Show k it takes the ilace of diamond dust the name of ila lias been gien given to ft a peculiar manufactured substance intended on account of the peculiar properties which characterize it when thus used to take the tile place of diamond dust and bortin the abrasion of hard substances singular to say my the tile product Is in character wholly unlike the tile nub substances stances fro from n which it is derived that is in compoi itsou tiou it is almost pure pu carbon in construction construe t on crystalline and in baadness baid ness it is ten tell on scale beale in lit mew of these qualities it is to all intents and purposes manufactured diamond powder though in color it is slight slightly ly darker under the microscope micro many of the crystals appear of a dark green some are yellow while others still are blue and some completely colorless the cost of title material la is aid mid to bu bo ery very moderate new york sun |