12 PROFESSOR HEDDLE ON THE MINERALOGY OF SCOTLAND. 
18°5 grains yielded— 
Silica, : d ) 45° 421 
Alumina, . : ‘ OS 
Ferric Oxide, . : 62 874 
Manganous Oxide, . ; *816 
Lime, ' ' : : °6 
Magnesia, . 2°6 
Potash, : : - 708s 
Soda, : : ? milan (ik 
Fluorine, . 1°06 
Water, axon OLE 
100°78 
4. From Botriphnie, Banffshire. Is the matrix of kyanite, in a specimen 
ticketed by ABRAHAM CLaRK of Portsoy. 
Lustre very splendent, colour white ; appeared to be in six-sided plates. 
On 11:°011 grains— 
Silica, . : : , 45e4038 
Alumina, . : ; 2 329,59 
Ferric Oxide, . . cl TPpERSHT 
Manganous Oxide, . ‘031 
Lime, : : 5 , a2 
Magnesia, . : 5 123 
Potash, 7° 836 
Soda, 2°556 
Water, 5512 
Fluorine, . : , : tr. 
LOOP LoL 
Possible impurity, kyanite. 
Was thought Damourite. 
From Granular Limestone. 
5. Occurs in the limestone quarries in the balloch between Glenbucket and 
Glen Nochty, Aberdeenshire. 
Is associated with pyrite, pyrrhotite, rutile, and actynolite. Occurs in 
rosette groups of crystals; colour white ; lustre silvery ; very much resembles 
tale,—for which it was taken, until the hardness was tested. 
