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Kaxtorpite outcrop, Norra Kärr, Gränna, Jönköping, Jönköping County, Swedeni
Regional Level Types
Kaxtorpite outcropOutcrop
Norra KärrComplex
GrännaTown
JönköpingMunicipality
Jönköping CountyCounty
SwedenCountry

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02784930017272351131728.jpg
First recorded locality for eckermannite s. l., now redefined

Kaxtorpite outcrop, Norra Kärr, Gränna, Jönköping, Jönköping County, Sweden
02784930017272351131728.jpg
First recorded locality for eckermannite s. l., now redefined

Kaxtorpite outcrop, Norra Kärr, Gränna, Jönköping, Jönköping County, Sweden
02784930017272351131728.jpg
First recorded locality for eckermannite s. l., now redefined

Kaxtorpite outcrop, Norra Kärr, Gränna, Jönköping, Jönköping County, Sweden
Latitude & Longitude (WGS84):
58° 6' 2'' North , 14° 34' 0'' East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~0km
GRN:
N39E06
Type:
Outcrop
Köppen climate type:
Dfb : Warm-summer humid continental climate
Mindat Locality ID:
295167
Long-form identifier:
mindat:1:2:295167:9
GUID (UUID V4):
0
Name(s) in local language(s):
Kaxtorpiten ("Eckermannit-typlokaliten"), Norra Kärr nefelinsyenit, Gränna, Jönköpings kommun, Småland, Sverige


The laxtorpite body measures about 150 x 75 m, and is located SW of the Norra Kärr Farm. This being the largest of three kaxtorpite bodies in the Norra Kärr complex. This is found in the central part of the complex and is known for being the first recorded locality for eckermannite sensu lacto. This amphibole is now redefined by IMA in 2014 (IMA2013-136). Re-examination of the holotype material of the original sample analyzed by Törnebohm (1906) confirmed that they both are actually fluoro-leakeite.
NB: eckermannites sensu lacto are found in all three laxtorpite outcrops. Old specimens labelled as "eckermannite, Norra Kärr" does not neccessarily originate from this sublocality.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Eckermannite
Formula: NaNa2(Mg4Al}Si8O22(OH)2
Description: In the characterization of the holotype of eckermannite from Norra Kärr (Adamson, 1942), Li was not recognized (cfr Sundius 1945). The species was redefined by IMA in 2014 (IMA2013-136). Re-examination of the holotype material of the original sample analyzed by Törnebohm (1906) confirmed that they both are actually fluoro-leakeite.
ⓘ Fluoro-leakeite
Formula: NaNa2(Mg2Al2Li)(Si8O22)F2
ⓘ Lorenzenite
Formula: Na2Ti2(Si2O6)O3
Description: Blue-greenish i UV light
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ Pectolite
Formula: NaCa2Si3O8(OH)
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Willemite
Formula: Zn2SiO4
Description: Vivid greenish-yellow in UV light

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘWillemite9.AA.05Zn2SiO4
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘLorenzenite9.DB.10Na2Ti2(Si2O6)O3
ⓘEckermannite ?9.DE.25NaNa2(Mg4Al}Si8O22(OH)2
ⓘFluoro-leakeite9.DE.25NaNa2(Mg2Al2Li)(Si8O22)F2
ⓘPectolite9.DG.05NaCa2Si3O8(OH)
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Hⓘ PectoliteNaCa2Si3O8(OH)
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
LiLithium
Liⓘ Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Oⓘ LorenzeniteNa2Ti2(Si2O6)O3
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ PectoliteNaCa2Si3O8(OH)
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ WillemiteZn2SiO4
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Fⓘ Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Naⓘ LorenzeniteNa2Ti2(Si2O6)O3
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ PectoliteNaCa2Si3O8(OH)
Naⓘ Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2
MgMagnesium
Mgⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Mgⓘ Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2
AlAluminium
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Siⓘ LorenzeniteNa2Ti2(Si2O6)O3
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ PectoliteNaCa2Si3O8(OH)
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ WillemiteZn2SiO4
Siⓘ Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ NephelineNa3K(Al4Si4O16)
CaCalcium
Caⓘ PectoliteNaCa2Si3O8(OH)
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ LorenzeniteNa2Ti2(Si2O6)O3
Tiⓘ TitaniteCaTi(SiO4)O
FeIron
Feⓘ AegirineNaFe3+Si2O6
ZnZinc
Znⓘ WillemiteZn2SiO4

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield
Eurasian PlateTectonic Plate
EuropeContinent
ScandinaviaRegion

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References

Adamson, Olge J. (1942) Eckermannite, a new alkali amphibole. Geologiska Föreningen i Stockholm Förhandlingar, 64 (3) 329-334 doi:10.1080/11035894209446082
Thulin, H. (1996) Norra Kärr. Litofilen. Medlemsblad för Västerås AmatörGeologiska Sällskap, 13. 17-51
Oberti, R., Boiocchi, M., Hawthorne, F. C., Ball, N. A., Harlow, G. E. (2015) Eckermannite revised: The new holotype from the Jade Mine Tract, Myanmar--crystal structure, mineral data, and hints on the reasons for the rarity of eckermannite. American Mineralogist, 100 (4) 909-914 doi:10.2138/am-2015-5132
Tranefors, Hasse, Olsson, Kristina (2017) Norra Kärr – ett återbesök och uppdatering juni 2016 [Norra Kärr – a revisit and update June 2016]. STEIN. Magasin for populærgeologi, 44 (3) 20-27
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