J60 



STEATITE. 



Not decomposed by acids. 



Localities. — English. Near the Lizard 

 Point, Cornwall, with Serpentine. Caer- 

 narvonshire, at Glyder Rock, and Moel Sia- 

 bod. Church Bay, Anglesea. Amlwch, 

 Anglesea. Near Egremont, in Cumberland. 

 Holybush Hill, Herefordshire. — Scotch. 

 Portsoy, Banffshire, with Serpentine. Bogie 

 Quarry, near Raith, Fifeshire. Chapel 

 Quarry, near Kirkcaldy, in encrinital lime- 

 stone. Hebrides, Shetlands. Skye. — Irish. 

 Antrim, near the Causewa}^, and Duiiluce 

 Castle. Banagh, Donegal. Kilmacrenen 

 Mountains, near Loch Swilly. — Foreign. 

 Freiberg, in Saxony. Schlaggenwald, in 

 Bohemia, pseudomorphous, after Quartz or 

 Calc Spar. Gopfersgriin, in Bayreuth. New 

 Jersey, Pennsylvania, Vermont, New Hamp- 

 shire, Massachusetts, and other parts of 

 the United States. Potton, Canada East. 



Name. From a-riu^, suet, from its greasy 

 feel. 



Brit. Mus., Case 35. 



M. F. G. Wall-case 40 (Canada). Horse- 

 shoe Case, Nos. 1056, 1057, 1071 to 1082, 

 1113. 



Slabs of Steatite are used for lining fur- 

 naces and stoves. When ground, it is em- 

 ployed for diminishing the friction of ma- 

 chinery. It is also made, in Germany, into 

 gas burners, which possess the advantage of 

 not corroding, nor becoming stopped up. 

 The white varieties, or those which become 

 so by calcination, are employed in the manu- 

 facture of porcelains; others are used for 

 fulling. The Arabs, according to Shaw, 

 use Steatite in their baths instead of soap, 

 to soften the skin ; and Humboldt states 

 that the Otomaques, a savage race, in- 

 habiting the banks of the Oronoco, are 

 almost entirely supported during three 

 months of the year by eating a species of 

 Steatite, which they first slightly bake, and 

 then moisten with water. 



The material generally used for orna- 

 mental carvings in China, is the well-known 

 Chinese Steatite in its natural state, or 

 artificially tinged Avith the most diversified 

 colours, (See Agalmatolite.) AtHing-po 

 (180 miles S. of Shanghai) and Tse-Kong- 

 sa, where these objects are principally made, 

 they are extremel}'- cheap, but are held in 

 very slight estimation compared with arti- 

 cles of crystalline limestone or marble. 

 {Hochstetter.) 



" If on a steatite you breathe, the smell 

 Is earthy, but to the tongue adheres not. 

 In many things like talc, and pot-stone, with 



STELLITE. 



Less of silex and magnesia, and 

 Of iron still a smaller portion."* 



Steinbutter, or Stonebutter. A fine 

 clay, which is said to be spread on bread and 

 eaten instead of butter, by the workmen 

 employed at the sandstone quarries at KiflF- 

 hausen in Germany. 



Steinheilite. a variety of lolite, oc- 

 curring with Copper Pyrites at Orijerfvi 

 in Finland. 



Analysis, by Stromeyer ; 



Silica 48-54 



Alumina . .' . . 31*37 

 Magnesia . . . .11-31 

 Protoxide of iron . . . 5-69 

 Protoxide of manganese . 0-70 

 Loss by heat . . .1-69 



99-65 



Name. After Count Steinheil, governor 

 of Finland, 



Brit. Mus., Case 36, 



Steinheilite is used for stones of rings and 

 breast-pins, and is considered by jewellers 

 an inferior variety of Sapphire. 



Steinkohle. Stone-Coal. See Anthra- 

 cite. 



Steinmannite, Fhillips, Zippe, Nicol. 

 An impure variety of Galena. Occurs in 

 octahedrons with a cubical cleavage ; also 

 massive, in botryoidal and reniform aggre- 

 gations. Colour lead-grey. Lustre metallic. 

 Fracture uneven, Sectile. H. 2-5. S.G. 

 6-83. 



Camp. Sulphide of lead and antimony. 



BB decrepitates violently: on charcoal 

 fuses readily, giving ofF sulphurous acid and 

 fumes of antimony, and yielding a metallic 

 globule, which finally aflbrds a bead of 

 silver. 



Locality. Przibram in Bohemia, Avith 

 Native Silver, Quartz, Blende and Iron 

 Pyrites, 

 'Name. After the chemist, Steinmann. 



Brit. Mus., Case 8. 



Steinmark, Werner. See Lithomarge. 



Steinol, or Rock Oil, Werner. See Bi- 

 tumen, Maphtiia, and Seneca Oil. 



Steinsalz, Werner. See Rock Salt. 



Stellite, Thomson. A white, translucent 

 and silky variety of Scolezite, occurring in 

 concentric stellar groups of fine rhombic 

 prisms, in greenstone, at Kilsyth in Scotland. 

 H. 3 to 3-5. S.G. 2 6. 



* Werneria, or Short Characters of Earths, by 

 Terra; Filius, 1805, p. 29. 



