The Pannikin Mine is situated on the south side of the Hart's Range about 7 miles southeast of Mount Riddock and about 9 or 10 miles a little south of east from Schaber's homestead. The Elbow deposit is about 1 1/2 miles south-southwest from the Pannikin. The two deposits, and another smaller one in the same locality, were visited on 22nd October, 1944. The accompanying plan of the Pannikin was made with compass and tape. The report comprises notes on the two mica deposits. Accompanying sketch plans of the Pannikin and Elbow deposits are included.

The following summary of deposits of lithium-bearing minerals in Australia has been compiled from office records, including the previous statement on amblygonite deposits by P.B. Nye, and reports on Western Australian deposits by H.A. Ellis of the Geological Survey of the State. Much of the information on the Northern Territory deposits has been obtained from an article by A.E. Williams in 'Chemical Engineering and Mining Review' of July, 1940. A discussion of Australian sources by State and Territory follows in the report. A summary of Australian amblygonite production figures for 1905 to 1943 is included.

Western Australia is the only State from which vermiculite is produced. Occurrences are known in some of the other states and in the Northern Territory, but the information is not sufficiently detailed to enable their importance to be assessed. Vermiculite occurrence by State and Territory, and processing capabilities, are detailed in this report.

A collection of cores was sent by the Zinc Corporation for the purpose of magnetic orientation of bedding planes. The collection consists of seven pieces mostly of short length. The results of the magnetic tests, and recommendations for future testing, are discussed in this report.

Report on mine maintenance, costs, equipment, employment, reserves, and workings.

Report on mine maintenance, costs, equipment, employment, reserves, and workings.

Findings from a micro-examination of samples taken from the depths of 2,110 feet down to 3,533 feet 11 inches. The series is in continuation of that reported upon 11/10/44.

A preliminary geological examination of an area at the northern extremity of Gungahlin district was carried out for the purpose of determining with fair approximation the area occupied by slate apparently suitable for brick-making. The geology of the area and the suitability of the site for a brick pit are discussed in this report. A geological sketch map of the district is included.

On 21st November, 1944, a visit was made to the above block at the request of the lessee (Mr. G.D.C. Tanner) who had asked for advice regarding water supply. The report following this visit recommended the testing of an alluvium-filled basin which occupies part of the southeastern quarter of the block. Subsequently Mr. Tanner sank a well at a site about 1,000 feet south of the point indicated as most favourable. For all practical purposes it may be considered that the well has proved that the alluvium is not capable of yielding a useful supply of water at the end of a dry period, and it became necessary to consider the possibility of obtaining water from the bedrock. The present report embodies results of a further examination with this end in view. The location, topography, geology, and possibility of underground water at Block 10 are discussed in this report. A geological sketch map of Block 10 is included.

Results from the micro-examination of samples from 2254 to 4554 feet down, No.2 Bore, Boronga. The series examined is in continuation of that reported upon 30th May, 1942.