1 64 EARTHS. SILICEOUS. 55 . Qiiartzum. 
eristaiiim. The furface marked wiih very fine parallel grooves, oi 
common form. 
Karsten Lejie mineral. I. p. 98. Barn, ind, i. p. 25. z. p. 91. 
Found m the mines of Saxony and Hungary : colour v\hitc, vl 9 ' 
let, or yellowilh-brotvn. 
glolulusum. Of a more or lefs rounded form, pellucid. 
Quartz, feleft. vagum. Syjl. nut. xii, 3./ 66. n. 7, 8, 
Quartz in roundifh grains. Janiei/hn miner. \ . p. 153. 
1. Of a more or lefs perfeflly globular form, 
Compart. 
Hollow within, 
Comprefled. 
2. Of a more or lefs perfertly oval form. 
3. Refembling an almond in figure, 
4. Kidney-form, 
e. Tuberous. 
, ... f 
Found detrehed in the beds or banks of rivers in various parts 
Europe, ARe, and Africa-, or comparted with other follils ‘I’ 
Hungary, Saxony, &c. colour generally white. 
eylindrkutn. Separating into cylindrical piecc.s. 
Kartt, Lejke mimral. \ , p. 105, 1 06, 
Born. ind. /oft, r. p. 25. 
1. With the cylinders parallel. 
2. With the cylinders diverging. 
Found near Schemni% in Hungary, in Saxony, and in other 
of the continent : colour vyhite, fubopake, with the cyliads^* 
thiner or thicker. 
gramilare. Separating into granular fragments. 
Kard. Lejke mineral. 1 . p. 106. 
Granular quartz. Kirnuan miner, l. p. 2.15. 
Quartz in grains. Schmetfser miner. \. p. q^. ^ 
Found commonly in fmall grain.', fometimes detached, fotf'^j 
times comparted together, in Nor<v;ay, Spain, France, 
Saxony: colour white, variegated, greenilh, red, or yeH^ ^ 
brown : the grains are fometimes fo difpofed as to reflc^‘ 
fine fplendour when poliftied. 
ytillatifium. Gradually depofited by water impregnated with partic; 
of quartz, and often covering other bodies as 
a bark. 
Stalaft. qiiartzof. granular. 5)7?. war. xii. /. 1 85. ». 9. 
Stalartitic quartz. Kirni. an mineral, l. p. 24;. 
Stalartitieal quartz. Schmeifser miner. 1. p. 94. 
