2 RECORDS OK THE AUSTRALIAN MDSEUM. 



Mr. Charles Bogeurieder, Mining Engineer, who visited Hefteruau's 

 Mine at the time wlien the beryl crystals were being obtained (the mine 

 is now closed), and was, I believe, the tirst to correctly identify the 

 mineral, has favoured me with the following account of its mode of 

 occurrence : — " While inspecting Heft'ernan's mine in 1908 for the pui-pose 

 of seeing whether the tlien owners of the property would be able to 

 produce a .steady supply of wolfram, the writer was shoAvn a small heap 

 of green crystals of beryl, which the miners tliought to be either fluorspar 

 or some variety of quartz, the latter opinion being suggested by the fact 

 that some of the ci"ystals were iutergrown with quartz matrix and white 

 or smoky ciystals of quartz. In a trench about a liundred feet long and 

 four to eiglit feet deep the writer was able to secure a number of loose 

 crystals of beryl of beautiful colour and transparency. These crystals 

 were found embedded in a claye}' stratum not more than two or three 

 feet from the surface, and were accompanied by a number of druses of 

 smoky quartz, whicli showed decided zonal growth, the outer iayt^rs being 

 progressively darker than tlie kernel. A foot or two deeper, still in the 

 clayey stratum, were found nodules of wolfram ore, occurring in rich 

 patches and bunches and constituting a friable mass, with here and there 

 well defined ci'ystals of wolframite. Some of these lumps weighed twenty 

 to tliij'ty j)ounds carrying sixty to seventy per cent, of wolframite. On 

 returning to Sydney the writer presented some of the beryls to the 

 Australian Museum and others to Mr. Percy Marks, Jeweller, who later 

 obtained a considerable quantity of these fine crystals and exhibited them 

 at the Paris Exposition of 1910." 



Eleniriits. — Nine cr3'stals Avere measured on a two-circle goniometer; 

 of these four gave excellent signals and the angles obtained from them 

 were utilised to determine the axial latio. The data and results are 

 tabulated below. 



Weighting these results according to number of observations we 

 obtain for <■ the value •19947, as compared with Koksharov's ratio -WSSS. 



Foniis mid Ainjlrs. — Eleven forms, of wliich two, ^(30:il) and the 

 new fonn (9092), are probably prerosion faces were identified ; tlifhie ai-e 

 tabulated along with the measured angles and those calculated from the 

 Hxial ratio as given above. 



