saxosa. 



stcr'uiit 



EARTHS. AGGREGATE. 64. Arenarius. 203 



Compofed of the fragments of various ftoncs cemented to- 

 gether. 

 Breccia indeterminata. Cron/f, min.feB. 273. 5. 2. 

 S?.xum lapid. faxof. IVallfift. i. p. 430. »/. 9. 

 Found in Dakcarl'ia and Norman and S^veden. 



Compofed of the fragments of various (lones, funple as 

 well as aggregate, cemented together. 

 Voigt. f'^crz, Sftmrnl. n\ Gehirs^s, />. I 5. «. 1 5, 16. 

 Found in the mountains QiThunnoia and Heffe, under Itrata ot 

 bituminous marl. 



64, ARENARIUS. Confiding of grains of fand 

 cemented together : occurring in ftratified moun- 

 tains, and forming entire (Irata, rocks, hills, or 

 mountains: generally of a common form, and 

 breaking into indeterminate fragments, 



Sandjlone, 



A. SimpJcr^ 'With a fillceous cement, 



Elaftic, hard, apyrous, in fomewhat fcaly particles. 



Cos flexiiis. Gafsend --vit. ReieJ'c. 1765. /. 1 55. 



Elartifchcr Stein. Bruebm, chem, ann. 1784. 2. />. 44*» 



Crell chem, ann. 1735. 2. p. 479. . 



Found in Braftl: of a hoary colour, rough, and not elFerveicins 

 with acids : in larger pieces it may be eafily bent backwards 

 and forwards, when it returns into itb former pofition with a 

 f(r.all fonng and a flight degree of crackling noife : in a white 

 heat it does not lofe the leaft quantity of its weight, nor as far 

 as refpe6ts i.s fmailer particles, of its iranfparency. 



Avanturino Hard, taking a fine (hining polifli, confiding of tawny 

 grains unequally tinged. 

 Daubenton Aci, Paf. 1781- /. I --7. 

 Avanturine. Schmeijjer mineral, i. ^.114. 

 Found in Britain-, Spain, Bohemia, and Saxony- 



Cos. Hardilh, brittle, not taking a poUlli, confiding of leder 



equal grains. Gnndpne, 



Cos Cotarin. Syft. nat. xti. ^. p. 61. n. I. 

 Cos arenacea. Wall.f^ft, i. P- \<^0% 

 Sandllone. SckmeiJJer miner aL I. ^'3^4* 

 Siliceous fandftone. Kirxvan. miner. I. p. 364. 

 Sandllone* T/jom/on chem, ^. P' 1 4-0, 



CC 2 



Jiexilis. 



