20 
304. 
306. 
307. 
308. 
309. 
310. 
Mineralogical Cabinet. 
ORDER V. MICA. 
Genus I. Evcntore-Mica. 
Sp. 1. Rhombohedral Euchlore-Mica. Triv. Copper 
Mica. Chem. Arseniate of Copper. 
L. Huel Tamar Mine, England. In six-sided tabular 
erystals. 
Sp.2.* * * * * 
Sp. 3. Pyramidal Euchlore-Mica. Triv. Uran-Mica. 
Chem. Phosphate of Uranium. 
. L. Cornwall. In green cubes; also in quadrangular and 
hexagonal tables. 
Genvs IJ. Coparr-Mica. 
Sp. 1. Prismatic Cobalt-Mica. 'Triv. Cobalt Bloom. 
Chem. Arseniate of Cobalt. 
L. Joachimstal. In a peach blossom red efflorescence. 
Genus III. Iron-Mica. 
Sp. 1. Prismatic Iron-Mica. Triv. Vivianite. Chem. 
Phosphate of Iron. 
L. Bodenmais, Bavaria. In bluish green prismatic crys- 
tals, upon an aggregate of iron pyrites and quartz. 
L. New-Jersey. In radiating crystals. 
L. Salisbury, Connecticut. Earthy variety; in a blue 
powder or crust, upon haematite. 
Genus IV. Grapuire-Mica. 
Sp. 1. Rhombohedral Graphite-Mica. 'Triv. Plumba- 
go. Chem. Carburet of Iron. 
L. New-Jersey. Crystallized in thin tabular crystals, ap- 
parently modifications of the six-sided prism;  ac~ 
companied by serpentine, somewhat crystallized also, 
jn its structure, and carbonate of lime. 
