Ferrobustamite
A valid IMA mineral species - grandfathered
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About Ferrobustamite
Formula:
CaFe2+(Si2O6)
May contain divalent Mn replacing Fe.
Colour:
Colorless, pink to brown.
Hardness:
6
Specific Gravity:
3.09
Crystal System:
Triclinic
Member of:
Name:
Named for being the iron analogue of bustamite.
Unique Identifiers
Mindat ID:
1511
Long-form identifier:
mindat:1:1:1511:6
GUID
(UUID V4):
(UUID V4):
923d2c94-9d51-4bcc-b82e-4544956eb6a3
IMA Classification of Ferrobustamite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
CaFe2+Si2O6
First published:
1948
Classification of Ferrobustamite
9.DG.05
9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains
9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains
65.2.1.3
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
2 : Single-Width Unbranched Chains, W=1 with chains P=3
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
2 : Single-Width Unbranched Chains, W=1 with chains P=3
14.18.17
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Fbst | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Ferrobustamite
Transparency:
Translucent
Colour:
Colorless, pink to brown.
Hardness:
6 on Mohs scale
Cleavage:
Perfect
{100}, perfect; {110}, {110}, good
{100}, perfect; {110}, {110}, good
Density:
3.09 g/cm3 (Measured) 3.09 g/cm3 (Calculated)
Optical Data of Ferrobustamite
Type:
Biaxial (-)
RI values:
nα = 1.640 nγ = 1.653
2V:
Measured: 60°
Max Birefringence:
δ = 0.013
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak
Comments:
X' Λ c = 44° in section perpendicular to the zone of cleavages.
Chemistry of Ferrobustamite
Mindat Formula:
CaFe2+(Si2O6)
May contain divalent Mn replacing Fe.
May contain divalent Mn replacing Fe.
Elements listed:
Common Impurities:
Ti,Mg
Crystallography of Ferrobustamite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Cell Parameters:
a = 7.862 Å, b = 7.253 Å, c = 13.967 Å
α = 89.73°, β = 95.47°, γ = 103.48°
α = 89.73°, β = 95.47°, γ = 103.48°
Ratio:
a:b:c = 1.084 : 1 : 1.926
Unit Cell V:
770.85 ų (Calculated from Unit Cell)
Z:
6
Twinning:
Simple twins on {100}.
Comment:
Space Group: A1
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0000607 | Ferrobustamite | Yamanaka T, Sadanaga R, Takeuchi Y (1977) Structural variation in the ferrobustamite solid solution American Mineralogist 62 1216-1224 |  | 1977 | Ofuku mine, Yamaguchi Prefecture, Japan | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.270 Å | (100) |
| 3.049 Å | (80) |
| 2.278 Å | (65) |
| 3.470 Å | (60) |
| 3.84 Å | (55) |
| 2.696 Å | (30) |
| 7.67 Å | (25) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-𝑇 alteration and/or metamorphism | |
| 31 : Thermally altered carbonate, phosphate, and iron formations |
Type Occurrence of Ferrobustamite
Place of Conservation of Type Material:
n.d.
Geological Setting of Type Material:
chert nodules in a skarn in dolostone
Associated Minerals at Type Locality:
Reference:
Tilley, C.E. (1948) On iron-wollastonites in contact-skarns: an example from Skye. American Mineralogist: 33: 736-738.
Synonyms of Ferrobustamite
Other Language Names for Ferrobustamite
Relationship of Ferrobustamite to other Species
Member of:
Other Members of this group:
| Barrydawsonite-(Y) | Na1.5Y0.5CaSi3O8(OH) | Mon. 2/m : P21/b |
| Bustamite | CaMn2+(Si2O6) | Tric. 1 : P1 |
| Cascandite | CaScSi3O8(OH) | Tric. 1 |
| Dalnegorskite | Ca5Mn(Si3O9)2 | Tric. 1 : P1 |
| Mendigite | Mn2Mn2MnCa(Si3O9)2 | Tric. 1 : P1 |
| Murakamiite | LiCa2Si3O8(OH) | Tric. 1 : P1 |
| Pectolite | NaCa2Si3O8(OH) | Tric. 1 : P1 |
| Schizolite | NaCaMnSi3O8(OH) | Tric. 1 : P1 |
| Serandite | NaMn2+2Si3O8(OH) | Tric. 1 : P1 |
| Tanohataite | LiMn2Si3O8(OH) | Tric. 1 : P1 |
| Vistepite | SnMn4B2Si4O16(OH)2 | Tric. 1 : P1 |
| Wollastonite | Ca3(Si3O9) | Tric. 1 : P1 |
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 9.DG. | Calcinaksite | KNaCa(Si4O10) · H2O |
| 9.DG. | Barrydawsonite-(Y) | Na1.5Y0.5CaSi3O8(OH) |
| 9.DG. | Paratobermorite | Ca4(Al0.5Si0.5)2Si4O16(OH)(H2O)2 · (Ca · 3H2O) |
| 9.DG. | Alvesite | NaKZrSi6O15 · 2H2O |
| 9.DG.02 | Steedeite | NaMn2[Si3BO9](OH)2 |
| 9.DG.02 | Nolzeite | NaMn2[Si3BO9](OH)2 · 2H2O |
| 9.DG.05 | Bustamite | CaMn2+(Si2O6) |
| 9.DG.05 | Pectolite | NaCa2Si3O8(OH) |
| 9.DG.05 | Serandite | NaMn2+2Si3O8(OH) |
| 9.DG.05 | Wollastonite | Ca3(Si3O9) |
| 9.DG.05 | Wollastonite-1A | CaSiO3 |
| 9.DG.05 | Tanohataite | LiMn2Si3O8(OH) |
| 9.DG.05 | Schizolite | NaCaMnSi3O8(OH) |
| 9.DG.05 | Murakamiite | LiCa2Si3O8(OH) |
| 9.DG.05 | Dalnegorskite | Ca5Mn(Si3O9)2 |
| 9.DG.07 | Cascandite | CaScSi3O8(OH) |
| 9.DG.08 | Plombièrite | [Ca4Si6O16(OH)2 · 2H2O] · (Ca · 5H2O) |
| 9.DG.10 | Clinotobermorite | [Ca4Si6O17 · 2H2O] · (Ca · 3H2O) |
| 9.DG.10 | Riversideite | Ca5(HSi3O9)2 · 2H2O |
| 9.DG.10 | Tobermorite | Ca4Si6O17(H2O)2 · (Ca · 3H2O) |
| 9.DG.12 | Jusite | Na2Ca15Al4Si16O54 · 17H2O |
| 9.DG.12 | Kenotobermorite | Ca4Si6O15(OH)2(H2O)2 · 3H2O |
| 9.DG.15 | Foshagite | Ca4(Si3O9)(OH)2 |
| 9.DG.20 | Jennite | Ca9(Si3O9)2(OH)8 · 8H2O |
| 9.DG.20 | Kamenevite | K2TiSi3O9 · H2O |
| 9.DG.25 | Paraumbite | K3Zr2H(Si3O9)2 · nH2O |
| 9.DG.25 | Umbite | K2(Zr,Ti)Si3O9 · H2O |
| 9.DG.30 | Sørensenite | Na4SnBe2Si6O16(OH)4 |
| 9.DG.32 | Escheite | Ca2NaMnTi5[Si12O34]O2(OH)3 · 12H2O |
| 9.DG.35 | Xonotlite | Ca6(Si6O17)(OH)2 |
| 9.DG.40 | Hillebrandite | Ca2(SiO3)(OH)2 |
| 9.DG.45 | Zorite | Na8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2O |
| 9.DG.45 | Chivruaiite | Ca4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2O |
| 9.DG.50 | Haineaultite | (Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8 · 5H2O |
| 9.DG.55 | Epididymite | Na2Be2Si6O15 · H2O |
| 9.DG.60 | Eudidymite | Na2Be2Si6O15 · H2O |
| 9.DG.65 | Elpidite | Na2ZrSi6O15 · 3H2O |
| 9.DG.65 | Patynite | NaKCa4[Si9O23] |
| 9.DG.67 | Whelanite | Cu2+2Ca6[Si6O17(OH)](CO3)(OH)3 · 2H2O |
| 9.DG.70 | Fenaksite | (K,Na)4(Fe,Mn)2(Si4O10)2(OH,F) |
| 9.DG.70 | Litidionite | CuNaKSi4O10 |
| 9.DG.70 | Manaksite | KNaMnSi4O10 |
| 9.DG.70 | Yusupovite | Na2Zr(Si6O15) · 2.5H2O |
| 9.DG.70 | Enricofrancoite | KNaCaSi4O10 |
| 9.DG.75 | Tinaksite | K2Na(Ca,Mn2+)2TiO[Si7O18(OH)] |
| 9.DG.75 | Tokkoite | K2Ca4[Si7O18(OH)](OH,F) |
| 9.DG.75 | Senkevichite | CsKNaCa2TiO[Si7O18](OH) |
| 9.DG.80 | Canasite | K3Na3Ca5Si12O30(OH)4 |
| 9.DG.80 | Fluorcanasite | K3Na3Ca5Si12O30F4 · H2O |
| 9.DG.85 | Miserite | K1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2O |
| 9.DG.90 | Frankamenite | K3Na3Ca5(Si12O30)(F,OH)4 · H2O |
| 9.DG.92 | Charoite | (K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2O |
| 9.DG.95 | Yuksporite | K4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3 |
| 9.DG.97 | Eveslogite | (Na,K,Ca,Sr,Ba)48 [(Ti,Nb,Mn,Fe2+)12Si48O144(OH)12](F,OH,Cl)14 |
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.
Internet Links for Ferrobustamite
mindat.org URL:
https://www.mindat.org/min-1511.html
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References for Ferrobustamite
Reference List:
Localities for Ferrobustamite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Brazil | |
| Andrezza Azzi et al. (2018) |
Canada | |
| Locock (1994) |
| SHEARD et al. (2012) |
| Sheard (2010) +1 other reference |
Germany | |
| Habel (2006) |
| |
| Besteman | |
Greenland | |
| Petersen et al. (2004) |
| Tegner (1997) +1 other reference |
Italy | |
| Stoppa F. |
Japan | |
| Excalibur Mineral Co. specimen +1 other reference |
| Excalibur Mineral Co. (Tony Nikischer) |
| Yamada (2004) | |
| Shimazaki H. |
| Etsuo Uchida (1986) |
| D Ishiyama (2000) |
| Matsueda (1983) |
| Shimazaki (1980) |
| Econ Geol (1980) |
| Uehara et al. (2014) |
| Econ Geol (1980) | |
South Africa | |
| Von Bezing (1991) |
UK | |
| Mason (1975) |
| Tilley (1948) +2 other references |
| |
| Tilley (1948) +2 other references |
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Lichtloch 25, Mansfeld, Mansfeld-Südharz, Saxony-Anhalt, Germany