Hartite Mineral Data

Hartite Mineral Data

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General Hartite Information

Chemical Formula:

C20H34

Composition:

Molecular Weight = 274.49 gm

Hydrogen 12.48 % H

Carbon 87.52 % C

______

100.00 %

Empirical Formula:

C₂₀H₃₄

IMA Status:

Valid Species (Pre-IMA) 1841 (Dana # Added)

Locality:

Hart, Gloggnitz, Austria. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Hartite Image

Images:

Hartite

Comments: White, translucent waxy crystalline hartite in wood.
Location: Santa Barbara Mine, San Giovanni Valdarno, Tuscany, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hartite Crystallography

Axial Ratios:

a:b:c =0.5444:1:0.3534

Cell Dimensions:

a = 11.407, b = 20.952, c = 7.406, Z = 4; alpha = 93.941°, beta = 100.75°, gamma = 80.499° V = 1,711.06 Den(Calc)= 1.07

Crystal System:

Triclinic - PedialH-M Symbol (1) Space Group: P1

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

By Intensity(I/I_o): 5.54(1), 10.38(0.337), 6.59(0.331),

Crystal Structure:

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Bouska V , Cisarova I , Skala R , Dvorak A , Zelinka J , Zak K , American Mineralogist , 83 (1998) p.1340-1346, Hartite from Bilina

Physical Properties of Hartite

Cleavage:

[???] Good

Color:

Colorless, Yellow, White.

Density:

1.036 - 1.06, Average = 1.04

Diaphaniety:

Transparent

Hardness:

1 - Talc

Luster:

Waxy

Streak:

white

Calculated Properties of Hartite

Electron Density:

r_electron=1.20 gm/cc
note: r_Hartite=1.07 gm/cc.

Fermion Index

Fermion Index = 0.00964
Boson Index = 0.99036

Photoelectric:

PE_Hartite= 0.12 barns/electron
U=PE_Hartite x r_electron= 0.15 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Hartite is Not Radioactive

Hartite Classification

Dana Class:

50.3.2.2 (50)Salts of Organic Acids

(50.3)(Hydrocarbons)

(50.3.2)Dana Group

50.3.2.1 Ravatite C14H10 P 2₁ 2

50.3.2.2 Hartite ! C20H34 P1 1

Strunz Class:

IX/B.02-50 IX - Organic compunds

IX/B - Nitrogenfree compounds with C and water, ring structures

IX/B.02 - Kratochvilite - Flagstaffite series

IX/B.02-10 Kratochvilite (C6H4)2CH2 P na2₁ mm2

IX/B.02-20 Simonellite C19H24 Pnaa 2/m 2/m 2/m

IX/B.02-30 Hoelite (C6H4)2(CO)2 P 2₁/a 2/m

IX/B.02-40 Refikite C19H31COOH P 2₁2₁2₁ 2 2 2

IX/B.02-50 Hartite C20H34 P1 1

IX/B.02-52 Fichtelite C19H34 P 2₁ 2

IX/B.02-55 Dinite* C20H36 P 2₁2₁2₁ 2 2 2

IX/B.02-60 Karpatite C24H12 P 2₁/c,P 2/c 2/m

IX/B.02-70 Idrialite C22H14 Unk Ortho

IX/B.02-75 Ravatite C14H10 P 2₁ 2

IX/B.02-80 Flagstaffite C10H22O3 F dd2 mm2

Other Hartite Information

References:

PHYS. PROP.(Am.Min.,Vol.83,p1340-1346,1998)

See Also:

Links to other databases for Hartite :
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 -École des Mines de Paris

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

Hartite

C20H34
Dana No: 50.3.2.2 Strunz No: IX/B.02-50
Locality:

Notes: