168 
NON-METALLIC MINERALS. 
103 and 104. Chalcedony, with 
Dcdessite in dendritic shapes, form- 
ino' the so-called “ Moss-agates.” 
Galgenherg. 
105. Chalcedony, in cross fis¬ 
sures in Melaphyre, the latter 
having a slaty structure. The 
Chalcedony has also penetrated 
between the laminoe. 
Galgenherg. 
106. Segment of an Amygda¬ 
loid, the outer part very irregular 
in consequence of the first deposit 
of calc spar having been decom¬ 
posed and removed. The internal 
filling of Chalcedony also very 
irregular, probably belonging to 
two different systems. 
Galgenherg. 
107. Frao’ment of an Amygda- 
< _ ' 
LOiD composed externally of Chal¬ 
cedony, on which follows Ame¬ 
thyst, then stalactitic Chalcedony. 
Galgenherg. 
108. Amygdaloid lined with 
Amethyst, on the crystals of 
vdiich are small plates of specular 
Iron Ore. A large Calc Spar 
crystal in the interior. 
Galgenherg. 
109. Portion of an Amygdaloid, 
the outer part very irregular from 
fragments of the coating of Deles- 
site ; in the interior fine scaleno- 
hedral crystals of Calc Spar. 
Galgenherg. 
no. Amygdaloid, lined with 
Amethyst crystals, on which is a 
fine acute rhombohedron of Calc 
Spar. 
Galgenherg. 
110a and 110b. Two halves of 
an Amygdaloid, lined with Chal¬ 
cedony, followed by Amethyst 
crystals, and having Calc Spar well 
crystallized in the central cavity. 
111. Portion of an Amethyst 
Amygdaloid, showing by impres¬ 
sion the former presence of ra¬ 
diated Calc Spar. 
Nahe, near Oherstein. 
112. Amygdaloid of Quartz, 
showing the impressions of crys¬ 
tals of Calcite which no longer 
exist. 
Galgenherg. 
113. Amygdaloid, showing im¬ 
pressions of scaleuohedral crys¬ 
tals of Calc Spar in Amethyst. 
Galgenherg. 
114. Amygdaloid, showing 
similar pseudomorphous impres¬ 
sions in Chalcedony. 
Galgenherg. 
115. Chalcedony Amygda¬ 
loid with pseudomorphous hollows 
on the outside, showing that Calc 
Spar crystals had been first de¬ 
posited. 
Galgenherg. 
116. Chalcedony Amygda¬ 
loid, with numerous pseudomor¬ 
phous impressions of Calc Spar 
crystals. 
Uruguay. 
117. Irregular filling of a fissure 
in Melaphyre with Agate-jasper, 
Amethyst, and Ilarmotome, a hy¬ 
drous silicate of Alumina and 
Baryta. 
New Tunnel, Oherstein. 
118. Filling of a fissure in 
Melaphyre with Agate-jasper, Calc 
Spar, and very fine Cliabasite, a 
hydrous silicate of alumina and 
lime. 
Oherstein. 
118a. Fragment of an Amygda¬ 
loid, in which have been deposited 
Chalcedony and semi-opal, fol¬ 
lowed by crystallized Amethyst, 
and Apophyllite, a hydrous silicate 
of lime and potash. 
India. 
119. Segment of an A^iygda- 
LOID of Agate-jasper and Ame¬ 
thyst, with the very rare admix¬ 
ture of Copper Pyrites. 
Oherstein. 
120 and 121. Portions of very 
irregular Amygdaloids with Preh- 
iiite and Red Oxide of Copper. 
