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Aeschynite-(Y) from
Urstad Feldspar Mine, Hidra, Flekkefjord, Agder, Norway


Locality type:Mine
Classification
Species:Aeschynite-(Y)
Formula:Y(TiNb)O6
Chemical Analyses:
Oxide wt%:
1
Nb2O517.99 %
Ta2O50.89 %
TiO232.91 %
SnO20.12 %
SiO20.38 %
UO24.01 %
ThO27.69 %
(Y,Er)2O328.76 %
(Ce,La,Di)2O31.97 %
FeO1.48 %
MnO0.27 %
CaO1.02 %
PbO0.06 %
MgO0.04 %
Na2O0.22 %
K2O0.19 %
H201.88 %
Total:99.88 %
Sample references:
1Type Specimen
Comments:Brøgger (1879) gave a crystallographic description of a black mineral from Urstad without chemical analysis. He thought it to be identical with aeschynite (From Miask, which later was named aeschynite-(Ce)). In Brøgger (1906) the mineral were described in detail, and gave it the name Blomstrandine. He states on p. 104 the that aeschynite from Miask is a Cerium-Aeschynit and that the blomstrandine from Hitterö was a "Yttrium-Aeschynit".
A part of a crystal weighing 3kg and chunks up to 20 kg has been noted.
Habit:Platy after {010}, with the dominant form {010}, {130}, {001}. Forms also observed: {110}, {120}, {111}, {101}, [001}
Colour:Brownish black, metamict with thin brownish alteration
Quality for species:Good crystals or rich for species - important (!)
Confirmation
Validity:Valid - Type Locality
Data
Mineral Data:Click here to view Aeschynite-(Y) data
Locality Data:Click here to view Urstad Feldspar Mine, Hidra, Flekkefjord, Agder, Norway
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:192
Long-form Identifier:1:3:192:0
GUID (UUID V4):0
Nearest other occurrences of Aeschynite-(Y)
0.9km (0.5 miles) ⓘIgletjødn Feldspar Quarry (Igletjern), Hæstad, Hidra, Flekkefjord, Agder, Norway
1.0km (0.6 miles) ⓘMæåsen (Medåsen), Hæstad, Hidra, Flekkefjord, Agder, Norway
1.4km (0.8 miles) ⓘVeisdal feldspar quarry, Hidra, Flekkefjord, Agder, Norway
1.6km (1.0 miles) ⓘSlådelslia, Rasvåg feldspar mines, Hidra, Flekkefjord, Agder, Norway
1.8km (1.1 miles) ⓘReseraua, Rasvåg feldspar mines, Hidra, Flekkefjord, Agder, Norway
31.9km (19.8 miles) ⓘEitland Feldspar Quarry, Austad, Lyngdal, Agder, Norway
80.8km (50.2 miles) ⓘFrøyså, Iveland, Agder, Norway
81.6km (50.7 miles) ⓘBrattekleiv Feldspar Quarry (Lauvland 04), Lauvland, Evje og Hornnes, Agder, Norway
82.5km (51.2 miles) ⓘSteinsfjellplassen Pegmatite Locality, Evjemoen, Evje og Hornnes, Agder, Norway
83.6km (51.9 miles) ⓘMølland, Iveland, Agder, Norway
References
 
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