Show borlum OB olt ARTIF ARTIFICIA I DIAMOND dil count john Dembin dembinski has addressed the following remarks oil on artificial diamonds diamond to the melbourne ll herald erald five years ago alu aiu alburni in i gium and arid borlum were known only in a form of dull grey or daik brown powder disclosing little or nothing of metallic appearance mr and mr st claire deville tile the latter at I 1 have the honor of cour counting ding amongst my sers personal onal friends were the first who succeeded in obtaining aluminium and arid in a metallic state cast into bars these same sarrie gentlemen also succeeded lately in g borlum in a crystalline estate states crystallised Crystalli sed borlum exhibits some remarkable I 1 properties it is perfectly tran transparent pa I 1 its specific gravity arid and it is a hardness nrc arc eua e ena qu it almost to the specific gravity and arid hardness or of crystallised crystallized crystalli sed earbon carbon diamond its coefficient for and anti its brilliancy supersede the bri iancy lancy arld and retraction refraction of dj diamond amond from 1 burn diani ond however it can be e easily discerned ter ried but only by a chemical analysis namely in the following ay way iy the sar Ear sample sampie to be tested is burned in oxygen gas pas if crystallised crystalli sed carbon diu ahmod dh din mod nond it will yield carbonic acid if it crys erys sed borlum bori borl urn it will yield toracie acid lu in both ins fance fauce however the sample to bs be tested must be destroyed crystallised Crystalli sed ged borlum I 1 it is staled in fai the report to abail academy of sciences ie is an the most anost perfect of bf genuine diamonda as |