MINERALOGY. 



Oryctogno- Rhomboidal. Rhomboid about S'.S'. Cleavage m 

 T- direction of lateral planes of six-sided prism. Streak 

 *~~<~~ i ' red. Hardness =2.0. 2.5. Sp. gr. 6.7- *.2. 



Is divided into two subspecies, viz. Common and 

 Hepatic Cinnabar. 



FIKST SUBSPECIES. 



Common COM M o N C i s x A n A R, Ja meson. 



cinnabar. External Characters. Colours cochineal-red, scar- 



let-red, and carmine-red. Besides massive, disseminat- 

 ed, dendritic, and in granular concretions ; it also 

 occurs crystallized in six-skied prisms. Internally alter- 

 nates from shining to glimmering ; lustre adamantine, 

 verging on semi-metallic. Fracture fine-grained uneven, 

 even, conchoidal, and earthy. Alternates from opaque 

 to transparent. Yields a scarlet-red shining streak. 



Japan. 



Cuntiit. Pfrtf. Mercury, 



Sulphur, . H-7,-. 99-25 



Klaproth, Beit, b- iv. s. 1719. 



Geognotiic and Geographic Situations It occurs most 



abundantly in the coal formation, and les plentifully 



us in primitive rocki. There are con- 



riii mineral at i rniola, and 



that most 

 cury of commcrcf i- obtained. 



SECOKO SUBSPECIES. 



HBPATIC CINNABAR, Jainetou~- Quecksil 

 art, ll'erner. 



External Characters. Colour intermediate between 

 dark cochineal-red 



565 



whitish oxide of zinc, which is often, in the same spe- Oryctogno. 



cimen, found adhering to the black oxide of iron. ^j-":' < 



Uses. This ore occurs abundantly in the United 

 States of America, and promises to be a valuable ac- 

 quisition to that country. 



OEDER XIII. SULPHUR. OM* 



Schwefel, Mohs. SUI.'PIUJR. 



Three axes. Prismatic. Hardness = 1.5. 2.J. 

 Sp. gr. = 1.9. 3.6. 



GENUS I. 



1. RED ORPIMEXT, or RUBY SULPHUR, or HBMI- Ked orpi. 

 PRISMATIC SCLPIIUR, Jameson. Hemi-prismatisches racnt> 

 Schwefcl, Mofis. Rolhes Rauschgelb, H 'truer. 

 . Prism 107 42'. Cleavage in the direction of the 

 diagonals of the prism, but not perfect. Streak orange- 

 yellow and aurora-redjJjIardness = 1.5. 2-0. Sp. 

 gr. = 3.3. 3i4. 



External Characters* Cole 

 massive, disseminated, 

 crystallized in obliquu ft 



Hepatic 

 cinnaiwr. 



aurora-red. Occurs 

 ir membranes, and 

 ivisins, variously mo- 

 and bevelments. 

 linous, inclining to ad&- 

 gometimes passing into 

 '- semi-transparent, 

 rsd itreak. 



Bannat. 



69 







lost 



ic. Fracture even 

 Mercury, 

 Sulphur, 

 Carbon, 



-.DAL SfmiVn, Yellow 



Pouts 



occur* in considerable masses in 

 minous-shalc, at Almaden in Spain, in 

 and Sib> 



z,nc. Rt D /isc. or RCD ORE or ZINC, Jameton. 

 Red Oxide of /inc. Bruce. 



External Character!. Colours blood-red and aurora- 

 red. Occurs massive, and disseminated. Internally 

 fresh fracture shining ; after long exposure to the air it 

 becomes dull, and even covered with a pearly crust. 

 Cleavage undetermined. Fracture conchoidal. Trans- 

 lucent on the edges, or opaque. Easily scratched by 

 the knife. Brittle. Affords a streak which is brownish- 

 yellow, approaching to orange. Specific gravity 6.220. 

 Con. Parti, /.me, 



Oxygen, 



Oxides of Manganese and Iron, 8100 

 Bruct, American Min. Jour. p. 99- 

 Geognotiic and Geographic Situation*. This mineral 

 hag been hitherto found only in North America, where 

 it occurs in several of the iron-mines in Sussex County, 

 New Jersey ; as at the Franklin, Stirling, and Hut- 

 gers mines, and near Sparta. In some instances it is 

 imbedded in foliated granular limestone; while in 

 others, it serves as a basis in whkh magnetic ironstone 

 occurs, either in crystals or grains. At Franklin, it 

 also assumes a micaceous form, and is imbedded in a 



Ternon-yellow. 



Ifstalactitic, reniform, botry 

 Hn granular and concentric curved lamellar 

 concretions, and crystallized in oblique four-sided 

 prisms, and in 4}t<kg|Af|]ttj|jUed pyramids. Splen- 

 dent. ^Cjn adamantine and 



rnall leaves trans- 

 - streak. Stctilc. 



Turkey. 



ipnur,- . . 38 100 



Klaprol/i, Beit. b. v. s. 238. 



Geogiioitic and Geographic Situation. It occurs in 

 veins in secondary and primitive rocks in Germany, 

 Hungary, China, Mexico, and United States. 



3. PRISMATIC SULPHUR, Jameson. Prismatischer 

 Schwefel, Mu/u. Natlirlicher Sen weft!, sulphur. 



Prismatic. Pyramid = 1 07 ', 1 :';U3 J . 



8'. Cleavage pyramidal, and in the direction of prism 

 102. 41'. Streak white or sulphur-yellow. Hardness 

 = 1.5 2.5. Sp.gr. !.<). 2.1. 

 FIRST SL-DSPEI 



COMMON SULPHUR, Jameton. tiemeiner N'aturlicher Commo 

 Schwefel, Werner. sulphur. 



Eilernul Charactert. Colour yellow. Occurs ma=- 

 sive, disseminated, in granular concretions, and crys- 

 tallized in acute double six-sided pyramids. Internally 



3 



