Hongquiite Mineral Data

Hongquiite Mineral Data

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General Hongquiite Information

Chemical Formula:

TiO

Composition:

Molecular Weight = 63.88 gm

Titanium 74.95 % Ti 100.00 % TiO

Oxygen 25.05 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

TiO

Environment:

Found in platinum ores associated with high-temperature rocks of the garnet-hornblende-pyroxenite facies.

IMA Status:

Not Approved IMA 1976

Locality:

Tao district, Hongqui, China. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

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Hongquiite Crystallography

Cell Dimensions:

a = 4.293, Z = 4; V = 79.12 Den(Calc)= 5.36

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m

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

By Intensity(I/I_o): 2.144(1), 1.081(0.8), 1.529(0.7),

Physical Properties of Hongquiite

Color:

Light white.

Density:

5.36

Diaphaniety:

Opaque

Habit:

Cubic Crystals - Occurs as cubic shaped crystals.

Habit:

Octahedral Crystals - Occurs as octahedral shaped crystals.

Hardness:

5-6 - Between Apatite and Orthoclase

Luster:

Metallic

Magnetism:

Nonmagnetic

Optical Properties of Hongquiite

RL Color:

White with pinkish tint and red internal reflections.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Hongquiite in Air**
λ	R	∑ R(λ)
466 nm	28.60
544 nm	27.50
589 nm	35.80
656 nm	32.60

**Calculated Relative Intensity Colors of Hongquiite in Air**
Relative Intensity	0%	40%	80%	100%	120%	160%	200%	240%	280%	310%
R

Calculated Properties of Hongquiite

Electron Density:

r_electron=5.03 gm/cc
note: r_Hongquiite=5.36 gm/cc.

Fermion Index

Fermion Index = 0.09703
Boson Index = 0.90297

Photoelectric:

PE_Hongquiite= 12.59 barns/electron
U=PE_Hongquiite x r_electron= 63.39 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Hongquiite is Not Radioactive

Hongquiite Classification

Dana Class:

4.2.1.7 (4)Simple Oxides

(4.2)with a cation charge of 2+ (A++ O)

(4.2.1)Periclase group (Isometric, Fm3m)

4.2.1.1 Periclase MgO F m3m 4/m 3 2/m

4.2.1.2 Bunsenite NiO F m3m 4/m 3 2/m

4.2.1.3 Manganosite MnO F m3m 4/m 3 2/m

4.2.1.4 Monteponite CdO F m3m 4/m 3 2/m

4.2.1.5 Lime CaO F m3m 4/m 3 2/m

4.2.1.6 Wustite FeO F m3m 4/m 3 2/m

4.2.1.7 Hongquiite * TiO F m3m 4/m 3 2/m

Strunz Class:

I/A.09-10 I - Elements

I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides

I/A.09 - Honquiite-Tantalcarbide series

I/A.09-10 Hongquiite TiO F m3m 4/m 3 2/m

I/A.09-20 Khamrabaevite (Ti,V,Fe)C F m3m 4/m 3 2/m

I/A.09-30 Tongbaite Cr3C2 P nma 2/m 2/m 2/m

I/A.09-35 Isovite! (Cr,Fe)23C6 F m3m 4/m 3 2/m

I/A.09-40 Haxonite (Fe,Ni)23C6 F m3m 4/m 3 2/m

I/A.09-50 Cohenite (Fe,Ni,Co)3C Pbnm 2/m 2/m 2/m

I/A.09-55 Niobocarbide! (Nb,Ta)C F m3m 4/m 3 2/m

I/A.09-60 Tantalcarbide! TaC F m3m 4/m 3 2/m

Other Hongquiite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

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

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Hongquiite

TiO
Dana No: 4.2.1.7 Strunz No: I/A.09-10
Locality:

Notes: