Makarochkinite
A valid IMA mineral species
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About Makarochkinite
Formula:
(Ca,Na)4[Fe2+8Fe3+2Ti2]O4[Si8Be2Al2O36]
Colour:
black
Lustre:
Vitreous
Hardness:
5½ - 6
Specific Gravity:
3.93
Crystal System:
Triclinic
Member of:
Name:
Named in honor of Boris Alexandrovich Makarochkin (Борис Александрович Макарочкин) (1908-1988), Russian chemist and mineralogist who studied rare minerals of the Ilmen Mountains, who worked for many years in the Ilmensky Reserve.
Unique Identifiers
Mindat ID:
2547
Long-form identifier:
mindat:1:1:2547:4
IMA Classification of Makarochkinite
Classification of Makarochkinite
9.DH.40
9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si4O12
9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si4O12
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 for Standard |
|---|---|---|
| Mkr | 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 Makarochkinite
Vitreous
Transparency:
Opaque
Colour:
Black
Hardness:
5½ - 6 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
3.93 g/cm3 (Measured) 3.933 g/cm3 (Calculated)
Optical Data of Makarochkinite
Type:
Biaxial
RI values:
nα = 1.821 - 1.849 nγ = 1.85 - 1.88
Max. Birefringence:
δ = 0.029 - 0.031
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Pleochroism:
Visible
Comments:
X = greenish brown, Y = yellowish brown, Z = reddish brown; Y ≤ X < Z
Chemistry of Makarochkinite
Mindat Formula:
(Ca,Na)4[Fe2+8Fe3+2Ti2]O4[Si8Be2Al2O36]
Element Weights:
Common Impurities:
Na,Mn,Mg
Crystallography of Makarochkinite
Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 10.355 Å, b = 10.751 Å, c = 8.873 Å
α = 105.707°, β = 96.227°, γ = 124.861°
α = 105.707°, β = 96.227°, γ = 124.861°
Ratio:
a:b:c = 0.963 : 1 : 0.825
Unit Cell V:
735.7 ų
Z:
2
Twinning:
absent
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) |
|---|---|---|---|---|---|---|---|
| 0014190 | Makarochkinite | Yakubovich O V, Malinovskii Y A, Polyakov V O (1990) Crystal structure of makarochkinite of the Il'menskii National Forest, Russia Kristallografiya 35 1388-1394 | 1990 | From type locality, a granite pegmatite in mine 400 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.997 Å | (57) |
| 4.779 Å | (29) |
| 3.120 Å | (32) |
| 2.924 Å | (69) |
| 2.676 Å | (77) |
| 2.530 Å | (100) |
| 2.410 Å | (28) |
| 2.075 Å | (39) |
Comments:
Format: d-spacing/Å (I) (hkl)
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 5: Initiation of plate tectonics | <3.5-2.5 |
| 40 : Regional metamorphism (greenschist, amphibolite, granulite facies) |
Type Occurrence of Makarochkinite
General Appearance of Type Material:
equant masses, 5-50 mm across
Geological Setting of Type Material:
granitic pegmatite
Associated Minerals at Type Locality:
Synonyms of Makarochkinite
Other Language Names for Makarochkinite
Relationship of Makarochkinite to other Species
Member of:
Other Members of Rhönite Group:
| Dorrite | Ca4(Mg3Fe3+9)O4(Si3Al8Fe3+O36) | Tric. |
| Høgtuvaite | Ca4[Fe2+6Fe3+6]O4[Si8Be2Al2O36] | Tric. 1 : P1 |
| Kuratite | Ca2(Fe2+5Ti)O2[Si4Al2O18] | Tric. 1 : P1 |
| 'Leucorhönite' | Ca2(Mg,Fe3+,Al)6(Si,Al)6O20 | Tric. |
| Rhönite | Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36] | Tric. 1 : P1 |
| Serendibite | Ca4[Mg6Al6]O4[Si6B3Al3O36] | Tric. 1 : P1 |
| Welshite | Ca4Mg9Sb3O4[Si6Be3AlFe2O36] | Tric. 1 : P1 |
Common Associates
Associations Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 9.DH. | Devilliersite | Ca4Ca2Fe3+10O4[(Fe3+10Si2)O36] |
| 9.DH. | 'Gageite-2M' | (Mn,Mg,Zn)42Si16O54(OH)40 |
| 9.DH. | Bavsiite | Ba2V2O2[Si4O12] |
| 9.DH. | Yuzuxiangite | Sr3Fe3+(Si2O6)2(OH) · 3H2O |
| 9.DH. | Louisfuchsite | Ca2(Mg4Ti2)(Al4Si2)O20 |
| 9.DH.05 | Leucophanite | NaCaBeSi2O6F |
| 9.DH.10 | Ohmilite | Sr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2O |
| 9.DH.15 | Haradaite | SrVSi2O7 |
| 9.DH.15 | Suzukiite | BaVSi2O7 |
| 9.DH.20 | Shcherbakovite | (K,Ba)KNa(Ti,Nb)2(Si4O12)O2 |
| 9.DH.20 | Batisite | BaNaNaTi2(Si4O12)O2 |
| 9.DH.20 | Noonkanbahite | BaKNaTi2(Si4O12)O2 |
| 9.DH.25 | Taikanite | Sr3BaMn2+2(Si4O12)O2 |
| 9.DH.30 | Krauskopfite | BaSi2O5 · 3H2O |
| 9.DH.35 | Gageite | Mn21(Si4O12)2O3(OH)20 |
| 9.DH.35 | Balangeroite | (Mg,Fe2+,Fe3+,Mn2+)42Si16O54(OH)40 |
| 9.DH.40 | Kuratite | Ca2(Fe2+5Ti)O2[Si4Al2O18] |
| 9.DH.40 | Aenigmatite | Na4[Fe2+10Ti2]O4[Si12O36] |
| 9.DH.40 | Dorrite | Ca4(Mg3Fe3+9)O4(Si3Al8Fe3+O36) |
| 9.DH.40 | Serendibite | Ca4[Mg6Al6]O4[Si6B3Al3O36] |
| 9.DH.40 | Rhönite | Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36] |
| 9.DH.40 | Khesinite | Ca4(Mg3Fe3+9)O4(Fe3+9Si3)O36 |
| 9.DH.40 | 'UM1991-29-SiO:FeMgNa' | Na4(Mg5Fe3+7)O4[Si9Fe3+3O36] |
| 9.DH.40 | Høgtuvaite | Ca4[Fe2+6Fe3+6]O4[Si8Be2Al2O36] |
| 9.DH.40 | 'Leucorhönite' | Ca2(Mg,Fe3+,Al)6(Si,Al)6O20 |
| 9.DH.40 | Welshite | Ca4Mg9Sb3O4[Si6Be3AlFe2O36] |
| 9.DH.40 | Wilkinsonite | Na2Fe2+4Fe3+2(Si6O18)O2 |
| 9.DH.40 | Krinovite | Na2Mg4Cr3+2(Si6O18)O2 |
| 9.DH.45 | Sapphirine | Mg4(Mg3Al9)O4[Si3Al9O36] |
| 9.DH.50 | Khmaralite | (Mg,Al,Fe)16[(Al,Si,Be)12O36]O4 |
| 9.DH.55 | 'UM1988-26-SiO:AlMg' | Mg4Al2O[Si3Al2O15] |
| 9.DH.55 | Surinamite | (Mg,Fe)3Al4BeSi3O16 |
| 9.DH.60 | Deerite | Fe2+6Fe3+3(Si6O17)O3(OH)5 |
| 9.DH.65 | Taneyamalite | (Na,Ca)Mn2+12(Si,Al)12(O,OH)44 |
| 9.DH.65 | Howieite | Na(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10 |
| 9.DH.70 | Johninnesite | Na2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2 |
| 9.DH.75 | Agrellite | NaCa2Si4O10F |
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 Makarochkinite
mindat.org URL:
https://www.mindat.org/min-2547.html
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References for Makarochkinite
Localities for Makarochkinite
Showing 2 localities.
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.
Russia (TL) | |
| Pekov (1998) +1 other reference |
| un2sg4.unige.ch (n.d.) |
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The
Pit No. 400, Argayashsky District, Chelyabinsk Oblast, Russia