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Luinaite-(OH)

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Big Photo

Bald Hornet Claim (Blue Mountain Saddle), North Bend, King Co., Washington, USA
© Christian Bracke

Show Luinaite-(OH) Photos (11)



Formula:
Na(Fe
2+
 
)
 
3
Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
System:Monoclinic
Member of:Tourmaline Group
Name:For the type locality, Luina (Heazlewood district, Tasmania, Australia).
Dimorph of:Schorl


Tourmaline Group.

A monoclinic-pseudorhombohedral member of the tourmaline group. The symmetry reduction is caused by cation ordering.
Can be correctly identified only using high-resolution XRD (SXRD) studies. EDS-, EPMA- and standard PXRD-analyses are insufficient for a correct identification of luinaite-(OH).

NOTE: Only one of the photos uploaded so far shows a SXRD-analysed sample; all other samples may just be normal schorl.

Classification of Luinaite-(OH)

IMA status:Approved 2009
Dana 8th edition ID:61.3.7.

61 : CYCLOSILICATES Six-Membered Rings
3 : Six-Membered Rings with borate groups
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Type Occurrence of Luinaite-(OH)

Type Locality:Mt Cleveland Mine, Luina, Heazlewood district, Tasmania, Australia

Crystallography of Luinaite-(OH)

Crystal System:Monoclinic
Class (H-M):m - Domatic
Space Group:Bm {B1 1m} {Cm} {C1m1}
Space Group Setting:Cm
Cell Parameters:a = 10.408(3) Å, b = 15.991(5) Å, c = 7.189(2) Å
β = 117.44(2)°
Ratio:a:b:c = 0.651 : 1 : 0.45
Unit Cell Volume:V 1,061.88 ų (Calculated from Unit Cell)
Comment:Strongly pseudorhombohedral.
X-Ray Powder Diffraction:
d-spacingIntensity
6.47 (55)
4.26 (52)
4.01 (79)
3.51 (49)
2.98 (48)
2.59 (100)
2.06 (41)
2.05 (44)

Chemical Properties of Luinaite-(OH)

Formula:
Na(Fe
2+
 
)
 
3
Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Essential elements:Al, B, Fe, H, Na, O, Si
All elements listed in formula:Al, B, Fe, H, Na, O, Si

Relationship of Luinaite-(OH) to other Species

Member of:Tourmaline Group
Other Members of Group:

- +
Buergerite
Na(Fe
3+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
F
Chromdravite
Na(Mg
 
3
)Cr
3+
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Chromo-aluminopovondraite
Na(Cr
 
3
)Mg
 
2
Al
 
4
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
Dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Elbaite
Na(Li
 
1.5
Al
 
1.5
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Feruvite
Ca(Fe
2+
 
)
 
3
MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Fluor-dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
Fluor-elbaite
Na(Li
 
1.5
Al
 
1.5
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
Fluor-feruvite
Ca(Fe
2+
 
)
 
3
MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
Fluor-liddicoatite
Ca(Li
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)F
Fluor-schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
Foitite
(□,Na)(Fe
2+
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
OH
Liddicoatite
Ca(Li
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Magnesiofoitite
(□,Na)(Mg
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Olenite
Na(Al
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
(OH)
Oxy-dravite
Na(MgAl
 
2
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
Oxy-rossmanite
☐(LiAl
 
2
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
Oxy-schorl
Na(Fe
2+
 
,Al)
 
3
Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(O,OH,F)
Povondraite
Na(Fe
3+
3
)Mg
 
2
Fe
3+
4
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
Rossmanite
☐(LiAl
 
2
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Tsilaisite
Na(Mn
2+
 
)
 
3
Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Unnamed (Pb-dominant tourmaline)
(Pb,Na)(Li,Al)
 
3
Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(F,OH)
Uvite
Ca(Mg
 
3
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Vanadiumdravite
Na(Mg,Fe
2+
 
)
 
3
(V
3+
 
,Cr
3+
 
,Al)
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Structurally related to group(s):
Tourmaline
A(D
 
3
)G
 
6
(T
 
6
O
 
18
)(BO
 
3
)
 
3
X
 
3
Z

Other Names for Luinaite-(OH)

Synonyms:
IMA 2009-046
Other Languages:

Other Information

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

References for Luinaite-(OH)

Reference List:

- +
IMA approvals - September 2009

Mills, S. J. & Groat, L. A. (2008) New minerals related to tourmaline and possible implications on nomenclature. M&M6 (6th Museums & Mineralogy) Conference, Golden, Colorado, USA, 29.

Internet Links for Luinaite-(OH)

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    • Localities for Luinaite-(OH)

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Tasmania
      • Heazlewood district
        • Luina
    		IMA approvals - Sept. 2009
      • Waratah district
        • Waratah
    		IMA approvals - Sept. 2009; Stu Mills in prep
    R Bottrill & A Tuma collections
    • Victoria
      • Bendoc
    		IMA approvals - Sept. 2009
    Brazil
     
    • Minas Gerais
      • Doce Valley
    		S. Mills type description in prep.
    Norway
     
    • Nordland
      • Tysfjord
    		Kolitsch, U., Husdal, T. A., Brandstätter, F. & Ertl, A. (2011) : New crystal-chemical data for members of the tourmaline group from Norway: occurences of fluor-schorl and luinaite-(OH). Norsk Bergverksmuseum Skrift 46, 17-24.
    • Vestfold
      • Larvik
        • Malerød
    		Peter Andresen collection.
    USA
     
    • Washington
      • King Co.
        • North Bend
    		IMA approvals - Sept. 2009
    Mineral and/or Locality
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    Current server date and time: 15th Jan 2012 21:11:29
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