The minerals found are albite, almandine, annite, beryl, aquamarine, biotite, columbite, elbaite, microcline, muscovite, and quartz.
32.
It occurs in association with eosphorite, moraesite, hurlbutite, beryllonite, amblygonite, apatite, tourmaline, topaz, muscovite, microcline and quartz.
33.
He wrote especially on the means of determining the different feldspars, and is credited with the discovery of microcline ( a triclinic potash-feldspar ).
34.
When megascopically developed, the texture may consist of distinct pink and white lamellae representing exsolved white albite ( NaAlSi 3 O 8 ) in pink microcline.
35.
Probably the most famous mineral from the area is amazonite, a bluish form of microcline feldspar that is relatively rare in other parts of the world.
36.
Sodalite-syenites in which sodalite very largely or completely takes the place of nepheline occur in Greenland, where they contain also microcline-perthite, aegirine, arfvedsonite and eudialyte.
37.
Associate minerals include : microcline, nepheline, aegirine, lamprophyllite, lorenzenite, catapleiite, murmanite, arfvedsonite, sodalite, aenigmatite, rinkite, l�venite, titanite and titanian magnetite.
38.
The facies presents itself now as a banded augengneiss with amygdular eyes of microcline and plagioclase surrounded by foliation minerals like very fine quartz, albite, granular clinozoisite and mica lamellae.
39.
Serandite has been found in association with aegirine, analcime, arfvedsonite, astrophyllite, eudialyte, fluorite, leucophanite, mangan-neptunite, microcline, nepheline, sodalite, and villiaumite.
40.
It occurs in association with quartz, narsarsukite, calcite, fluorite, ancylite, molybdenite, leucosphenite, lorenzenite, galena, albite, pectolite, apophyllite, leifite, microcline and arfvedsonite.
