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Plate XXIV.
Figures 1 and 2. Molydanite
1. Molybdenite, M o l y b d ä n g l a n z, sulfur molybdenum,
lamellar parts ingrown with white quartz
faint yellow tinge of molybdenum, from which
Valais in Switzerland.
2. Likewise, shape of the rarely occurring crystals, six-sided panel with straight edges due to the combination
of the hexagonal base faces with the prism.
Figures 3 and 4. Chrome ore.
3. C h r o m i t, C h r o m e i s e n e r z, coarse, sometimes with
Chromocher plated, from Baltimore in North America.
4. Likewise, crystal, the octahedron.
Fig. 5-10. Antimony minerals.
5. Antimony, crystal form, the rhombus similar to the hexahedron, the end edges of which are = 87 ° 35 ', the end corners
just blunted by the base planes.
6. Antimonite or antimonite, crystal form, combination of the orthorhombic prism of 90 ° 54 'with
the longitudinal surfaces blunting the sharp edges and
with two orthorhombic pyramids.
7. Likewise, stalked stems that are curved and striped lengthways
Crystals, which are also the prism with the longitudinal surfaces
and at the end show pyramid surfaces, but usually
are indistinct, like those at Wolfsberg on
Resin occur.
8. The same, clump-shaped-radial through thin crystal needles,
which form individual smaller tuft-shaped groups and
by such larger masses; from Przibram in Bohemia.
9. Pyrantimonite, R o t h s p i e ß g lan z e r z, needle-shaped
Crystals, which are clustered up in a cluster of tufts and rays
Fissures of gray quartz have grown on top;
von Bräunsdorf in Saxony.
Fig.
10. Senarmontite, antimony oxide, white to colorless, with
intergrown octahedra of Oued-Hamimim in the
Constantine Province in Algeria
Fig. 11-20. Arsenic minerals.
11. A r s e n, kidney-shaped, with crooked secretion,
tarnished black, in places slightly shiny metallic,
from Andreasberg am Harz.
12. Auripigment, yellow sulfur arsenic, crystalline leafy, from Turkey.
13. Likewise, crystal form, combination of the orthorhombic
Prism of 117 ° 49 'with the longitudinal curses and a
Transverse dome of 83 ° 37 '.
14. Likewise, small ones grown on gray marl and one
grown crystals from Neusohl in Hungary.
15.R e a l g a r, r o t h e s Sulfur arsenic, crystal form,
Combination of the clinorhombic prism of 74 ° 26 '
with the transverse, longitudinal and base surfaces and a front one
Hemipyramid.
16. Likewise, crystals grown on gray marl of
Kapnik in Hungary.
17. Pimples, arsenic pebbles, short-prismatic cry stalls grown up, which have a very blunt longitudinal dome at the ends
show from Freiberg in Saxony.
18. A r s e not, arsenous acid, grown octahedron, as
Product of an earth fire, from the Auvergne.
19. Pharmacolite, crystal form, tabular combination
of the klinorhombifchen longitudinal curses with a prism and
a hemipyramid.
20. Likewise, from white stalky to fibrous individuals
compound spherical groups, which grew up and
are partly reddish in color from erythrin; from the
old cobalt mines near Wittichen in the Black Forest