Black prismatic kaersutite crystal 1,2 cm tall on tuff matrix.
Formula :
NaCa2(Mg,Fe2+)4Ti3+[OH/AlSi3O11]2
System: monoclinic Hardness:5-6 Rarity:not common
Strunz id:VIII/F.10-150 -
SILICATES
Name origin: For the locality at Qaersut (Kaersut), Uummannaq (Umanak) Firth, northern Greenland
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 Specimen weight:65 gr.
 Crystal size:1,2 cm tall
 Overall size: 50mm x 38 mm x 25 mm
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