Qandilite Mineral Data

Qandilite Mineral Data +

General Qandilite Information

Chemical Formula:

(Mg,Fe++)2(Ti,Fe+++,Al)O4

Composition:

Molecular Weight = 179.98 gm

Magnesium 17.56 % Mg 29.11 % MgO

Titanium 15.96 % Ti 26.63 % TiO₂

Aluminum 3.00 % Al 5.67 % Al₂O₃

Iron 27.93 % Fe 11.98 % FeO / 26.62 % Fe₂O₃

Oxygen 35.56 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mg_1.3Fe³⁺_0.4Fe²⁺_0.3Ti_0.6Fe³⁺_0.2Al_0.2O₄

Environment:

In a fosterite skarn.

IMA Status:

Approved IMA 1985

Locality:

Dupezeh Mountain, hear Hero Town, Qala-Dizeh, Iraq. Link to MinDat.org Location Data.

Name Origin:

Named for its occurrence in rocks of the Quadil Group, Iraq.

Synonym:

ICSD 65792

PDF 25-1157

Search for Qandilite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Qandilite Crystallography

Cell Dimensions:

a = 8.4033, Z = 8; V = 593.40 Den(Calc)= 4.03

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m

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

By Intensity(I/I_o): 2.53(1), 1.486(0.6), 1.617(0.5),

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

Millard R L , Peterson R C , Hunter B K , American Mineralogist , 80 (1995) p.885-896, Study of the cubic to tetragonal transition in Mg2TiO4 and Zn2TiO4 spinels by, 17O MAS NMR and Rietveld refinement of X-ray diffraction data, Sample: RLM445, 1405 C, Mg2TiO4

View Additional jPOWD Structure files for Qandilite
[1] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [2] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [3] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [4] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [5] [50] [51] [52] [53] [54] [6] [7] [8] [9]

Physical Properties of Qandilite

Cleavage:

[111] Perfect, [111] Perfect, [111] Perfect

Color:

Black.

Density:

4.03

Diaphaniety:

Opaque

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Octahedral Crystals - Occurs as octahedral shaped crystals.

Hardness:

7 - Quartz

Luster:

Metallic

Magnetism:

Strongly magnetic

Streak:

black

Optical Properties of Qandilite

Optical Data:

Isotropic.

RL Color:

Light gray with a pinkish tint.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Qandilite in Air**
λ	R	∑ R(λ)
400 nm	14.80
420 nm	14.20
440 nm	13.80
460 nm	13.50
480 nm	13.30
500 nm	13.20
520 nm	13.10
540 nm	13.10
560 nm	13.00
580 nm	13.00
600 nm	13.00
620 nm	13.00
640 nm	13.00
660 nm	12.90
680 nm	12.90
700 nm	12.90

**Calculated Relative Intensity Colors of Qandilite in Air**
Relative Intensity	0%	70%	100%	140%	210%	280%	350%	420%	490%	560%	630%	670%
R

Calculated Properties of Qandilite

Electron Density:

r_electron=3.89 gm/cc
note: r_Qandilite=4.03 gm/cc.

Fermion Index

Fermion Index = 0.04428
Boson Index = 0.95572

Photoelectric:

PE_Qandilite= 11.54 barns/electron
U=PE_Qandilite x r_electron= 44.85 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Qandilite is Not Radioactive

Qandilite Classification

Dana Class:

7.2.5.1 (7)Multiple Oxides

(7.2)(A+ B++)2 X4 Spinel group

(7.2.5)(Titanium subgroup)

7.2.5.1 Qandilite (Mg,Fe)2(Ti,Fe,Al)O4 F d3m 4/m 3 2/m

7.2.5.2 Ulvospinel TiFe2O4 F d3m 4/m 3 2/m

Strunz Class:

IV/B.04-30 IV - Oxides

IV/B - Oxides with metal : oxygen = 3:4 (spinel type M3O4 and related), V/Ti/Ge-Spinels

IV/B.04 - Spinel group, Vuorelainenite - Brunogeierite series

IV/B.04-05 Magnesiocoulsonite MgV2O4 F d3m 4/m 3 2/m

IV/B.04-10 Vuorelainenite (Mn,Fe)(V,Cr)2O4 F d3m 4/m 3 2/m

IV/B.04-20 Coulsonite FeV2O4 F d3m 4/m 3 2/m

IV/B.04-30 Qandilite (Mg,Fe)2(Ti,Fe,Al)O4 F d3m 4/m 3 2/m

IV/B.04-40 Ulvospinel TiFe2O4 F d3m 4/m 3 2/m

IV/B.04-50 Brunogeierite (Ge,Fe)Fe2O4 F d3m 4/m 3 2/m

Other Qandilite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)

See Also:

Links to other databases for Qandilite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

Search for Qandilite using:

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

Visit our Advertisers for Qandilite :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Qandilite Mineral Data :

Ask about Qandilite 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 Qandilite Specimen Label here :

Qandilite

(Mg,Fe++)2(Ti,Fe+++,Al)O4
Dana No: 7.2.5.1 Strunz No: IV/B.04-30
Locality:

Notes: