62 ] 
47 - Jaspjs. 
4S. X-AZULUS. 
49. Smiris. 
50 CiRCONIUS. 
51. Am4RUs. 
52. L Yc I US- 
53. Chlorogranat 
54- Arena. 
55. Quartzum. 
56. Chalcedonius 
57. Adamas. 
Opake, changing its colour in the fire, not 
melting by iirdf, breaking into convex 
fragments. 
Hardilh, opake, of 3 Iky-blue colour, pot 
lofing its colour or effervefeing by acids 
fprinkled upon it. 
Of no determinate fliape, melting with great 
difficulty, very hard. 
Ponderous, very fhining within, breaking in- 
to incurved plates. 
Tenacious, green, of fhivery texture, 
Fiffile, opake, of a dull colour, and of Ihi- 
very texture, 
us. Green, cryftalline, eafily melted by fire. 
Gonfiding of dry hard rough granulations. 
Refilling the greateft degrees of heat, and all 
acids expept the fluoric: fragments angular. 
Refiiling'the greateft degrees of heat, and al] 
acids: fragments more convex. 
Very hard, evaporating in fire with a flame. 
ORDER VI, ADAMANTINE. 
58. Adamantinus. Refifting heat, fixed, hard, lamellar. 
ORDER VII. AGGREGATE. 
59. Granites. 
60. Gneissum. 
61. Porphyrius. 
62. Amygdalytes. 
163. Breccia, 
64. Arenarius. 
Confifting of granular particles united toge- 
ther without vifiole cement and without 
regular order. 
Of a lamellar texture. 
Cryftalline particles imbedded in a ftony pafte. 
Glandules more or lefs roun^ied imbedded in 
a ftony mafs. 
Fragments of ftone conglutinated by a ftony 
or metallic cement. 
Granulations of filiceous ftones conglutinat- 
ed by a ftony or metallic cement. 
