Hydroxylborite (original) (raw)
A valid IMA mineral species
About HydroxylboriteHide
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Name:
In allusion to its composition, being the HYDROXYL dominant member of the series with fluoBORITE.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:31567:0
87ba5140-ee36-4aaf-bb2a-704e040b7ddb
IMA Classification of HydroxylboriteHide
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Classification of HydroxylboriteHide
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6.AB.50
6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
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 |
|---|---|---|
| Hyb | 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 HydroxylboriteHide
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Cleavage:
Imperfect/Fair
On {0001}, imperfect.
Density:
2.89 g/cm3 (Measured) 2.872 g/cm3 (Calculated)
Optical Data of HydroxylboriteHide
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RI values:
_n_ω = 1.566 _n_ε = 1.531
δ = 0.035
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of HydroxylboriteHide
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Mindat Formula:
Mg3(BO3)(OH)3
Crystallography of HydroxylboriteHide
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Class (H-M):
6/m - Dipyramidal
Cell Parameters:
a = 8.912 Å, c = 3.112 Å
Morphology:
Crystals prismatic with dominant {1010} and without distinct terminal faces; also occurs as radial aggregates.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0009139 | Hydroxylborite | Takeuchi Y (1950) The structure of fluoborite Acta Crystallographica 3 208-210 |  |
1950 | Tallgruvan, Sweden | 0 | 293 |
| 0012664 | Hydroxylborite | Rudnev V V, Chukanov N V, Nechelyustov G N, Yamnova N A (2007) Hydroxylborite, Mg3(BO3)(OH)3, a new mineral species and isomorphous series fluoborite-hydroxylborite series Geology of Ore Deposits 49 710-719 | 2007 | the Titovsky deposit, Sakha-Yakutia Republic, Russia | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.422 Å | (100) |
| 4.45 Å | (82) |
| 2.573 Å | (65) |
| 2.128 Å | (60) |
| 7.69 Å | (52) |
| 2.551 Å | (49) |
| 2.141 Å | (44) |
Comments:
Visyachy area, Sakha-Yakutia Republic, Russia. Data from the type description.
Geological EnvironmentHide
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Type Occurrence of HydroxylboriteHide
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General Appearance of Type Material:
Hexagonal prisms without end faces, about 1-1.5 x 0.1-0.2 mm in size. Commonly as radial and fan-like aggregate.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow (#91968), and the Geology Museum of the All-Russian Scientific Research Institute of Mineral Resources (#M-1663).
Geological Setting of Type Material:
Mineralized skarn, calciphyre, and marble. Clinohumite calciphyre.
Associated Minerals at Type Locality:
Synonyms of HydroxylboriteHide
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Relationship of Hydroxylborite to other SpeciesHide
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Related Minerals - Strunz-mindat GroupingHide
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| 6.AB. | Chubarovite | KZn2(BO3)Cl2 | Trig. 32 : _R_32 |
|---|---|---|---|
| 6.AB. | Rhabdoborite-(Mo) | Mg12Mo6+1.33O6(BO3)6F2 | Hex. 6 : _P_63 |
| 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 | Yuanfuliite | Mg(Fe3+,Al)O(BO3) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 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.25 | Karlite | (Mg,Al)6.5(BO3)3(OH)4(◻,Cl)0.5 | Orth. 222 : _P_21212 |
| 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.30 | Fredrikssonite | Mg2(Mn3+,Fe3+)(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 | Ludwigite | Mg2Fe3+(BO3)O2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P b a m |
| 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.35 | Folvikite | Sb5+Mn3+(Mg,Mn2+)10O8(BO3)4 | Mon. 2 : _P_2 |
| 6.AB.35 | Pinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 | Mon. 2/m : _B_2/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.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 | Orthopinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 | 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.45 | Aluminomagnesiohulsite | (Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2 | Mon. 2/m : _P_2/m |
| 6.AB.45 | Hulsite | (Fe2+,Mg)2(Fe3+,Sn)(BO3)O2 | Mon. 2/m : _P_2/m |
| 6.AB.45 | Magnesiohulsite | (Mg,Fe2+)2(Fe3+,Sn,Mg)(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.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 | 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.85 | Painite | CaZrAl9(BO3)O15 | Hex. 6/m : _P_63/m |
| 6.AB.90 | Mengxianminite | (Ca,Na)2Sn2(Mg,Fe)3Al8[(BO3)(BeO4)O6]2 | Orth. m _m_2 : F d _d_2 |
Fluorescence of HydroxylboriteHide
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Bluish fluorescence under SW UV.
Other InformationHide
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Notes:
Dissolves in concentrated H2SO4, readily reacts with quinalizarin, and remains insoluble in water and dilute HCl.
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 HydroxylboriteHide
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References for HydroxylboriteHide
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Reference List:
Localities for HydroxylboriteHide
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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.
| Russia | |
|---|---|
| Sakha ⓘ Chersky Range | The Chersky Range is within the Saha ... |
| Polar Yakutia Dogdo River Basin Tas-Khayakhtakh Range ⓘ Titovskoe B deposit (TL) | Rudnev et al. (2007) |