92 PROFESSOR HEDDLE ON THE MINERALOGY OF SCOTLAND, 
it was not considered pure enough, or uniform enough, for being analysed 
further than by ascertaining the amount of the water; the determination of 
which showed that it was the same mineral. 
2. From the parish of Kinneff, in Kincardineshire—The road from Bervie 
to Stonehaven is, at a point a little north of where a side road branches to 
the church of Kinneff, cut on its west side into a small cliff of porphyritic 
amygdaloid,—the porphyritically disposed crystals being large twins of grey 
labradorite. 
This porphyry has occasionally druses of considerable size, which are filled 
with large sheafy almost vermilion-coloured crystals of stilbite, smaller ones of 
Heulandite, and small radiating quartz crystals which sheath the two 
zeolites. . 
The quartz is sometimes also capped by spheres of saponite of about the 
size of shot. These spheres have a fibrous structure, a pale olive-green colour, 
and they are extremely soft. 
Thrown into water they fall to pieces, expanding greatly ; thus the specific 
gravity could not be ascertained. They were freed from quartz with extreme 
difficulty. 
1°25 grammes yielded— 
Silica, . : ; . 42-1 
Alumina, 2 5° 948 
Ferric Oxide, . 4:°963 
Ferrous Oxide, . : ; °18 
Manganous Oxide, . : °088 
Lime, ; ; : Be ah 5) 
Magnesia, . : ; 5 R20 O77 
Potash,. . : F ? *276 
Soda, ; , : 5 *464 
Water, . : ; » 22°932 
100°078 
Lost at 212°, 14°092 of the above water; insoluble silica, 1:117 per 
cent. 
3. At the same locality there was also found the same mineral in a massive 
form. It occurred beneath the investing layer of quartz crystals ; it was very 
soft and friable, and was unctuous to the touch. It had a grey colour mottled 
with purple, being in appearance similar to Naples’ soap. Its specific gravity 
is 2°28. 
