248 Third Supplement to Dana's Mineralogy. 



There are four iron ore regions ; (1) the Eastern, running through the State (John- 

 son, Carter, etc. Counties) in front of the Unaka group of mountains; (2) the Dye- 

 stone region skirting the eastern base of the Cumberland and Walden's ridge from 

 Virginia to Georgia, including ihe Sequatchee and Elk valleys; (3) the Cumberland, 

 associated with the coal measures, in the northern part of the State ; (4) the West- 

 ern, occupying a strip about 50 miles wide of the western part of Middle Tennes- 

 # see, running from out of Kentucky to the Alabama line associated with the lower 

 member of the carboniferous limestone. In the 1st, there are Limonite, Hematite 

 and Magnetite ores ; in the 2nd, stratified iron-stone ; in the 3rd, clay iron-stone ; in 

 the 4th, limonite — Copper ores occur at the Ducktown mine; traces are found else- 

 where but no other locality of importance has been discovered. — Galena is found in 

 various parts of East Tennessee, usually associated with blende ; also in middle 

 Tennessee. — Calamine is found in East Tennessee, and the ore of Claiborne has long 

 been known. At several places, the mines promise to be of value. — Gold exists 

 sparingly in southeast Tennessee, in Blount Co., a few miles east of Montvale Springs 

 back of Childowee Mountain; in Monroe, on the waters of Citico creek, in the bed 

 of Cane creek, on the head waters of Tellico river, and on those of Coco or Coqua 

 creek, also in Polk Co. In 1 847, the gold deposited at the U. S. mint amounted to 

 $2 511 ; in 1848, $7,161; in 1849, $5,180; in 1851, $2,377 ; in 1852, $750; in 1853, 

 $149; in all, since 1831, $46,023. 



Silver glance has been found in two localities, both now doubtful. The specimen 

 reported by Dr. Troost, according to the author, probably came from the Carbonif- 

 erous limestone, on or near the Calf-killer creek. 



Localities of coal, marble, hydraulic limestone, and other products are mentioned 

 in the volume. 



W. Kitchell (New Jersey State Geologist) : Second Annual Report of the Geo- 

 logical Survey of New Jersey. 248 pp. 8vo., Trenton, 1856 — The iron and zinc 

 mines of the State are described with much interesting detail. At Mt. Hope tun- 

 nel. Mr. Wurtz detected a mineral which he has not yet examined, but announces as 

 probably new (p. 192). 



C. U. Shepard: Report on the Canton Mine, Georgia. 20 pp. 8vo., 2nd edit. 

 New Haven, 1856 — Contains an account of the minerals of the mine, with indi- 

 cations of three supposed new species called Harrisite, Hitchcockite, and Cherokine. 



2. Crystallography, Formation of Minerals, etc. 



Furnace Products : Hausmann mentions (Soc. Sci. Gott. Nov. 1855) that Man- 

 ganblende occurs along with the cyano-nitrid of titanium, both in the furnaces of 

 Gleiwitz, and the Royal Mines of Silesia ; and Wohler reports the same from the 

 Hartz. They had been taken for magnetic iron. They occur in the scoria which forms 

 in the working of the blast furnaces. The crystals are usually in distinct octahedrons, 

 4 to 5 millimeters in diameter. The color when fresh, is iron-black, and the lustre 

 imperfectly metallic; but becoming brownish-black at surface on exposure. It 

 differs from the native manganblende in being strongly attracted by the magnet, 

 and also in giving the reactions of iron as well as manganese before the blowpipe. 

 B.B. it fuses with very great difficulty to a brownish-black scoria. 



On some pseudomorphs of iron ores, by E. F. Glockkr, (Pogg. xcvi, 262). The 

 paper describes pseudomorphs of hematite (specular iron) after magnetite ; earthy 

 red iron ore after hematite; limonite after magnetite; limonite after hematite, and 

 hematite after limonite; of limonite after spathic iron; of limonite after pyrites and 

 marcasite; of hematite after pyrites. He mentions crystals of the form of magne- 

 tite from near Schonberg in Moravia, which are altered to specular iron. The octa- 

 hedrons have the cleavage of the magnetite. They are similar to the so-called inar- 

 tite, or octahedral specular iron of Breithaupt. 



Goniometer for the measurement of angles of crystals and for optical purposes, 

 with a plate. W. Haidinger. £>gg. xcvii, 590. 



