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Babingtonite

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William Babington
Formula:
Ca2(Fe,Mn)FeSi5O14(OH)
System:
Triclinic
Colour:
Dark greenish-black
Lustre:
Vitreous
Hardness:
5½ - 6
Name:
Named after Dr. William Babington [May 21, 1756 Portglenone, near Coleraine, County Antrim, Northern Ireland, UK - April 29, 1833 London, England, UK, physician and mineralogist, curator of the John Stuart, 3rd Earl of Bute mineral collection until 1792, founding member and President (from 1822 to 1824) of the Geological Society of London and author of noted systematic books on mineralogy (1796, 1799).

Classification of Babingtonite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
9.DK.05

9 : SILICATES (Germanates)
D : Inosilicates
K : Inosilicates with 5-periodic single chains
65.4.1.2

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
4 : Single-Width Unbranched Chains, W=1 with chains P=5
14.18.38

14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
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Type Occurrence of Babingtonite

Year of Discovery:
1824

Occurrences of Babingtonite

Geological Setting:
Veins cutting granitic pegmatites and diorites, cavities and vugs in mafic volcanic rocks and gneisses, skarns.

Physical Properties of Babingtonite

Vitreous
Diaphaneity (Transparency):
Opaque
Colour:
Dark greenish-black
Hardness (Mohs):
5½ - 6
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {001}
Good on {010} and {100}
Fracture:
Irregular/Uneven
Density:
3.34 - 3.37 g/cm3 (Measured)    3.26 g/cm3 (Calculated)

Crystallography of Babingtonite

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 7.5Å, b = 12.18Å, c = 6.68Å
α = 86.3°, β = 93.59°, γ = 112.19°
Ratio:
a:b:c = 0.616 : 1 : 0.548
Z:
2
Morphology:
Stubby, prismatic striated crystals

Crystallographic forms of Babingtonite

Crystal Atlas:
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Click on an icon to view
Babingtonite no.1 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

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Edge Lines | Miller Indicies | Axes

Transparency
Opaque | Translucent | Transparent

View
Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Babingtonite

Type:
Biaxial (-)
RI values:
nα = 1.700 nβ = 1.710 nγ = 1.725
2V:
Measured: 50° (2), Calculated: 76°
Max Birefringence:
δ = 0.025
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v strong
Pleochroism:
Visible
Comments:
X= deep green
Y= lilac-brown
Z= pale to deep brown

Chemical Properties of Babingtonite

Formula:
Ca2(Fe,Mn)FeSi5O14(OH)
Essential elements:
All elements listed in formula:
Common Impurities:
Ti,Al,Mg,Na

Relationship of Babingtonite to other Species

Series:
Forms a series with Manganbabingtonite (see here)
Other Members of Group:
ManganbabingtoniteCa2(Mn,Fe)FeSi5O14(OH)
ScandiobabingtoniteCa2(Fe2+,Mn)ScSi5O14(OH)
9.DK.05LithiomarsturiteLiCa2Mn2Si5O14(OH)
9.DK.05ManganbabingtoniteCa2(Mn,Fe)FeSi5O14(OH)
9.DK.05MarsturiteNaCaMn3Si5O14(OH)
9.DK.05Nambulite(Li,Na)Mn4Si5O14(OH)
9.DK.05Natronambulite(Na,Li)(Mn,Ca)4Si5O14OH
9.DK.05RhodoniteMnSiO3
9.DK.05ScandiobabingtoniteCa2(Fe2+,Mn)ScSi5O14(OH)
9.DK.05Fowlerite
9.DK.10SantaclaraiteCaMn4[Si5O14OH](OH) · H2O
9.DK.15SaneroiteNa2(Mn,Mn)10Si11VO34(OH)4
9.DK.20Hellandite-(Y)(Ca,REE)4Y2Al(Be,Li)2-xB4Si4O22(OH)2
9.DK.20Tadzhikite-(Ce)(Ca,Ce)4(Ce,Y)2(Ti4+,Fe3+,Al)[B4Si4O22](OH)2
9.DK.20Mottanaite-(Ce)Ca4(CeCa)AlBe2(Si4B4O22)O2
9.DK.20CiprianiiteCa4[(Th,U)(REE)]Al◻2(Si4B4O22)(OH,F)2
9.DK.20Hellandite-(Ce)(Ca,REE)4Ce2Al(Be,Li)2-xB4Si4O22(OH)2
14.18.1Nambulite(Li,Na)Mn4Si5O14(OH)
14.18.2Natronambulite(Na,Li)(Mn,Ca)4Si5O14OH
14.18.3ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2O
14.18.4NorrishiteKLiMn23+(Si4O10)O2
14.18.5Shafranovskite(Na,K)6(Mn,Fe)3Si9O24 · 6H2O
14.18.6AbswurmbachiteCuMn63+(SiO4)O8
14.18.7Donpeacorite(Mn2+,Mg)Mg[SiO3]2
14.18.8KanoiteMn2+(Mg,Mn2+)Si2O6
14.18.9Caryopilite(Mn,Mg)3(Si2O5)(OH)4
14.18.10Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8
14.18.11Tirodite
14.18.12Manganhumite(Mn2+,Mg)7(SiO4)3(OH)2
14.18.13BustamiteCaMn2+(Si2O6)
14.18.14GlaucochroiteCaMn2+SiO4
14.18.15Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2O
14.18.16SantaclaraiteCaMn4[Si5O14OH](OH) · H2O
14.18.17FerrobustamiteCaFe2+(Si2O6)
14.18.18JohannseniteCaMn2+Si2O6
14.18.19NeltneriteCaMn63+(SiO4)O8
14.18.20OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2O
14.18.21InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
14.18.22OrientiteCa8Mn103+(SiO4)3(Si3O10)3(OH)10 · 4H2O
14.18.23RuiziteCa2Mn23+[(OH)2|H2Si4O13] · 2H2O
14.18.24BostwickiteCaMn6Si3O16 · 7H2O
14.18.25KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2O
14.18.26LithiomarsturiteLiCa2Mn2Si5O14(OH)
14.18.27SéranditeNa(Mn2+,Ca)2(HSi3O9)
14.18.28KvanefjelditeNa4(Ca,Mn)(Si3O7)2(OH)2
14.18.29MarsturiteNaCaMn3Si5O14(OH)
14.18.30RaiteNa4Mn32+Ti0.25Si8O20(OH)2 · 10H2O
14.18.31Richterite{Na}{CaNa}{Mg5}(Si8O22)(OH)2
14.18.32Byelorussite-(Ce)NaBa2Ce2MnTi2[Si4O12]2O2(F,OH) · H2O
14.18.33Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
14.18.34Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
14.18.35PyroxmangiteMnSiO3
14.18.36Dannemorite
14.18.37Neotocite(Mn,Fe,Mg)SiO3 · H2O
14.18.39ManganbabingtoniteCa2(Mn,Fe)FeSi5O14(OH)
14.18.40ÖrebroiteMn32+(Sb5+,Fe3+)(SiO4)(O,OH)3

Other Names for Babingtonite

Name in Other Languages:

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Babingtonite

Reference List:
Washington, H.S. & Merwin, H.E. (1923) On Babingtonite. American Mineralogist: 8: 215-223

American Mineralogist: 17: 295-303.

Zeitschrift für Kristallographie: 135: 355-373.

Internet Links for Babingtonite

Specimens:
The following Babingtonite specimens are currently listed for sale on minfind.com.

Localities for Babingtonite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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