0.65 %  Na    0.88 % Na2O
   Aluminum    7.66 %  Al   14.46 % Al2O3
   Silicon    23.91 %  Si   51.14 % SiO2
   Hydrogen    1.72 %  H    15.33 % H2O
   Oxygen     49.93 %  O
             ______        ______ 
             100.00 %       99.89 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba0.8Na0.2K0.1Al2Si6O16•6(H2O)
Help on Environment: Environment: Alteration product of basalt and similar eruptive rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1801
Help on Locality: Locality: Bodenmais in Bavaria, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek harmos - "I combine" and temseis - "I cut" alluding to the fact that the pyramid divides parallel to the plane that passes through the terminal edges.
Help on Name Pronunciation: Name Pronunciation: Harmotome + Pronunciation Say HARMOTOME
Help on Synonym: Synonym: Andreasbergolite
  Andreolite
  Barytkreuzstein
  ICSD 15460
  Kurtzite
  PDF 39-1377
  Wellsite - Ca bearing
 

Harmotome Image

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

Harmotome

Comments: Root beer colored calcite covered with harmotome crystals from 1 mm to 1 cm.
Location: Strontian Hills, Strontian, Argyll, Scotland. Scale: 5.5 x 4.5 cm.
© John Veevaert

Harmotome Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.6987:1:0.6148
Help on Cell Dimensions: Cell Dimensions: a = 9.879, b = 14.139, c = 8.693, Z = 2; beta = 55.166° V = 996.65 Den(Calc)= 2.35
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.67(1), 2.7(1), 3.12(1),
Click Here for Large Harmotome 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


Rinaldi R , Pluth J J , Smith J V , Acta Crystallographica, Section B , 30 (1974) p.2426-2433, Zeolites of the phillipsite family. Refinement of the crystal structure of, phillipsite and harmotome

 

Physical Properties of Harmotome

Help on Cleavage: Cleavage: {010} Good, {001} Fair
Help on Color: Color: White, Gray, Yellow, Red, Brown.
Help on Density: Density: 2.44 - 2.5, Average = 2.46
Help on Diaphaneity: Diaphaneity: Subtransparent to translucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Cruciform - Twinned tabular crystals with a cross-like outline.
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Habit: Habit: Twinning Common - Crystals are usually twinned.
Help on Hardness: Hardness: 4-5 - Fluorite-Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Harmotome

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.043 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.006 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.215,KPDmeas= 0.2046,KC= 0.2137
Ncalc = 1.5 - 1.53
Help on Optical Data: Optical Data: Biaxial (+), a=1.503, b=1.505, g=1.508, bire=0.0050, 2V(Calc)=80, 2V(Meas)=43. Dispersion none.
 

Calculated Properties of Harmotome

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.31 gm/cc
note: Specific Gravity of Harmotome =2.35 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEHarmotome = 64.75 barns/electron
U=PEHarmotome x relectron= 149.76 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 7.87 (Gamma Ray American Petroleum Institute Units)
Concentration of Harmotome per GRapi unit = 12.70 (%)

Estimated Radioactivity from Harmotome - barely detectable

 

Harmotome Classification
Help on Dana Class: Dana Class: 77.01.03.05 (77)Tectosilicate Zeolite group
  (77.01)true zeolites
  (77.01.03)Gismondine and related species
 
77.01.03.01 Gismondine Ca2Al4Si4O16•9(H2O) P 21/c 2/m
 
77.01.03.02 Amicite K2Na2Al4Si4O16•5(H2O) I2 2
 
77.01.03.03 Garronite Na2Ca5Al12Si20O64•27(H2O) I 41/a 4/m
 
77.01.03.04 Gobbinsite (Na2,Ca)2K2Al6Si10O32•12(H2O) P mn21 mm2
 
77.01.03.05 Harmotome (Ba,Na,K)1-2(Si,Al)8O16•6(H2O) P 21/m 2/m
 
77.01.03.06 Phillipsite-Na (Na,K,Ca)1-2(Si,Al)8O16•6(H2O) P 21/m 2/m
 
77.01.03.06a Phillipsite-Ca! (Ca,K,Na)1-2(Si,Al)8O16•6(H2O) P 21/m 2/m
 
77.01.03.06b Phillipsite-K! (K,Na,Ca)1-2(Si,Al)8O16•6(H2O) P 21/m 2/m
 
77.01.03.08 Perlialite K8Tl4Al12Si24O72•20(H2O) P 6/mmm 6/m 2/m 2/m
 
77.01.03.09 Paulingite-K (K2,Ca,Na2,Ba)5Al10Si35O90•45(H2O) Im3m 4/m 3 2/m
 
77.01.03.09a Paulingite-Na! (Na2,K2,Ca,Ba)5Al10Si35O90•45(H2O) Im3m 4/m 3 2/m
 
77.01.03.09b Paulingite-Ca! (Ca,K,Na,Ba)5[Al10Si35O84]•34(H2O) Im3m 4/m 3 2/m
 
77.01.03.10 Mazzite-Mg K2CaMg2(Al,Si)36O72•28(H2O) P 63/mmc 6/m 2/m 2/m
 
77.01.03.10a Mazzite-Na! Na8Al8Si28O72•30H2O P 63/mmc 6/m 2/m 2/m
 
77.01.03.11 Merlinoite (K,Ca,Na,Ba)7Si23Al9O64•23(H2O) I mmm 2/m 2/m 2/m
 
77.01.03.12 Montesommaite (K,Na)9Al9Si23O64•10(H2O) F dd2 mm2
Help on Strunz Class: Strunz Class: 09.GC.10 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.GC -Chains of doubly-connected 4-membered rings
 
09.GC.10 Harmotome (Ba,Na,K)1-2(Si,Al)8O16•6(H2O) P 21/m 2/m
 
09.GC.10 Phillipsite-Na (Na,K,Ca)1-2(Si,Al)8O16•6(H2O) P 21/m 2/m
 
09.GC.10 Phillipsite-Ca! (Ca,K,Na)1-2(Si,Al)8O16•6(H2O) P 21/m 2/m
 
09.GC.10 Phillipsite-K! (K,Na,Ca)1-2(Si,Al)8O16•6(H2O) P 21/m 2/m
 

Other Harmotome Information
Help on References: References: NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Harmotome :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Athena
6 - EUROmin Project
7 - Ecole des Mines de Paris
8 - GeoScienceWorld
9 - Google Images
10 - Google Scholar
11 - Handbook of Mineralogy (MinSocAm)
12 - Handbook of Mineralogy (UofA)
13 - MinDAT
14 - Mineralienatlas (Deutsch)
15 - Online Mineral Museum
16 - QUT Mineral Atlas
17 - Ruff.Info
18 - WWW-MINCRYST

Search for Harmotome using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [bing] [GeoScienceWorld] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Harmotome :

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

John Betts Fine Minerals

Lapis Mineral Journal

Mineral News

UV Tools

Wrights Rock Shop

Translate Harmotome Mineral Data :

Ask about Harmotome 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 Harmotome Specimen Label here :

Harmotome

(Ba,Na,K)1-2(Si,Al)8O16•6(H2O)
Dana No: 77.01.03.05 Strunz No: 09.GC.10
Locality:

 

Notes: