Liset, Selje, Stad, Vestland, Norway (original) (raw)

Aegirine

Formula: NaFe3+Si2O6

Description: often found as corona around quartz

Aegirine-augite

Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6

'Allanite Group'

Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

Almandine

Formula: Fe2+3Al2(SiO4)3

'Apatite'

Formula: Ca5(PO4)3(Cl/F/OH)

Barroisite

Formula: ◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2

'Biotite'

Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Description: Found i a boulder of a biotite-bearing eclogite

'Chlorite Group'

'Clinopyroxene Subgroup'

Corundum

Formula: Al2O3

Davidsmithite (TL)

Formula: (Ca,◻)2Na6Al8Si8O32

Type Locality:

Description: = UM1986-//-SiO:AlCa. Refered to as a "new K-poor, Ca-rich nepheline structure mineral" by Smith & Kechid (1986).

Eastonite

Formula: KMg2Al(Al2Si2O10)(OH)2

Epidote

Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)

Ferro-taramite (TL)

Formula: Na(CaNa)(Fe2+3Al2)(Al2Si6O22)(OH)2

Type Locality:

'Garnet Group'

Formula: X3Z2(SiO4)3

Geikielite

Formula: MgTiO3

Description: Mn-rich

Hematite

Formula: Fe2O3

Ilmenite

Formula: Fe2+TiO3

'Kandite'

Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

Kyanite

Formula: Al2(SiO4)O

Lisetite (TL)

Formula: CaNa2Al4Si4O16

Type Locality:

Habit: Found in thin sections as clusters of 100 mikron sized grains. They are sorrounded by a characteristic double corona texture.

Description: In a strongly retrogressed jadeite-clinopyroxene layer in the Liset eclogite pod. Lisetite is found in up to 8mm long laths, pseudomorphs after paragonite (?), which consist of irregularly shaped cluster of lisetite in the center surrounded by a white corona of davidsmithite, The laths are surrounded by an almost continuous corona of joined blackish taramite.

Magnetite

Formula: Fe2+Fe3+2O4

Margarite

Formula: CaAl2(Al2Si2O10)(OH)2

Margarite var. Na-(Mg,Fe)-margarite

'Monazite'

Formula: REE(PO4)

Muscovite

Formula: KAl2(AlSi3O10)(OH)2

Nybøite

Formula: NaNa2(Mg3Al2)(AlSi7O22)(OH)2

Habit: irregular shaped

Colour: pink-purple

Description: Fe-rich. As inclusions in garnet

Paragonite

Formula: NaAl2(AlSi3O10)(OH)2

'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi2]O8

Preiswerkite

Formula: NaMg2Al(Al2Si2O10)(OH)2

Description: as symplectite around kyanite.

Pyrophanite

Formula: Mn2+TiO3

Description: Mg-rich

Quartz

Formula: SiO2

Rutile

Formula: TiO2

Staurolite

Formula: Fe2+2Al9Si4O23(OH)

Taramite (TL)

Formula: Na(CaNa)(Mg3Al2)(Al2Si6O22)(OH)2

Type Locality:

Description: Filling cracks in garnet.

Titanite

Formula: CaTi(SiO4)O

Zircon

Formula: Zr(SiO4)

Zoisite

Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)