CONTENT S< 
S E G T ». 
I, Loofe 
xxvn 
2. Semi-indurated 
XXVII. 
3. Indurated 
XXVIII. 
F, United with a metallic calx 
XXIX. 
J. With iron. Y/hite iron ore 
XXX., 
2. With copper 
- XXXIV.. 
3. With lead — - 
XXXVII. 
. Siliceous — — 
XL 
A, The diamond 
I. Colourlefs 
XLII. 
2. Red, or the ruby 
XLIII. 
B. The fapphire — — 
XLIY. 
C, 
Yellow 
2. Yellowifh green. The Chryfolite 
3. Blueifh green. The Beryll 
D. The emerald - — — 
E, .. Quarter ' 
1 . Pure 
J. Solid 
B. Grained 
C. Sparry 
D. Criftallifed 
2. - Impure quartz — 
A. Mixed with a black martial clay 7 
B, - — — — with a. red copper calx 
B. Flint — — 
The opal 
A. The fangenon 1 
B. The white opal > « - 
C. The cat’s eye j 
XLV. 
XLVL 
XLVIL 
XLVIIL 
U 
LL. 
LL 
LII. 
LIIL. 
LIIL. 
LIY. 
LY. 
The onyx 
The chalcedony 
The carneiian 
The fardonyx 
The agate 
G 
2. 
3 « 
4' 
5 < 
6 . 
7.. The common flint 
Chert — — - - 
, Jafper — « 
I-. Pure - 
2. Martial 
H, Rhombic quarts or feltfpat 
LYL 
LYIL, 
LYin. 
LIX.. 
LX. 
LXL„ 
LXIIL 
LXIY. 
LZIV. 
LXY. 
LXVI. 
3. The, 
