Delindeite Mineral Data

[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 Delindeite Information

Chemical Formula:

Ba2(Na,K,[ ])3(Ti,Fe)[Ti2(O,OH)4Si4O14](H2O,OH)2

Composition:

Molecular Weight = 886.43 gm

Potassium 0.88 % K 1.06 % K₂O

Barium 30.98 % Ba 34.59 % BaO

Sodium 3.63 % Na 4.89 % Na₂O

Titanium 14.04 % Ti 23.43 % TiO₂

Aluminum 0.30 % Al 0.58 % Al₂O₃

Iron 1.89 % Fe 2.70 % Fe₂O₃

Silicon 12.36 % Si 26.44 % SiO₂

Hydrogen 0.68 % H 6.04 % H₂O

Oxygen 35.23 % O

______ ______

100.00 % 99.73 % = TOTAL OXIDE

Empirical Formula:

Na_1.4K_0.2Ba₂Ti_2.6Fe³⁺_0.3Al_0.1Si_3.9O_15.2(OH)_2.71.62(H₂O)

Environment:

Secondary mineral formed under oxidizing conditions from a titianiferous nepheline syenite.

IMA Status:

Approved IMA 1987

Locality:

Diamond Jo quarry, Magnet Cove, Hot Springs County, Arkansas, USA. Link to MinDat.org Location Data.

Name Origin:

Named for Henry deLinde, long time mineral collector and owner of the Diamond Jo quarry.

Name Pronunciation:

Delindeite + Pronunciation

Delindeite Image

Images:

Delindeite

Comments: pale pink acicular crystal sprays of delindeite on matrix.
Location: Diamond Jo Quarry, Hot Spring County, Arkansas, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Delindeite Crystallography

Axial Ratios:

a:b:c =0.7769:1:3.1373

Cell Dimensions:

a = 5.327, b = 6.856, c = 21.51, Z = 2; beta = 93.8° V = 783.86 Den(Calc)= 3.76

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: A2/m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 10.8(1), 2.888(0.31), 3.083(0.28),3.54(0.24), 2.262(0.2), 2.806(0.2), 2.753(0.16),

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

Ferraris G , Ivaldi G , Pushcharovsky D Y , Zubkova N V , Pekov I V , The Canadian Mineralogist , 39 (2001) p.1307-1316

Physical Properties of Delindeite

Cleavage:

{001} Good

Color:

Gray pink.

Density:

3.3

Diaphaneity:

Translucent

Fracture:

Brittle - Irregular - Very brittle fracture producing irregular fragments

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Flakes - Flat, thin crystals or aggregates.

Luster:

Pearly

Streak:

white

Optical Properties of Delindeite

Gladstone-Dale:

CI meas= -0.126 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2302,KPDmeas= 0.2623,KC= 0.233
Ncalc = 1.77 - 1.88

Optical Data:

Biaxial (+), a=1.79, b=1.825, g=1.982, bire=0.1920, 2V(Calc)=54, 2V(Meas)=54.

Calculated Properties of Delindeite

Electron Density:

Bulk Density (Electron Density)=3.51 gm/cc
note: Specific Gravity of Delindeite =3.76 gm/cc.

Fermion Index:

Fermion Index = 0.07
Boson Index = 0.93

Photoelectric:

PE_Delindeite= 136.56 barns/electron
U=PE_Delindeite x r_electron= 479.86 barns/cc.

Radioactivity:

GRapi = 11.88 (Gamma Ray American Petroleum Institute Units)
Concentration of Delindeite per GRapi unit = 8.42 (%)

Estimated Radioactivity from Delindeite - barely detectable

Delindeite Classification

Dana Class:

56.02.06c.02 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O

(56.02)with cations in [4] and/or >[4] coordination

(56.02.06c)Seidozerite - Lamprophyllite group (Lamprophyllite subgroup)

56.02.06c.01 Barytolamprophyllite Ba2Na3(Fe,Ti)3(Si2O7)2(O,OH,F)4 C 2/m 2/m

56.02.06c.02 Delindeite Ba2(Na,K,[])3(Ti,Fe)[Ti2(O,OH)4Si4O14](H2O,OH)2 A2/m 2/m

56.02.06c.03 Ericssonite BaMn2FeO[Si2O7](OH) C 2/m 2/m

56.02.06c.04 Lamprophyllite Na2(Sr,Ba)2Ti3(SiO4)4(OH,F)2 C 2/m 2/m

56.02.06c.05 Orthoericssonite BaMn2(FeO)Si2O7(OH) Pmmn 2/m 2/m 2/m

56.02.06c.06 Andremeyerite BaFe(Fe,Mn,Mg)Si2O7 P 2₁/c 2/m

56.02.06c.07 Eveslogite! (Ca,K,Na,Sr,Ba)48[(Ti,Nb,Fe,Mn)12(OH)12Si48O144](F,OH,Cl)14 P 2/m 2/m

56.02.06c.08 Nabalamprophyllite! Ba(Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2} P 2/m 2/m

Strunz Class:

09.BE.60 09 - SILICATES (Germanates)

09.B - Sorosilicates

09.BE -Si2O7 groups with additional anions;

09.BE.60 Delindeite Ba2(Na,K,[])3(Ti,Fe)[Ti2(O,OH)4Si4O14](H2O,OH)2 A2/m 2/m

Other Delindeite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2, AmMin v 87, p 999) OPTIC PROP.(AntBidBlaNic2)

See Also:

Links to other databases for Delindeite :
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 Delindeite using:

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

Visit our Advertisers for Delindeite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Delindeite Mineral Data :

Ask about Delindeite 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 Español

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

Delindeite

Ba2(Na,K,[ ])3(Ti,Fe)[Ti2(O,OH)4Si4O14](H2O,OH)2
Dana No: 56.02.06c.02 Strunz No: 09.BE.60
Locality:

Notes: