Ballarat Technical Talk – June 2018

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Date(s) - 21/06/2018
7:30 pm

Mallow Hotel


Ballarat Technical Talk – June 2018

PhotonAssay – Disrupting the Gold Assay Industry

Presented by Dirk Treasure
CEO, Chrysos Corporation


Date & Time

Thursday 21 June, 2018
From 7.30pm



Mallow Hotel
Upstairs, 20 Skipton Street, Ballarat



The ability to assay levels of gold and other valuable metals in mineral ores and process materials is essential for exploration, resource definition, mine planning and process control. Gold has traditionally been analysed using chemical methods, notably fire assay, which are labour-intensive, time-consuming and involve the use of toxic or hazardous reagents. Chrysos Corporation is commercialising an alternative approach, PhotonAssay, that was originally developed by the CSIRO. Based on the principles of photon activation analysis, the method uses a high-power, high-energy X-ray source to excite nuclear changes in any gold atoms present in a sample, and then measures a characteristic signature emitted by these atoms. The process is non-destructive, rapid, highly specific and capable of providing a true-bulk analysis of samples weighing 500 g or more.

About the Presenter

Mr Dirk Treasure is the Chief Executive Officer of Chrysos Corporation. He is a metallurgist with both technical and corporate experience. Mr Treasure has a Bachelor of Mineral Science from Murdoch University in Perth and has been an active member of the mining industry since 2006. He is a member of AusIMM and AICD and was recently awarded the Komatsu-sponsored Emerging Leader of the Year Award by Australian Mining Monthly. Mr Treasure spent seven years in novel metallurgical process design employed by service providers and mining companies directly. He has designed, built and managed pilot plants across various deployment scales for hydrometallurgical, pyrometallurgical and electrolytic technologies. During his time as Operations Manager of ABR Process Development, he oversaw development of technology from conceptual design to commercial reality. Prior to joining Chrysos, Mr Treasure worked within the financial and commercial side of the mining industry. As a corporate finance executive at RFC Ambrian, he oversaw Chrysos’ seed capital raising and company formation.


It’s free entry. All welcome. Cash bar and meals available.


More information

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