OBSERV AT IONS* T 9 
It is very tender j the flru&ure is 
fibrous } the fibres are ftraight, and com¬ 
monly divergent from one fide. 
It breaks partly into regularly angular# 
partly into finall, fplittered and wedge¬ 
like pieces. It is found moftly in fome- 
what large and long angular and grain¬ 
like pieces, with a refplendent furface t 
often alfo in diftinft conchoidal pieces# 
the convexity of which is towards the 
furface, covered with the fpherical protu¬ 
berances j fometimes it is found entire 1 
when fcratched, it thews a yellowifh 
grey trace j it is hard, but may be cut 
with a filej its gravity is always confi- 
derable} fometimes great, and fometimes 
very great. 
“ The brown haematites is the only 
fofiil to which it bears a refemblance j 
but there is a fufficient difference with 
refpeft to external figure and to colour 
both in mafs, and when reduced to 
powder and, above all, with refped 
to hardnefs and weight, to enable us to 
C a diftinguifii 
