Show morn moro than gold gold Is commonly com moni considered the most vahab a of metals because it la Is the moat most precious of tho the produced in sufficient quantity to be in common use there arc are hoNe however vr several rare metals that are much mode valuable than gold gallium for example la Is quoted in the at 13 3 an ounce an avoirdupois graceg of it occur in sonic zinc zine ores tons of velch must be worked over in ord order C r to abt a in a trifling quantity gallium Is a very remar lible substance at the ordinary bummer temperature of 86 degrees fahrenheit it t becomes liquid like mercury the latter becomes solid at 39 degrees degree 8 below zero most costly of all metals metal q sain 1 gallium Is germin lum which Is quoted it at 1 1125 an ounce rhodium Is worth 50 in an ounce ruthenium 90 an ounce osmium omil lm 26 an bunc ounce and palladium 2 14 an ounce the lait last Is 1 about equal in value to gold anit atals are of no great im moat most of thim are mere curiosities of the laboratory labon tory having beon been di discovered die covered originally by accident in to ci to the analysis of ores it it hae a been thit that th it some of t them h e might be coined but the supply of t them le Is too uncertain Is utilia utilized I 1 0 o some extent for making instruments of delicacy dell cac must hae aap the pro prop i ert of not corroding it 1 act from i mauril allo alto of osmium rhodium rh ind ruthenium this extraordinary mixture of r ire metals Is valte m hito |