Datolite Mineral Data

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



[Register] [Auction Rules] [Current Listing] [About Us] [Site Map]
e-Rocks.com, auction and sales venue for all rock and mineral enthusiasts
Our mission is to provide an online centre for Buyers and Sellers with reliable service and support
Brought to you by Thames Valley Minerals


General Datolite Information

Help on Chemical Formula: Chemical Formula: CaBSiO4(OH)
Help on Composition: Composition: Molecular Weight = 159.98 gm
   Calcium   25.05 %  Ca   35.05 % CaO
   Silicon   17.56 %  Si   37.56 % SiO2
   Boron      6.76 %  B    21.76 % B2O3
   Hydrogen   0.63 %  H     5.63 % H2O
   Oxygen    50.00 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaB(SiO4)(OH)
Help on Environment: Environment: Secondary mineral in basic igneous rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1806
Help on Locality: Locality: Diabases of the Connecticut River valley, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, dateisthai, meaning "to divide," because granular aggregates crumble readily.
Help on Name Pronunciation: Name Pronunciation: Datolite Say DATOLITE
Help on Synonym: Synonym: ICSD 22026
  PDF 36-429
 

Datolite Image

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

Datolite

Comments: Cluster of doubly-terminated datolite crystals to 3.3 cm across with a scattering of brown inclusions.
Location: Boron Pit, Dal'Negorsk, Russia. Scale: 5x3.9x3.7 cm.
© Fabre Minerals

Datolite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.2643:1:0.6321
Help on Cell Dimensions: Cell Dimensions: a = 9.66, b = 7.64, c = 4.83, Z = 4; beta = 90.15° V = 356.46 Den(Calc)= 2.98
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): 3.114(1), 2.855(0.65), 2.189(0.6),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

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

Warning: this large pop-up is very compute intensive and may not work well with some computers.
Click Here for Large Datolite 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


Foit F F , Phillips M W , Gibbs G V , American Mineralogist , 58 (1973) p.909-914, A refinement of the crystal structure of datolite, CaBSiO4(OH)

View Additional jPOWD Structure files for Datolite
[1]
 

Physical Properties of Datolite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brown, Colorless, Yellow, White, Light green.
Help on Density: Density: 2.8 - 3, Average = 2.9
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Porcelainous - Fine-grained, translucent massive material like broken china
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Datolite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.03 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.002 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2181,KPDmeas= 0.2241,KC= 0.2177
Ncalc = 1.61 - 1.65
Help on Optical Data: Optical Data: Biaxial (-), a=1.626, b=1.653-1.654, g=1.67, bire=0.0440, 2V(Calc)=72-74, 2V(Meas)=74. Dispersion none.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
 

Calculated Properties of Datolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.98 gm/cc
note: Specific Gravity of Datolite =2.98 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEDatolite = 3.83 barns/electron
U=PEDatolite x rElectron Density= 11.41 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Datolite is Not Radioactive
 

Datolite Classification
Help on Dana Class: Dana Class: 54.02.01a.01 (54)Nesosilicate Borosilicates and Some Beryllosilicates
  (54.02)with B in [4] coordination
  (54.02.01a)Datolite group (Datolite series)
 
54.02.01a.01 Datolite CaBSiO4(OH) P 21/c 2/m
 
54.02.01a.02 Hingganite-(Ce) (Ce,Ca)2([],Fe)Be2Si2O8[(OH),O]2 P 21/a 2/m
 
54.02.01a.03 Hingganite-(Y) Y2([])Be2Si2O8(OH)2 P 21/a 2/m
 
54.02.01a.04 Hingganite-(Yb) (Yb,Y)2([])Be2Si2O8(OH)2 P 21/a 2/m
 
54.02.01a.05 Calcybeborosilite-(Y)! (REE,Ca)2[](B,Be)2(SiO4)2(OH,O)2 P 21/a 2/m
Help on Strunz Class: Strunz Class: 09.AJ.20 09 - SILICATES (Germanates)
  09.A - Nesosilicates
  09.AJ -Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra,
 
09.AJ.20 Bakerite Ca4B4(BO4)(SiO4)3(OH)3•(H2O) P 21/c 2/m
 
09.AJ.20 Calcybeborosilite-(Y)! (REE,Ca)2[](B,Be)2(SiO4)2(OH,O)2 P 21/a 2/m
 
09.AJ.20 Calciogadolinite? CaREE(Fe)Be2Si2O10 P 21/a 2/m
 
09.AJ.20 Datolite CaBSiO4(OH) P 21/c 2/m
 
09.AJ.20 Hingganite-(Yb) (Yb,Y)2([])Be2Si2O8(OH)2 P 21/a 2/m
 
09.AJ.20 Homilite Ca2(Fe,Mg)B2Si2O10 P 21/a 2/m
 
09.AJ.20 Gadolinite-(Ce) (Ce,La,Nd,Y)2FeBe2Si2O10 P 21/c 2/m
 
09.AJ.20 Gadolinite-(Y) Y2FeBe2Si2O10 P 21/a 2/m
 
09.AJ.20 Hingganite-(Ce) (Ce,Ca)2([],Fe)Be2Si2O8[(OH),O]2 P 21/a 2/m
 
09.AJ.20 Hingganite-(Y) Y2([])Be2Si2O8(OH)2 P 21/a 2/m
 
09.AJ.20 Melanocerite-(Ce) (Ce,Th,Ca)5(Si,B)3O12(OH,F)•n(H2O)(?) Unk (HEX-R) Trig
 
09.AJ.20 Minasgeraisite-(Y) CaY2Be2Si2O10 P 21/a 2/m
 

Other Datolite Information
Help on See Also: See Also: Links to other databases for Datolite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Amethyst Galleries' Mineral Gallery
6 - Athena
7 - EUROmin Project
8 - Ecole des Mines de Paris
9 - Franklin Minerals(Dunn)
10 - Franklin Minerals(Palache)
11 - Glendale Community College
12 - Google Images
13 - Google Scholar
14 - Handbook of Mineralogy (MinSocAm)
15 - Handbook of Mineralogy (UofA)
16 - MinDAT
17 - MinMax(Deutsch)
18 - MinMax(English)
19 - Mineralienatlas (Deutsch)
20 - QUT Mineral Atlas
21 - Ruff.Info
22 - WWW-MINCRYST
23 - YupRocks
24 - theimage

Search for Datolite using:

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

Visit our Advertisers for Datolite :

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 Datolite Mineral Data :

Ask about Datolite 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 Datolite Specimen Label here :

Datolite

CaBSiO4(OH)
Dana No: 54.02.01a.01 Strunz No: 09.AJ.20
Locality:

 

Notes: