ANA
ANA
( 56 )
the lateral planes of which unite under angles diagonal passing through the obtuse angles ofalternately of 124° 34' and 55° 26': and the the summit is nearly as one to four,ratio between the heighth of the prism and the
The following are some of the most recent analyses.
Basaltic Hornbl.
Crystal! H. from Cape de Gate,
Lamellar Hornbl. Actynolite of Zillerthal,
by Klapr.
by Klapr. by Laugier.
47.
42.
—. . . ■■
42. 50. Silex
8.
9.8
11. 9.75 Lime
9
10.9
0. 19.25 Magnesia
26.
7.69
—
15.
- 22.69
32. 11. Oxide of Iron
1.15
Oxide of Manganese 5. Oxide of Chrome
98.
94.23
97. 95.75
Fibrans Tremolite,
Comm. Tr.
Grey Tremolite, Baikalite,
by Klapr.
by JLowitz.
, by Lowitz.
65.
- 52.
50.
- 44. Silex
18.
-- 20.
18.
- 20. Lime
10.33
12.
-- 25.
- 30. Magnesia
0.16
0.
- 0.
- 6. Oxide of Iron
6.5
-— 5.
—— Water and Carbonic acid
12.
■- Carbonate of Lime
99.99
96.
98.
100
ANALCIME. Cubic Zeolite J. WurfelZeolith W.
It occurs limpid, or greyish-white ; is amor-phous, mammillated, radiated, or crystallized.Its form is a cube either perfect or with similarmodifications round all the solid angles, pro-ducing symmetrical varieties that distinguish itfrom other species with which it might be con-founded. It has rarely any natural joints visible,hence its fracture is compact conchoidal. Itvaries from translucent to transparent; usuallyscratches glass, sp. gr. 2.0.
Before the blowpipe it intumesces like boraxand melts into a glass, emitting at the same timea phosphoric light. It is composed accordingto Vauquelin , of
58. Silex18. Alumime2. Lime10. Soda
8.5 Water
96.5
3.5 Loss
Var. 1. Sarcolite
Colour flesh red, opake, somewhat softer thanthe preceding: consists, according to Vauquelin ,of
50. Silex20. Alumime4.25 Lime4.25 Soda20. Water.
98.5
1.5 Loss
Analeime occurs chiefly in the glands ofamygdaloid, and other trap rocks.
ANALYSIS of VEGETABLE and ANI-MAL MATTER.
In an interesting memoir on this subjectby Messrs. Gay Lussac and Thenard, 3 thesechemists shew the great difficulties and themany causes of inaccuracy that attend the usualmodes of analyzing vegetable and animal matter,and describe a new method of proceeding, bywhich they consider that they have been able tocombine the carbon and hydrogen with the ut-
■* Racherchet, &c. tom. 3.