[ 243 ] 
9 i, Stibium. 
92 . Tellurium, 
93 - ARSENICU^^, 
94. COBALTUM, 
95. Magnesium. 
96. Tunisstenum. 
Greyilii-white; very brittle ; of a lamellar 
and radiated texture ; melting in a red 
heat, and becoming firft a greyilh-white 
oxyde, afterwards an hyacinthme glals, 
and at laft evaporating in a white vapour; 
dcpofiting a white precipitate if jts folution 
in muriatic acid be diluted with water: 
fpecific gravity 6,702. ' . 
Blueifh-white; very brtttle ; of a laminar 
texture; eafily melting, and boiling and 
evaporating if the heat be increafed ; bu^n- 
iu /before the blowpipe with a lively blue 
flame the edges of which are green, and at 
lad evaporating in a white fmoke ; depo- 
fiting a white "precipitate if its folution m 
nitro muriatic acid be largely diluted with 
water: fpecific gravity 6,115. . 
Blueilh-white; extremely brittle ; fubhming 
in a white powder in a moderate heat with- 
out melting, & eniittinga ftrongfinell refem- 
blinggarlic ; its fiibliraed powder giving its 
foliuion in water an acid talle, and turning 
vegetable blues red ; fpecific gravity 8,310. 
Blucilh-grey with often a djade of red, hard- 
ilh, vtry brittle ; melting with difficulty, 
burning in a violent heat with a red name; 
attraSed by the magnet ; giving a reu co- 
lour to its ffihition in nitric acid, and pre- 
cipitating a blue powder with the addition 
of potafs: fpecific gravity 8,150. 
Iron-grey or brown, opake, hard, very 
brittle, melting with great difficulty ; at- 
iraSed by the magnet when reduced to 
powder; mixed with nitre and expofed a 
fufficient lime to heat, the mixture when 
thrown into water exhibiting a green, then 
a purple, then a fcarlet colour, all which 
at lalldifappear: fpecific gravity 7,000. 
Brownifli-red, internally blueifh, brittle, ex- 
tremely hard; not attrafted by the magnet; 
melting with great difficulty, when heated 
is gradually converted from a black to a yel- 
low oxyde, which affumes ablue colour with 
the muriatic acid: fpecific gravity 17,600, 
H h 2 
