Hedenbergite Mineral Data + 
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- 65.1.3a.1 Diopside CaMgSi2O6 C 2/c 2/m
- 65.1.3a.2 Hedenbergite CaFeSi2O6 C 2/c 2/m
- 65.1.3a.3 Augite (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6 C 2/c 2/m
- 65.1.3a.4 Johannsenite CaMnSi2O6 C 2/c 2/m
- 65.1.3a.5 Petedunnite Ca(Zn,Mn,Fe,Mg)Si2O6 C 2/c 2/m
- 65.1.3a.6 Esseneite CaFeAlSiO6 C 2/c 2/m
- VIII/F.01-10 Clinoenstatite Mg2Si2O6 P 21/c 2/m
- VIII/F.01-20 Clinoferrosilite (Fe,Mg)2Si2O6 P 21/c 2/m
- VIII/F.01-30 Kanoite (Mn,Mg)2Si2O6 P 21/c 2/m
- VIII/F.01-40 Pigeonite (Mg,Fe,Ca)(Mg,Fe)Si2O6 P 21/c 2/m
- VIII/F.01-50 Diopside CaMgSi2O6 C 2/c 2/m
- VIII/F.01-60 Hedenbergite CaFeSi2O6 C 2/c 2/m
- VIII/F.01-70 Johannsenite CaMnSi2O6 C 2/c 2/m
- VIII/F.01-80 Petedunnite Ca(Zn,Mn,Fe,Mg)Si2O6 C 2/c 2/m
- VIII/F.01-90 Augite (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6 C 2/c 2/m
- VIII/F.01-100 Omphacite (Ca,Na)(Mg,Fe,Al)Si2O6 P 2/n 2/m
- VIII/F.01-110 Esseneite CaFeAlSiO6 C 2/c 2/m
- VIII/F.01-120 Spodumene LiAlSi2O6 C 2/c 2/m
- VIII/F.01-130 Jadeite Na(Al,Fe)Si2O6 C 2/c 2/m
- VIII/F.01-140 Aegirine NaFeSi2O6 C 2/c 2/m
- VIII/F.01-145 Namansilite NaMn(Si2O6) C 2/c 2/m
- VIII/F.01-150 Jervisite (Na,Ca,Fe)(Sc,Mg,Fe)Si2O6 C 2/c 2/m
- VIII/F.01-160 Natalyite Na(V,Cr)Si2O6 C 2/c 2/m
- VIII/F.01-170 Kosmochlor NaCrSi2O6 C 2/c 2/m
General Hedenbergite Information |
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 Chemical Formula: |
CaFe++Si2O6 | ||
| Composition: |
Molecular Weight = 248.09 gm | ||
| Calcium 16.15 % Ca 22.60 % CaO | |||
| Iron 22.51 % Fe 28.96 % FeO | |||
| Silicon 22.64 % Si 48.44 % SiO2 | |||
| Oxygen 38.69 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
CaFe2+Si2O6 | ||
| Environment: |
Contact metasomatic rocks. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1819 | ||
| Locality: |
Nordmark, Sweden. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named after the Swedish mineralogist, M. A. L. Hedenberg. | ||
| Synonym: |
ICSD 10226 | ||
| PDF 41-1372 | |||
Hedenbergite Image | |||
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Images:
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Images:
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Hedenbergite Crystallography |
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| Axial Ratios: |
a:b:c =1.0926:1:0.5849 | ||
| Cell Dimensions: |
a = 9.827, b = 8.994, c = 5.261, Z = 4; beta = 105.52° V = 448.03 Den(Calc)= 3.68 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.97(1), 2.53(0.5), 2.56(0.3), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Hedenbergite |
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| Cleavage: |
[???] Perfect, [???] Indistinct | ||
| Color: |
Brownish green, Gray green, Grayish black, Dark green, Black. | ||
| Density: |
3.55 | ||
| Diaphaniety: |
Transparent to translucent to opaque | ||
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
| Habit: |
Crystalline - Fine - Occurs as well-formed fine sized crystals. | ||
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. | ||
| Habit: |
Lamellar - Thin laminae producing a lamellar structure. | ||
| Hardness: |
5-6 - Between Apatite and Orthoclase | ||
| Luminescence: |
Non-fluorescent. | ||
| Luster: |
Vitreous - Pearly | ||
| Streak: |
white green | ||
Optical Properties of Hedenbergite |
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| Gladstone-Dale: |
CI meas= -0.013 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.023 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1981,KPDmeas= 0.2053,KC= 0.2027 |
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| Optical Data: |
Biaxial (+), a=1.699-1.739, b=1.705-1.745, g=1.728-1.757, bire=0.0180-0.0290, 2V(Calc)=56-72, 2V(Meas)=58-63. Dispersion distinct to strong, r > v. | ||
| Pleochroism (x): |
purplish green, pale bluish green, dark bluish green, or deep green. | ||
| Pleochroism (y): |
pinkish purple, pale green, or bluish green. | ||
| Pleochroism (z): |
pale yellowish green, yellow, or brownish yellow. | ||
Calculated Properties of Hedenbergite |
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| Electron Density: |
relectron=3.49 gm/cc |
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| Fermion Index |
Fermion Index = 0.01574 Boson Index = 0.98426 |
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| Photoelectric: |
PEHedenbergite = 9.53 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Hedenbergite is Not Radioactive |
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Hedenbergite Classification |
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| Dana Class: |
65.1.3a.2 (65)Inosilicate Single-Width Unbranched Chains, W=1 | ||
| (65.1)with chains P=2 | |||
| (65.1.3a)C2/c clinopyroxenes (Ca clinopyroxenes) | |||
| Strunz Class: |
VIII/F.01-60 VIII - Silicates | ||
| VIII/F - Inosilicates (chain and band) double chains [Si2O6]4- | |||
| VIII/F.01 - Pyroxene group, Clinopyroxene | |||
Other Hedenbergite Information |
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| References: |
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Heinrich65) | ||
| See Also: |
Links to other databases for Hedenbergite : 1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 - Amethyst Galleries' Mineral Gallery 5 - Applied Mineralogy 6 -Athena 7 - Crocoite.com Mineral Locations 8 - EUROmin Project 9 - Franklin Minerals(Dunn) 10 - Glendale Community College 11 -Google Images 12 -Google Scholar 13 -Handbook of Mineralogy (MinSocAm) 14 -Handbook of Mineralogy (UofA) 15 - HyperPhysics 16 -MinDAT 17 -MinMax(Deutsch) 18 -MinMax(English) 19 - Mineral and Gemstone Kingdom 20 -Mineralienatlas (Deutsch) 21 - Minerals of Wisconsin 22 -QUT Mineral Atlas 23 - Scandinavian mineral gallery 24 - UCLA - Petrography Thin-Sections 25 - WWW-MINCRYST 26 -École des Mines de Paris Search for Hedenbergite using: Visit our Advertisers for Hedenbergite : Translate Hedenbergite Mineral Data : Ask about Hedenbergite here : Print or Cut-and-Paste your Hedenbergite Specimen Label here :
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