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Siliceous Genus, ift Family. Common Jafper.’ Its colours are milk white, or grevifh wM<t* or yellowifli whire, citron. iftbe.fa/honey'“l ochre yellow browmfh yellow, bnck, Cochenille reÄ b b f° Wnilh dark red > yellowilh or reddilh brown, hver brown, or blacktfh brown, P elive, canary, or dark greyn (blue or black it feems haye not occurred *;, or yariegated, foot- ted or veined with many of thofe With Citherin ^gemaffes, orblunt detached fragmems. Mr. Gerhard teils us he has found Tome irregularly cryftallized in hexah». dral prilms, among the foffils i'ent to him Ly Mr Bey« f,° m Schneeberg. Gerh, And Baron Born mentions fome found in the Palatinate. i Raab. 126. Itsluftre, 2.1. Its tranfparency o, ornearly 1. fnm I e ’, C ° nC i 0lda1, fometi ™es imperfedly, fometimes flatly. Fragments 3 to R ro fr 9 " s r - *■<>■» m« , u I c ßnflon, indeed, mentions lome II P , IS bM 2 ’« 8 ’ anti ° ,h “ s - w hofe denfity cxtends to 2,76 or 2,8; bot, as he teil. us jafper fcarce ever ditcovers any lultre in its trac- ture, it is probable he does not always coniDrc- hend in h.s idea of jafper, tbe (tone here defcribed. With meuitic partides. 1 * “"»< tniijlf^gn bSlgÜöly “059: '° 6 ' r “ m ‘ " ol ,0 bs