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Home » Commodity Experience » Sn-W-Ta-Nb Group
A B C D E F G H I K L M N O P R S T V W Y

B

Photo of Mr Guy Butcher
Mr Guy Butcher
MetallurgistG Butcher ConsultingMetallurgist

Guy Butcher is a metallurgist with 35 years of mining industry experience in the fields of extractive metallurgy and mineral processing including design, construction and operation. He has worked in a variety of technical, operational, management and corporate positions for companies such as Goldfields, Bayer A.G., Placer Dome and Goldcorp in Africa, the Asia Pacific region and in the Americas.
Guy was the start-up Mill Superintendent at Granny Smith (Au), Osborne (Cu-Au) and Chrome Chemicals Bleskop (Cr)and has had significant input into the process design of a number of other gold and base metal projects and operations including Porgera (Au), North Mara (Au), Eleonore (Au), Los Filos (Au) and more recently, the 130kf/d Penasquito (Au-Ag-Pb-Zn) project on Mexico. He has also authored and signed off on the ore processing sections of Goldcorp’s Canadian NI43-101 Technical Reports for the metallurgically complex Penasquito and Pueblo Viejo projects.
Consulting expertise offered to clients includes due diligence, process design review and auditing, client representation and the design, management and interpretation of metallurgical test programs.

Documents
View Guy’s CV
Specialities
    Metallurgy amd mineral processing
Areas of Practice:
  • Metallurgy and mineral processing
Commodity Experience:
  • Base Metals
  • Gold, Silver
  • Iron Ore, Manganese, Chrome
  • Sn-W-Ta-Nb Group
Regional Experience:
  • Australia – Queensland
  • Australia – Western Australia
  • Canada
  • Central America (inc. Mexica, Cuba)
  • East Africa
  • PNG
  • Southern Africa (S.Africa, Namibia, Zimbabwe, Botswana, etc.)

C

Photo of Mr Douglas Collier
Mr Douglas Collier
Chemical EngineerBAppSc(Met) UNSW, MEngSc(ChemEng) Newcastle 1977. MMICA, MAusIMM (CP), MIMM, MAusCeramicSoc, CEng

Doug has specialised in mineral processing and the chemical processing of minerals (hydrometallurgy). After graduating in metallurgy from the University of NSW in 1972, he worked seven years with King Island Scheelite and its sister company Warman International. This time was spent in the mineral processing and hydrometallurgy of scheelite in both plant operation and technical support. He was involved in the test work (including piloting), design, commissioning and operation of a plant producing synthetic scheelite and molybdenum sulphide byproduct. During this period, Doug obtained a M.Eng.Sc.(Chemical Engineering) from the University of Newcastle. The thesis topic was on phase separation aids in solvent extraction.
In 1979 Doug moved to the United Kingdom where he worked with Murex, eventually as head of a small process development department working on the hydrometallurgy of W, Mo, Va and Cr. His activities involved technical support to the plant and process development in all aspects of processing ranging from final stages in mineral processing to chemicals and refractory metal production.
In 1982 Doug moved to Frankfurt, Germany where he worked with Lurgi in the process development laboratory on pilot plant studies on synthetic rutile production and on testwork and technical development in the treatment of complex sulphides and gold. On returning to Australia in 1985, Doug worked for five years with Australia Wide Industries (including Topalite Resources and Centaur Mining) on the production of mullite refractory and fluoride chemicals from topaz containing silexite and on the technical development of a few gold operations. This work included the design and operation of a mineral processing and ceramics processing pilot facility and supervision of testwork and some design aspects of newly developing gold operations including the Plutonic project in W.A.
After a couple of years as a private consultant in gold and base metal processing, Doug joined the Australian Nuclear Science and Technology Organisation (ANSTO) at Lucas Heights, Sydney, in 1993 as a senior technical officer. This has involved testwork, up to pilot scale, in support of the mining industry, where mineral processing and extractive metallurgy entails treatment of ores and intermediates containing radioactivity. Bench to pilot scale studies have been carried out for example for the Mt Weld rare earthýs project, the Kintyre uranium project and in support of the currently operating Olympic Dam and Ranger Uranium mines.

Specialities
  • Extractive Metallurgy
Areas of Practice:
  • Flowsheet development and plant design
  • Process – Investigation and Testwork
Commodity Experience:
  • Industrial Minerals – Clay Minerals, Refractories, Abrasives
  • Sn-W-Ta-Nb Group
  • Uranium
Photo of Mr Damian Connelly Expert Witness
Mr Damian Connelly Expert Witness

Principal Metallurgist working as a Consultant. Extensive experience gained in all commodities and extractive processes including gold, copper, lead zinc, nickel, uranium and iron ore, titaniu, and vanadium. Specialist in comminution, gravity, flotation, hydrometallurgy, CIP/CIL and Merril Crowe gold & refractory gold metallurgy, heap leaching, bacterial leaching, solvent extraction and electrowinning.

Damian has worked on many major projects incuding flowsheet design, process improvements, cost reduction, conceptual project development, trouble shooting, engineering tenders and financial audits. Career employment with BHAS, Zinc Corp, Peko Wallsend, Bougainville Copper, Hamersley Iron, Roxby Mgt Services, KMA Pty Ltd, Harbour Lights Mining, Aztec Mining, METS Pty Ltd over some 35 years.

Experience has been gained in plant operations, feasibility studies, detailed design, construction and commissioning and all unit operations. A wealth of hands-on operating experience as a foreman, plant metallurgist, plant superintendent, chief metallurgist and project manager which has provided a solid base to mix with engineering and construction management. Damian has also run courses in Metallurgical Accounting and Mineral Processing for industry participants.

The last 21 years have been spent working as a Principal Consulting Metallurgist for Mineral Engineering Technical Service Pty Ltd for Mining, Banking and Engineering Companies both within Australasia and overseas.

Documents
View Damian’s CV
Specialities
  • Mineral Processing
  • Feasibility Studies – Design
  • Due Diligence
  • Project Management
Areas of Practice:
  • Management services
  • Metallurgy and mineral processing
  • Operational management
  • Technical audit and due diligence studies
  • Training and Education
Commodity Experience:
  • Base Metals
  • Gold, Silver
  • Industrial Minerals – Other
  • Iron Ore, Manganese, Chrome
  • Nickel and Cobalt
  • Rare Earths
  • Sn-W-Ta-Nb Group
  • Uranium
  • Vanadium
Regional Experience:
  • Australia – All States
  • Brazil
  • China
  • New Zealand
  • PNG
  • Russia, CIS

D

Photo of Mr Christopher Desoe
Mr Christopher Desoe
Mining EngineerAustralian Mine Design & DevelopmentMining Engineer

Chris is a director of Australian Mine Design & Development (AMDAD) and manages their Brisbane office. He is an engineer with 20 years of experience in hardrock mining and industrial minerals projects.
This experience includes involvement in evaluation, design, development, operations and research in over 70 mining projects throughout Australia, the South Pacific, South East Asia, China, West Africa, South America and Europe.

Chris has extensive computer capability, particularly in mine planning and design applications. He is skilled in the use of Surpac and Whittle mine planning software, as well as project management applications. Extensive involvement in fesasibility studies and other evaluation and design work is supported by more than 10 years’ operations experience in underground and open cut mining.

Specialities
  • Open Cut and Underground Metal Mine Planning & Design
  • Pit Optimisation
  • Feasibility and Evaluation
Areas of Practice:
  • Mining engineering
  • Technical audit and due diligence studies
Commodity Experience:
  • Base Metals
  • Gold, Silver
  • Sn-W-Ta-Nb Group
  • Uranium
Regional Experience:
  • Australia – Queensland

E

Photo of Mr Rodney Elvish Expert Witness
Mr Rodney Elvish Expert Witness
MetallurgistB E EnterprisesMetallurgist

Rod is a Consultant Metallurgist and Company Director who has extensive operating and consulting experience in metallurgy and mineral processing. He is Chair of the Mineral Processing Commission of the International Mineral Processing Council (IMPC).

He undertakes a wide variety of technical and commercial assignments, often combining his broad production, management, director, evaluation and development experience to achieve project specific solutions. He takes a holistic approach, matching the metallurgy to site, geological, mining and corporate factors. A similar approach is taken to evaluating new technologies.

Areas of specialisation include:

  • project management
  •  complex polymetallic metallurgy including differential flotation
  • gold, other precious and base metals recovery
  • iron ore beneficiation
  • new process evaluation
  • gravity separation
  • liquid/solid separation

Rod consults to operations staff, company boards, financiers and lawyers. He manages feasibility studies, undertakes valuations, independent reports and advises on mergers and acquisitions.

Assignments undertaken include:

  • metallurgical evaluation of exploration projects
  • managing feasibility studies
  • Assessor, Supreme Court of Queensland
  • on site plant trouble-shooting and optimisation
  • evaluation of new processes and technologies
  • independent technical reports and expert witness assignments
  • financiers’ completion tests and technical audits
  • testwork design, supervision and interpretation of results
  • flowsheet development, costing and equipment selection

Major project works include the development of major iron ore and manganese projects in West Africa, advanced tungsten processing, project management of the Browns polymetallic project (NT), the assessment and development of resin based gold and cyanide recovery technologies and new processes for recovering gold from refractory gold ores. As Director and later Chairman of Allstate Explorations NL he was extensively involved in bringing the Beaconsfield Gold Mine in Tasmania back into operation.

Rod is a past President of the Australasian Institute of Mining and Metallurgy and a Councillor of the IMPC.

Qualifications:
  • FRMIT(PrimaryMet) 1970, DipGeoSc(MinEc) Macquarie 1984, Prof Cert in Arb Adelaide 2003
  • MMICA, Hon FAusIMM (CP), FIMM, FAICD
Specialities:
  • Mineral Processing & Metallurgy
  • New Technology Evaluation and Auditing
  • Due Diligence Studies
Areas of Practice:
  • Independent expert valuations
  • Metallurgy and mineral processing
  • New technology, research and development
  • Project – Management
  • Strategic planning including company acquisition
  • Tailings and waste management
  • Technical audit and due diligence studies
Commodity Experience:
  • Bauxite and Alumina
  • Base Metals
  • Gold, Silver
  • Iron Ore, Manganese, Chrome
  • Nickel and Cobalt
  • Sn-W-Ta-Nb Group
  • Uranium
Regional Experience:
  • Australia – Northern Territory
  • Brazil
  • PNG

F

Photo of Dr Bradford Farrell
Dr Bradford Farrell
GeologistFarrell And AssociatesGeologist

Brad has more than 30 years broad based experience in mineral exploration and senior project management and evaluation. He commenced consulting in 1982 after working for a number of large companies particularly Anglo American in Australia, Africa and the pacific. Consulting work has led to involvement in a number of significant projects for a variety of commodities both in and outside Australia. These projects being mineral sands (Australia, Sierra Leone), sulphur (USA), diamonds (Australia, Sierra Leone), gold (Australia, New Zealand, USA) and manganese (Australia).

Director: Sun Resources NL

 

Qualifications
  • BSc Adelaide 1968, MSc Leicester 1972, PhD Leicester 1981
  • MMICA, FAusIMM (CP), MIMM (CEng), MAEG, MPESA
Specialities
  • Geology
  • Exploration
  • Geochemistry
Areas of Practice:
  • Exploration – Planning and Management
  • Exploration – Strategy
  • Exploration – Property Appraisal
  • Geochemistry
Commodity Experience:
  • Base Metals
  • Diamonds
  • Gold, Silver
  • Iron Ore, Manganese, Chrome
  • Nickel and Cobalt
  • Sn-W-Ta-Nb Group
  • Uranium
Regional Experience:
  • Australia – South Australia
  • Australia – Western Australia
  • Canada
  • Fiji
  • New Zealand
  • Pacific Islands
  • PNG
  • S E Asia (Malaysia, Thailand, Vietnam, Myanmar)
  • United States

G

Photo of Mr Stephen Gemell Expert Witness
Mr Stephen Gemell Expert Witness
Mining EngineerGemell Mining EngineersMining Engineer

Steve Gemell has more than 35 years’ experience in the mining industry, having worked throughout Australasia and in Africa, North and South America, Asia, Eastern and Western Europe. He has been Principal of Gemell Mining Engineers, an independent multi-discipline consultancy, since its formation in Kalgoorlie in 1984.
The consultancy specialises in mineral property assessment, valuations, technical audits, strategic studies, operational troubleshooting, hard rock mine planning and design, feasibility studies and expert witness.
His experience includes operational management in underground and open pit mining in positions from shift boss to resident manager, which has also involved the supervision of CIP/CIL, flotation and alluvial plants. He has subsequently held executive and non executive directorships, including the positions of CEO and Chairman, in listed mining companies. He has additionally held an appointment as Visiting Fellow at the University of New South Wales and is currently a member of the VALMIN Committee.
He is currently non-executive chairman of Golden Cross Resources Limited, and non-executive director of Argent Minerals Limited, Eastern Iron Limited, Indochine Mining Limited and UCL Resources Limited.
He is a fellow of the AusIMM, a Chartered Professional (Mining) and a Member of the American Institute of Mining, Metallurgical and Petroleum Engineers.

Qualifications
  • BE(Min)(Hons) Sydney 1976
  • Mine Mgr Cert (NSW, WA, South Africa)
    MMICA, FAusIMM (CP), MAIME
Specialities
  • Project Valuation & Technical Audits
  • Strategic Management
    Mine Planning & Design
Areas of Practice:
  • Independent expert valuations
  • Mine – Appraisal
  • Mine planning and design
  • Strategic planning including company acquisition
  • Technical audit and due diligence studies
Commodity Experience:
  • Base Metals
  • Diamonds
  • Gold, Silver
  • Industrial Minerals – Clay Minerals, Refractories, Abrasives
  • Iron Ore, Manganese, Chrome
  • Sn-W-Ta-Nb Group
Regional Experience:
  • Australia – Western Australia
  • Indonesia
  • Philippines
Photo of Mr Peter Goldner Expert
Mr Peter Goldner Expert
GeologistGoldner & AssociatesGeologist – Expert Witness

Peter graduated from Sydney University in 1967 with a Batchelor of Science Honours degree and has worked continuously as a practising geologist in numerous roles in Australia and overseas. He has extensive knowledge and experience in exploration, development and production aspects of the mining industry using a wide variety of geological and geophysical techniques; supervision and implementation of large exploration programs with annual budgets in excess of AU$18 million; provision of technical and commercial advice to client companies; target generation and country studies; exploration and evaluation of numerous deposit styles and commodities in a wide variety of geographical and geopolitical environments.
Peter is a former member of the VALMIN committee.
He has commercial experience in the negotiation of a large and diverse range of joint venture and acquisition/divestment agreements; preparation of technical reports for public documents such as prospectuses, information memoranda and documents associated with mergers, acquisitions and divestments; involvement in due diligence studies and reviews; negotiation with government departments; preparation of mining and exploration project valuations; involvement in the formation and subsequent public listing of an exploration company.
Peter was instrumental in the formation of an ASX-listed Mineral Exploration Company – Equatorial Resources Limited. He has been General Manager-Exploration of a mid-sized mining and exploration company with a geological staff of over 50 professionals, a member of the executive management committee overseeing the company’s production and exploration operations and is the Managing Director of his own mining industry consulting company.

Qualifications
  • BSc (Hons) Sydney 1966
  • MMICA, FAusIMM, FAIG
Specialities
  • Precious, Base & Specialty Metal Exploration and Development, Mineral Project and Evaluation, Independent Expert Reports, Expert Witness Services, Resource & Reserve Reviews
Areas of Practice:
  • Exploration – Planning and Management
  • Exploration – Strategy
  • Exploration – Property Appraisal
  • Resource / Reserve estimation (inc. geostatistics)
Commodity Experience:
  • Base Metals
  • Gold, Silver
  • Nickel and Cobalt
  • Sn-W-Ta-Nb Group
  • Uranium
Regional Experience:
  • All Australia
  • Indonesia
  • Philippines
  • PNG
  • United States

 

 

L

Photo of Mr Michael Lawrence Expert Witness
Mr Michael Lawrence Expert Witness
GeologistMINVAL Associates Pty LtdGeologist

Mike Lawrence

Mike is an economic geologist with some 48 years’ international Minerals Industry experience, who provides independent valuations of exploration and mine properties, project technical audits and dispute resolution solutions.  He specialises in due diligence and mineral property technical appraisals and valuations in an ADR or litigation context, involving a very wide range of commodities [eg, coal, iron ore, base metals, nickel, gold, bauxite, phosphate, aggregates, industrial minerals, dimension stone and gemstones.

He has been a mining and geological consultant to the metalliferous, coal and quarrying industries as CEO of international resource consultancies’ regional operations [eg, the French Government’s BRGM/SEREM and the UK Robertson Group], until 1991 when he founded Sydney-based Minval Associates.

He has been widely recognised by the Industry as an independent, highly ethical expert (MICA Medal, Honorary Fellow AusIMM & FAIG, 1999, President AusIMM and its Beryl Jacka Award recipient).

He authored 99 technical papers (to end 2013), particularly on aspects of valuation, due diligence, risk, ethics and professional liability.  He has made major contributions to AusIMM’s VALMIN Code since 1991 and development of AusIMM/MICA Alternate Dispute Resolution Scheme.  Appointed 2008 to NSW Ministerial Land Access Arbitration Panel (reappointed to June 2017).

Qualifications
  • BSc(Hons1) UNSW 1966,
  • GradDipPublicSectorMgt NSWIT 1985,
  • CertArb&Med 2000,
  • MAIMVA(CMV), MMICA, FAusIMM(CPGeo), FIMM(CEng), FAIG, MIAMA
Specialities
  • Technical Assessments, Audits and Valuations
  • Exploration Strategy, Planning & Management
    Alluvial & Hard Rock Geology
Areas of Practice:
  • Exploration – Planning and Management
  • Exploration – Property Appraisal
  • Government and public relations
  • Independent expert valuations
  • Resource / Reserve estimation (inc. geostatistics)
  • Technical audit and due diligence studies
Commodity Experience:
  • Bauxite and Alumina
  • Base Metals
  • Diamonds
  • Gemstones
  • Gold, Silver
  • Iron Ore, Manganese, Chrome
  • Nickel and Cobalt
  • Sn-W-Ta-Nb Group
Regional Experience:
  • Australia – Western Australia
  • Indonesia
  • New Zealand
  • Pacific Islands
  • Philippines
  • PNG
  • S E Asia (Malaysia, Thailand, Vietnam, Myanmar)

M

Photo of Dr Gary McArthur
Dr Gary McArthur

The first 23 years of Gary McArthur’s work experience (1971-1993) were spent as a career mine geologist, with lengthy periods at Mount Isa (Cu), Jabiluka (U-Au), Cleveland (Sn-Cu) and Hellyer (Zn-Pb-Ag-Cu). At Hellyer in Tasmania, he led the post-discovery geological team for 10 years through the drilling delineation stage, feasibility assessment, mine development and ultimately, into full production. This was followed by 5 years as part of Aberfoyle’s senior feasibility team providing geological and resource/reserve input for potential acquisition ventures and advanced exploration projects.
In the field of resource estimation, he has had lengthy experience since 1980 with the geostatistical assessment of mineral resources over a large variety of deposit styles and remains a fluent user of Datamine mining software. His association with metallurgists at Hellyer led to the development of groundbreaking advances in the often-neglected area of ore characterisation. Concurrent research on sulphide microtextures within the Hellyer VHMS deposit led to the award of Ph.D. from the University of Tasmania in 1997.
In 1998, Dr McArthur formed McArthur Ore Deposit Assessments Pty Ltd (MODA) to provide specialised consulting services in the fields of ore microscopy, resource/reserve evaluation, mine geology and data analysis. In the field of mineralogical services, either descriptive mineragraphy or quantitative mineralogy can be provided from sulphide rock samples or ground metallurgical samples. Clients can call upon Dr McArthur’s lengthy experience in all aspects of mine geology for assistance with project feasibility work, due diligence, technical audits, detailed 3-D interpretations, resource/reserve assessments or general mentoring.

Qualifications
  • BSc NSW 1971, PhD UTasmania 1997
  • MMICA, FAusIMM, MSEG
Specialities
  • Mineralogical Services
  • Resource/Reserve Estimation
    Mine Geology
Areas of Practice:
  • Mineralogical services
  • Mining geology / grade control
  • Resource / Reserve estimation (inc. geostatistics)
  • Technical audit
  • Due diligence studies
Commodity Experience:
  • Base Metals
  • Gold, Silver
  • Sn-W-Ta-Nb Group
  • Uranium

R

Photo of Mr Peter Robinson
Mr Peter Robinson

Since graduating from St Lucia University in Brisbane in 1969, Peter has spent over 36 years in exploration for principally base metals, uranium and gold. His experience began during the nickel boom and carries through the uranium and gold booms. He has been in project management since 1976 and became operations manager for Urangesell schaft Aust Pty Ltd in 1979.

Peter has had over 15 years experience in Uranium exploration. He began his own consulting/contracting company in 1984 and continued managing the exploration of projects. His experience is Australia wide and in most geological provinces and ages in Australia. He prefers projects with a challenge.

Qualifications
  • BSc Queensland 1969
  • MMICA, FAusIMM(CP)
Specialities
  • Exploration Management
  • Uranium Expert,
    Metalliferous Geology, Project Generation
    Project Evaluation & Assessment
Areas of Practice:
  • Exploration – Planning and Management
  • Exploration – Strategy
  • Exploration – Property Appraisal
  • Geochemistry
  • Project – Management
  • Recruitment
Commodity Experience:
  • Base Metals
  • Gold, Silver
  • Nickel and Cobalt
  • Sn-W-Ta-Nb Group
  • Uranium
Regional Experience:
  • Australia – Northern Territory
  • Australia – Queensland
  • Australia – South Australia
  • Australia – Victoria
  • Australia – Western Australia

 

 

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