PLATE V. 
Figs. 1 and 2.- —Kyanite, Disthene. 
1. Kyanite, light blue, oblique rhombic prism, with truncation of the lateral edges, from St. Gothard. 
2. The same , two crystals joined as twins, oblique rhombic prism, with truncation of the obtuse lateral edges. 
Figs. 3—5.—Staurolite. 
3. Staurolite , reddish brown, primary form a right rhombic prism, from Daupliine. 
4. The same, with truncation of the acute lateral edges and of the obtuse angles, two half crystals united twin-wise in 
the direction of the long axis, from St. Gothard. 
5. The same, with truncation of the acute lateral edges, twins, in the form of a cross. 
Figs. 6 and 7. —Andalusite. 
6. Andalusite, primary form a right rhombic prism, with truncation of the acute angles, pearl-grey, from Sisens in the 
Tyrol. 
7. Hodov)-Spar or Chiastolite , four segments of crystals united vertically ; the intervening spaces are filled up with clay- 
slate, from St. Jago di Compostella in Spain. 
Figs. 8— 11. —Tourmaline. 
8. Brown vertically striated Tourmaline, a nine-sided prism, with three sharpened rhombohedral planes, 1'rom the Ziller- 
thal in the Tyrol. 
9. The same , dark brown, with three rhombohedral planes at the extremity, which make the nine-sided prism pointed, 
from Modum in Norway. 
10. Rose-red Nolle Tourmaline, or rubellite, three crystals aggregated as a triplet, with straight truncation of the apex, 
so that the rhombohedral planes have disappeared; each crystal forms a six-sided prism, from Slatousk in the Urals. 
11. Green Precious Tourmaline, in yellowish dolomite; the crystal to the left presents three rhombic terminal planes (the 
primary form being a rhombohedron), and six rliomboidal lateral planes, arising from the truncation of the basal edges (of the 
hexagonal prism). The other crystal on the right presents the rhombohedron with truncation of the vertex, and united to the 
nine-sided prism. From Campo Longo on the south side of St. Gothard. 
Figs. 12 and 13. —Dichorite, Peliom, or Iolite. 
12. Peliom , primary form a right rhombic prism, with truncation of the acute lateral edges and all the basal edges, dark 
blue, from Bodenmais in Bavaria. 
13. The same , light blue, with play of white, the so-called lynx-sapphire, cut as a stone for a ring, from Ceylon. 
Figs. 14 and 15.—Augite. 
14. Common Augite, dark brown, an oblique rhombic prism, with truncation of the acute angles and of the obtuse 
lateral edges, from Frascati near Rome. 
15. Green Augite, diopside or baikalite, green and white, an oblique rhombic prism, with truncation of all the lateral and 
basal edges, from Piedmont. 
Figs. 16—18.— Hornblende, Amphibole. 
16. Dark-green Hornblende, or Actinolite, primary form an oblique rhombic prism, from Greiner in the Tyrol. 
17. Black or Basaltic Hornblende, an oblique rhombic prism, with truncation of the acute lateral and acute basal edges, 
from Bohemia. 
18. Long-fibrous Hornblende, green asbestus, from Pfitsch in the Tyrol. 
Fig. 19.— Hypersthene. 
19. Paulite or Hypersthene, copper-red inclining to blackish, with distinct structure in oblique rhombic plates, a frag¬ 
ment, from the island of St. Paul’s. 
Fig. 20.— Mountain Wood. 
20. Mountain Wood, or Wood Asbestus , fibrous, yellowish-brown, differs from common asbestus by containing water, from 
Sterzing in the Tyrol. 
Figs. 21—23.—Serpentine, Ophite. 
21. Noble Serpentine, greenish yellow, in right rectangular prisms, with truncation of the lateral edges and of the basal 
angles and edges, from Snarum in Norway. 
22. Dark-green Serpentine, streaked and mottled, polished as the lid of a box, from the Apennines. 
23. White Mottled Serpentine , a mixture of serpentine, talc, and chalk, so-called green marble, Ophicalite or Verde de 
Corsica duro, from Corsica. 
Fig. 24.—Omphacite. 
24. Schiller-Spar, diallagite or smaragdite, in granular mixture with common granite, from Gefrees in the Fichtelgebirge. 
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