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Karlite

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About KarliteHide

01961810015991739154047.jpg
Franz Karl
Formula:
Mg7(BO3)3(OH,Cl)5
Colour:
White to light green
Lustre:
Silky
Hardness:
Specific Gravity:
2.80
Crystal System:
Orthorhombic
Name:
In honour of Dr. Franz Karl (8 July 1918, Bischofshofen/Salzburg, Austria – 15 August 1972, Kiel, Germany), Professor of Mineralogy and Petrography, Christian Albrechts University, Kiel, Germany, for his studies of the geology of the eastern Alps.
This page provides mineralogical data about Karlite.


Classification of KarliteHide

Approved
Approval Year:
1980
First Published:
1981
6.AB.25

6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
10.1.6

10 : Borates with other anions
1 : Borates with halide

Physical Properties of KarliteHide

Silky
Colour:
White to light green
Streak:
White
Hardness:
5½ on Mohs scale
Cleavage:
Perfect
(001)
Density:
2.80 g/cm3 (Measured)    3.02 g/cm3 (Calculated)
Comment:
Measured using the suspension method

Optical Data of KarliteHide

Type:
Biaxial (-)
RI values:
nα = 1.589 nβ = 1.632 nγ = 1.634
2V:
Measured: 24° , Calculated: 22°
Max Birefringence:
δ = 0.045
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none

Chemical Properties of KarliteHide

Formula:
Mg7(BO3)3(OH,Cl)5
IMA Formula:
(Mg,Al)6.5(BO3)3(OH)4(◻,Cl)0.5

Crystallography of KarliteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 17.92 Å, b = 17.6 Å, c = 3.1 Å
Ratio:
a:b:c = 1.018 : 1 : 0.176
Unit Cell V:
977.72 ų (Calculated from Unit Cell)

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014800KarliteBonazzi P, Menchetti S, Sabelli C, Trosti-Ferroni R (1986) Karlite: crystal structure and chemical composition Neues Jahrbuch fur Mineralogie, Monatshefte 1986 253-2621986Tauern Window, Schleigeistal, Zillertaler, Alpen, Austria0293
CIF Raw Data - click here to close

Type Occurrence of KarliteHide

General Appearance of Type Material:
Aggregates of minute needles and prisms elongated parallel to c, up to 10 mm long. Sometimes in rosette-like forms. At a first glance it resembles tremolite-actinolite.
Place of Conservation of Type Material:
Mineralogisches Institut und Museum der Universitat Kiel, Olshausenstr. 40-60, D 2300 Kiel, Germany and at the Institut fiir Mineralogie und Kristallographie, Technische Universitat Berlin, StraBe des 17. Juni 135, D 1000 Berlin 12, Germany.
Geological Setting of Type Material:
Clinohumite-chlorite marble
Reference:
Franz, G., Ackermand, D., Koch, E. (1981) Karlite, Mg7(BO3)3(OH,Cl)5 a new borate mineral and associated ludwigite from the Eastern Alps. American Mineralogist: 66: 872-877.

Synonyms of KarliteHide

Other Language Names for KarliteHide

German:Karlit
Russian:Карлит
Spanish:Karlita

Related Minerals - Nickel-Strunz GroupingHide

6.AB.05HambergiteBe2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pbca
6.AB.10BerboriteBe2(BO3)(OH,F) · H2OTrig.
6.AB.15JeremejeviteAl6(BO3)5(F,OH)3Hex. 6/m : P63/m
6.AB.20Warwickite(Mg,Ti,Fe,Cr,Al)2O(BO3)Orth.
6.AB.20YuanfuliiteMg(Fe3+,Al)O(BO3)Orth.
6.AB.30Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2Orth.
6.AB.30BonaccorditeNi2Fe3+(BO3)O2Orth.
6.AB.30FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.30LudwigiteMg2Fe3+(BO3)O2Orth.
6.AB.30VonseniteFe2+2Fe3+(BO3)O2Orth.
6.AB.35Pinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Mon.
6.AB.40BlatteriteSb5+3(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32Orth. mmm (2/m 2/m 2/m) : Pnnm
6.AB.40ChestermaniteMg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2Orth. mmm (2/m 2/m 2/m)
6.AB.40Orthopinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Orth.
6.AB.40Takéuchiite(Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.45Hulsite(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2Mon.
6.AB.45Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2Mon.
6.AB.45Aluminomagnesiohulsite(Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2Mon. 2/m
6.AB.50FluoboriteMg3(BO3)(F,OH)3Hex.
6.AB.50HydroxylboriteMg3(BO3)(OH)3Hex. 6/m : P63/m
6.AB.55ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2OMon.
6.AB.55WightmaniteMg5(BO3)O(OH)5 · 2H2OMon.
6.AB.60GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3Hex.
6.AB.65SakhaiteCa12Mg4(BO3)7(CO3)4(OH)2ClIso. m3m (4/m 3 2/m) : Fd3m
6.AB.70HarkeriteCa12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2OTrig. 3m (3 2/m) : R3m
6.AB.75Pertsevite-(F)Mg2(BO3)(F,OH)Orth. mm2 : Pna21
6.AB.75Pertsevite-(OH)Mg2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
6.AB.80JacquesdietrichiteCu2(H2BO3)(OH)3Orth. mmm (2/m 2/m 2/m) : Pmna
6.AB.85PainiteCaZrAl9(BO3)O15Hex. 6/m : P63/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

10.1.1TeepleiteNa2[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
10.1.2BandyliteCu[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
10.1.3BerboriteBe2(BO3)(OH,F) · H2OTrig.
10.1.4FluoboriteMg3(BO3)(F,OH)3Hex.
10.1.5BoraciteMg3(B7O13)ClOrth. mm2 : Pca21
10.1.7ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2OMon.
10.1.8/9/10HilgarditeCa2B5O9Cl · H2OTric. 1 : P1
10.1.11SolongoiteCa2(H3B3O7)(OH)ClMon.
10.1.12HydrochlorboriteCa4B8O15Cl2 · 21H2OMon.
10.1.13EkateriniteCa2(B4O7)(Cl,OH)2 · 2H2OHex.
10.1.14VolkovskiteKCa4[B5O8OH]4[B(OH)3]2Cl · 4H2OTric. 1 : P1
10.1.15ChelkariteCaMgB2O4(Cl,OH)2 · 5H2O Or near, with Cl:OH = 3:1Orth.
10.1.16JohachidoliteCaAlB3O7Orth. mmm (2/m 2/m 2/m) : Cmma
10.1.17SatimoliteKNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4·4H2OTrig. 3m (3 2/m) : R3m
10.1.18ChambersiteMn2+3(B7O13)ClOrth. mm2 : Pca21
10.1.19Congolite(Fe2+,Mg)3(B7O13)ClTrig. 3m : R3c
10.1.20EricaiteFe2+3(B7O13)ClOrth.

Other InformationHide

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

References for KarliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Franz, G., Ackermand, D., Koch, E. (1981) Karlite, Mg7(BO3)3(OH,Cl)5 a new borate mineral and associated ludwigite from the Eastern Alps. American Mineralogist: 66: 872-877.
Bonazzi, P., Menchetti, S., Sabelli, C., Trosti-Ferroni, R. (1986) Karlite: crystal structure and chemical composition. Neues Jahrbuch für Mineralogie, Monatshefte: 1986: 253-262.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for KarliteHide

Localities for KarliteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria (TL)
 
  • Tyrol
    • Schwaz District
      • Finkenberg
        • Schlegeisgrund (Schlegeis valley)
G. Franz, D. Ackermann, E. Koch: Amer. Mineral. 66:872-877 (1981)
France
 
  • Occitanie
    • Pyrénées-Orientales
      • Céret
        • Prats-de-Mollo-la-Preste
Dubru. M, (1986) Pétrologie et géochimie du marbre à brucite et des borates associés au gisement de tungstène de Costabonne, (Pyrénées orientales, France) 930p
Russia
 
  • Sakha Republic (Yakutia)
    • Polar Yakutia
      • Dogdo River Basin
        • Tas-Khayakhtakh Range
http://maurice.strahlen.org/yakutia/yakutia.htm
 
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