oPINELLE. ch^ ° n ° nS Int ° c " m f° n 5 cochineal, and ^ err >-red, and from this into plumb, violet, and in- i^re * an ^ a Variety S reen > which is very tjj ro 5 on f ^ e °ther fide it paffes from carmine-red into^ . bIood retl into oran g e yellow, and from this K tTI * C ^ e co ^ our between clove brown and red- r °wn. It occurs alfo reddilh white. oni? C ° lours are m oftly deep (the reddifh white is the S °met- le C ° Iour ' ) ’ antl the y Iiave aIwa ys a fhade of black. Ses^ 11168 K is envelo P ed in an opaline cruft, fome- v ^he U ex ^its an opalefcent iridefcence, and others cut exhibit ftars of three and fix rays +. th at < ? Ccurs in grains which, from their afpectj Ihew le y have been rolled, alfo cryftallizcd. 1 ■ Perfeft oCtacdron. Lengthened or cuneiform oftaedron. 3 When fix faces of the perfed: oiftaedron are en larged at the expence of the other two, one in each pyramid, which at length entirely dif- appear, a very acute rhomboid is formed. . ‘ hen four alternate planes of the oaaedron grow large at the expence of the others, which at length difappear, a tetraedron is ormed : the tetraedron is fometiines trun cated on the angles, and often fo deeply t tat only thin fegments remain. •Lib 5. Sometimes
