Magnesiohulsite (original) (raw)
A valid IMA mineral species
About MagnesiohulsiteHide
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Formula:
(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2
Colour:
Black, bluish-grey, greyish white in reflect light.
Crystal System:
Monoclinic
Name:
For its relation to hulsite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2498:9
005c3de2-b278-4c3a-a25d-9f027a026363
IMA Classification of MagnesiohulsiteHide
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IMA Formula:
Mg2Fe3+O2(BO3)
Type description reference:
Classification of MagnesiohulsiteHide
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6.AB.45
6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
24.2.3.2
24 : ANHYDROUS BORATES
2 : A2BO2[XO3]
9.6.5
9 : Borates
6 : Borates of Ti, Sn and Ta
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Mhul | 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 MagnesiohulsiteHide
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Colour:
Black, bluish-grey, greyish white in reflect light.
Hardness:
VHN50=689 - 825 kg/mm2 - Vickers
Density:
4.18(2) g/cm3 (Measured) 4.15 g/cm3 (Calculated)
Optical Data of MagnesiohulsiteHide
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RI values:
_n_α = 1.880 _n_γ = 1.950
δ = 0.070
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Dispersion:
relatively strong
Colour in reflected light:
bluish gray to grayish white
Comments:
X = dark brown; Y = dark green.
Chemistry of MagnesiohulsiteHide
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Mindat Formula:
(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2
Crystallography of MagnesiohulsiteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 10.70(10) Å, b = 3.06(3) Å, c = 5.45(5) Å
β = 94.6°
Ratio:
a:b:c = 3.497 : 1 : 1.781
Unit Cell V:
177.87 ų (Calculated from Unit Cell)
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.665 Å | (10) |
| 2.563 Å | (9) |
| 2.467 Å | (8) |
| 2.018 Å | (8) |
| 5.32 Å | (7) |
| 2.129 Å | (6) |
| 1.9653 Å | (6) |
Geological EnvironmentHide
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Type Occurrence of MagnesiohulsiteHide
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General Appearance of Type Material:
Geological Setting of Type Material:
magnesium skarn borate deposit
Associated Minerals at Type Locality:
Reference:
Yang Guangming, Peng Zhizhong, and Pan Zhaolu (1985): Magnesiohulsite - A new tin-rich borate mineral. Acta Mineralogica Sinica 5(2), 97-101
Synonyms of MagnesiohulsiteHide
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Other Language Names for MagnesiohulsiteHide
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Relationship of Magnesiohulsite to other SpeciesHide
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Other Members of this group:
Related Minerals - Strunz-mindat GroupingHide
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| 6.AB. | Rhabdoborite-(Mo) | Mg12Mo6+1.33O6(BO3)6F2 | Hex. 6 : _P_63 |
|---|---|---|---|
| 6.AB. | Chubarovite | KZn2(BO3)Cl2 | Trig. 32 : _R_32 |
| 6.AB.05 | Hambergite | Be2(BO3)(OH) | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a |
| 6.AB.10 | Berborite | Be2(BO3)(OH,F) · H2O | Trig. |
| 6.AB.15 | Jeremejevite | Al6(BO3)5(F,OH)3 | Hex. 6/m : _P_63/m |
| 6.AB.20 | Warwickite | (Mg,Ti,Fe,Al)2O(BO3) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 6.AB.20 | Yuanfuliite | Mg(Fe3+,Al)O(BO3) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 6.AB.25 | Karlite | (Mg,Al)6.5(BO3)3(OH)4(◻,Cl)0.5 | Orth. 222 : _P_21212 |
| 6.AB.30 | Azoproite | (Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P b a m |
| 6.AB.30 | Bonaccordite | Ni2Fe3+(BO3)O2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P b a m |
| 6.AB.30 | Fredrikssonite | Mg2(Mn3+,Fe3+)(BO3)O2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P b a m |
| 6.AB.30 | Ludwigite | Mg2Fe3+(BO3)O2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P b a m |
| 6.AB.30 | Vonsenite | Fe2+2Fe3+(BO3)O2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P b a m |
| 6.AB.30 | Marinaite | Cu2Fe3+O2(BO3) | Mon. 2/m : _P_21/b |
| 6.AB.30 | Savelievaite | Mg2Cr3+O2(BO3) | Orth. m m m _(_2/_m_2/_m_2/m ) : P b a m |
| 6.AB.35 | Pinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 | Mon. 2/m : _B_2/m |
| 6.AB.35 | Folvikite | Sb5+Mn3+(Mg,Mn2+)10O8(BO3)4 | Mon. 2 : _P_2 |
| 6.AB.40 | Blatterite | Sb5+3(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 6.AB.40 | Chestermanite | Mg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 6.AB.40 | Orthopinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 6.AB.40 | Takéuchiite | (Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 6.AB.45 | Hulsite | (Fe2+,Mg)2(Fe3+,Sn)(BO3)O2 | Mon. 2/m : _P_2/m |
| 6.AB.45 | Aluminomagnesiohulsite | (Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2 | Mon. 2/m : _P_2/m |
| 6.AB.50 | Fluoborite | Mg3(BO3)(F,OH)3 | Hex. 6/m : _P_63/m |
| 6.AB.50 | Hydroxylborite | Mg3(BO3)(OH)3 | Hex. 6/m : _P_63/m |
| 6.AB.55 | Shabynite | Mg5(BO3)(OH)5(Cl,OH)2 · 4H2O | Mon. |
| 6.AB.55 | Wightmanite | Mg5(BO3)O(OH)5 · 2H2O | Mon. 2/m |
| 6.AB.60 | Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 | Hex. |
| 6.AB.65 | Sakhaite | Ca48Mg16(BO3)32(CO3)16 · 2(H2O,HCl) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 6.AB.70 | Harkerite | Ca48Mg16[AlSi4O15(OH)]4(BO3)16(CO3)16 · 2(H2O,HCl) | Trig. 3_m_ _(_32/m ) : R_3_m |
| 6.AB.75 | Pertsevite-(F) | Mg2(BO3)(F,OH) | Orth. m _m_2 : P n _a_21 |
| 6.AB.75 | Pertsevite-(OH) | Mg2(BO3)(OH) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 6.AB.80 | Jacquesdietrichite | Cu2(H2BO3)(OH)3 | Orth. m m m _(_2/_m_2/_m_2/m ) : P m n a |
| 6.AB.85 | Painite | CaZrAl9(BO3)O15 | Hex. 6/m : _P_63/m |
| 6.AB.85 | Rhabdoborite-(V) | Mg12(V5+,Mo6+,W6+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} (x < 1) | Hex. 6 : _P_63 |
| 6.AB.85 | Rhabdoborite-(W) | Mg12(W6+,V5+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} | Hex. 6 : _P_63 |
| 6.AB.90 | Mengxianminite | (Ca,Na)2Sn2(Mg,Fe)3Al8[(BO3)(BeO4)O6]2 | Orth. m _m_2 : F d _d_2 |
Other InformationHide
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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 MagnesiohulsiteHide
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References for MagnesiohulsiteHide
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Localities for MagnesiohulsiteHide
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This 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.
Locality ListHide
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- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
| China (TL) | |
|---|---|
| Hunan Hengyang Changning Co. Dayishan Sn-polymetallic ore field ⓘ Qiliping Sn-Fe deposit (TL) | Yang Guangming et al. (1985) +1 other reference |
| Russia | |
| Chukotka Autonomous Okrug Chukotsky District ⓘ Iten'yurginskoye Deposit | RRUFF Specimen ID: R070223 |
| USA | |
| Alaska Nome Census Area Port Clarence Mining District ⓘ Brooks Mountain | Aleksandrov (1974b) |