TERR^ ARGILLACEy^. Opaiut Ui 
2sris. 6. O. colorem pro fitu ad lucem varians dnriufculils ieviuR 
culiis aiaphanus , fragmentis in quje diffiiit , obtafmi- 
culis. 
Syfi. nat. XII. 3. p, gg. n. 6 . «, Silex vagas reflexiona 
et refractione varians , albus. 
Watler. miner, 82. Achates fere pellucida , colores pr(> 
fitu fpectatoris mutans. 
Wdler.fyft miner, l.p. ago. n. 19. Achates fere pel- 
lucida colores fub refractione et refiectione varians 
Habitat ut plurimum aliis lapidilus inktrrent , et fornici 
communis , rarius reniformis ane botryoides , in Poloa‘a 
( prope Radomifcllel , ) in Silefia ( prope Cosemiiz e: 
Scliwentich) ^in Saxonta ( prope Jolianngeoraenitadt 
Ribenflock , Schneeberg et Freyberg ,) prope Franco- 
furtumziff Moenum, HUngaria(propeTfcher',veniza 
heic interdum lichenes includens ^ in Islandiaer insulis 
Feroc , intus utplurirnum parum nitens , interdum fu... 
horaeus, laSeus ,ochroleucus, ex flavefcenti aut viref- 
centi cinereus rarius p rraceus olivaceus aut rubellus , 
aquee guttam interdum ihduders , rarius ; extunc irt 
planam vergentis , aut matris perlarum injiar nitens auC 
pun 3 is quafi argenteis micans. 
7, O. fe-nipellucidus intus ' alds nitens levis dariufc.ilus co- 
lore vivaci pro fitu adlucein vafla , fragmentis ui q'i.* 
diffiiit acatis. ^ 
Syfi. nat. XII. 3.p, (, 3 . n. /'v 0 . Opaius Padeiotn. 
PliniushtH. mund. 37. c. 6 . Hajjelq.it 508. Cronft, miner. 
5. J5. n. Op!a.lu8 Nonnii. 
IFaller./yJi. miner. i.p.rtSr. 19. b. OpaluS colora 
olivari , reUex-one ruber. 
Johann. apncal at. II. La pis prarnantiffimus Jafpis. 
bihHiUt ad fuaic^rn montitim Carpathicoriim in Hunga— 
lia prope Tfcherweniza, argiller ferriferee inclufus ,/ieic 
jam anno 1400 erutus , rarior in Sdxonia prope Frey— 
berg , utplurirnum laatus luci recta ohverfus flavus, 
oblique eam recipiens viridis , flavus, ruber aut caeruleus , 
ftpius fere pellucidus , rarius fere diaphanus ,rariP.nie 
'vtrmtn includens. 
i 
