Our team

Meet our small team that achieve lots.

Undoubtedly a great mob behind the successful Perth Gem and Mineral Show 


Peter Willems


Peter grew up in Hobart where he showed interest in minerals from a young age, plaguing mum’s washing machine. He studied a BSc, majoring in Geology at the University of Tasmania. In 2014, he was awarded the Christopher Holmes Scholarship Award for outstanding achievement in Mineralogy. Through university, Peter ran a hobby business as a mineral dealer, sourcing minerals from across the world as well as regular field collecting.

As a graduate, Peter worked at Regis Resources in open cut mining, across four contrasting orogenic gold deposits, and in exploration across nine deposits and prospects.  Peter has worked in underground mining at Sandfire Resources since September 2017, including secondment as a Geotechnical Engineer. He used his combined knowledge from underground Geology and Geotechnical activities to build a structural model for DeGrussa, which has become an integral entity for the Technical Services team.

Peter has a passion for mineralogy and is both president of MinSocWA and of PGMS Sub-Committee. Evidently, he has become the head of the Perth Gem Mineral Show & team. He also represents one third of The Outback Gem Co., sourcing and selling mineral specimens from around Australia.


Kylie Matonia

Secretary (and more)

Kylie Matonia is a born and bred South Australian, who swapped out the wineries and rolling hills of Adelaide for the red dirt of the Western Australian Outback. She has worked in exploration in SA and Indonesia, as well as mining operations in WA. Partial to a nice specimen or two, and passionate about education, sharing geological wonder and bringing people together. Extraordinarily committed to make the Perth Gem and Mineral Show the event that Western Australia deserves, Kylie has invested countless hours in getting things done for the team.

Kylie used her public relations skills to bring numerous geoscience actors on the table, gathering interest of the industry, and thus securing the future of the show. Her dedication in the mineral world is such that Kylie has now joined the Mineralogical Society of Western Australia, strengthening the links between the two entities.


Nicolas Hébert

Co-Founder / Webmaster

Nicolas is a Sustainability Data Analyst – geologist at Talison Lithium in Greenbushes. After graduating from his M.Sc of Geological engineering in France, he prospected several gem-producing areas across S-E Asia.

Nicolas fossicked many French historical mineral occurrences from the Vosges Mountains to the Alps and Massif Central looking for smoky quartz, fluorite, along with minor Cu-Bi-Mo-As-Sb mineralisation. His more recent trips focused on marble-hosted paragenesis, with a strong emphasis on Luc Yen (Vietnam) and Mogok (Myanmar) incredible mineral diversity.

Soon after emigrating to WA, Nicolas got involved with MinSocWA by offering lectures on the ruby/spinel assemblage found in these regions, and another talk for the Australasian seminar on the color of blue spinels. He since has done a few others about faden quartzes for PGMS 2021 and discussed the orange fluorescent minerals from Mogok at Tucson Symposium 2022. The idea of bringing a show of similar stature as the one in Sainte-Marie-Aux-Mines to Perth seemed obvious. Quite naturally, Nick joined the group of enthusiastic young members as the 2021 PGMS treasurer and social content manager. His role in the team is now is solely focused on the website development.


Mitchell Elphick

Social Media Manager

Mitch is one of the general committee team members organising the inaugural Perth Gem and Mineral Show.

A WA local, he finished his B.Sc in Geology at Curtin University in 2015 and has been exploring, mining and rummaging around the bush causing mischief ever since.

He is currently working for Fortescue Metals Group as a Geologist in the Iron Ore division, and has previously worked for several years exploring the wilds of Western Australia for Gold, Base Metal and Lithium deposits.

With a keen interest in gemstones from a young age he naturally gravitated towards lapidary, mineral collecting and hoarding as many rocks as humanly possible.

In 2019 he co-founded @theoutbackgemco with the goal of artisanal mining and dealing in Australian minerals, this ongoing enterprise with co-founders @case.y__ and @rock__licker has taken them to some of the most iconic mineral occurrences in WA.

Mitch is a keen geologist, an advocate for mineral heritage and very excited to be a part of The Perth Gem and Mineral Show.


Norton Kalleske


Norton is a Geologist currently working as a Senior Mine Geologist for Anglogold Ashanti here in Western Australia. Moving to WA after completing B.Sc Hons at The University of Adelaide in 2010 Norton has worked in the gold industry for 10+ years at several sites across WA. He has also been time collecting, prospecting and mining different locations across Australia. Targets includes specifically Opal, Zircon, Amethyst, Smokey Quartz, Topaz, Sapphire, Gold, Fossils, Garnets, Emeralds, Malachite, Tourmaline, Agates.

Having been a Lapidarist for 16+ years cutting Opal and recently taking up faceting other gemstones through @Norty_gems.


Casey Elphick

Co-Founder 2021-2022

Casey is a WA local, growing up on the Darling Scarp where a childhood of rock-hopping quickly evolved into a passion for rock hunting, climbing, trading and studying.

Casey graduated from Curtin University in 2018, with a B.Sc in both Geology and Environmental Biology. In 2019 she co-founded @theoutbackgemco with Pete and Mitch whilst working for Fortescue Metals Group as a Geologist. She has since entered the world of Hydrogeology, where she can be found chasing groundwater across the Pilbara. 

Casey has always been passionate about science communication, and is excited to help establish the PGMS as a space for geoscience enthusiasts to collaborate, educate and inspire.


John Mill

Treasurer 2022-2023

John is a good guy, with lots of experience, joining the 2022-2023 team as the treasurer.

After managing MinSocWA’s as treasurer for years, John was naturally to be involved in progressing Perth towards having a top class gem and mineral show. John helps spread the passion and awareness of Australia’s and WA’s rich gem & mineral heritage as well. Besides being an active retiree, John strives to turn this event into an inspiration for hobbyists and professionals alike. E.g. budding and current Jewellers, Geologists, Gemmologists, Lapidarists, Collectors, Fossickers and Prospectors. In regular occasions, John enjoys travelling extensively across the country for night photography.

Roseanna Dale

Roseanna Dale

Community Relations Officer 2022

Roseanna is a Project Geologist at Sandfire Resources. Growing up and studying geology amongst the mountains in New Zealand she has always been extremely passionate about geology, especially volcanoes and geometallurgy.

Ever since working in the mining industry, she has been getting involved with education outreach programmes in remote communities. Otherwise volunteering with Get Into Resources in addition to assisting Curtin University with the Focus on Mining Camp.

Roseanna is the latest addition to the Perth Gem Mineral Show team.


General Committee Member

J.Lynn is one of the general committee team members organising the Third Perth Gem and Mineral Show. A 90s American Import, J.Lynn originally came to Australia as a exchange student at Curtin University and instantly fell in love with the place. Continuing her studies, she obtained a Graduate Diploma in Applied Heritage Studies and curated an exhibit at the Perth Mint. Years later, J.Lynn’s affinity for Minerals and Mineral Collecting began as a retailer of crystals and minerals in the Dandenong Ranges of Victoria where it all quickly snowballed into an obsession. 

After 3 years retailing, J.Lynn levelled up and obtained a position with the international wholesaler and mineral dealer Crystal Universe/Ausrox. Here, she could both support small business, (her biggest passion,) and continue to learn more about the Collectable Mineral world. In that time, she has developed a love for learning about why and how collectors seek out the pieces that can help complete their collection. Her 15 years with Crystal Universe/Ausrox has seen her travel the world as buyer, supplier and vendor at many of the most acclaimed events of the Collectable Mineral community, including the Tucson Gem Show. J.Lynn believes that absolutely everyone with a passion for minerals deserves to be able to connect and learn from industry and mentors and follow wherever it takes them, be to study geology or simply be the master curator of their own private collection. The Mineralogical Society of Western Australia is dedicated to creating opportunities for vital connections between mentors, professional collectors, and the mining industry, and the public to help foster the next generation of rock hounds, geologists and passionate mineral lovers. Because of this, J.Lynn Sunderland is honoured and humbled to be a general committee member for the most important event towards this mission: The 2023 Perth Gem and Mineral Show.

Vinodaarshini Vigneswaran


Vinodaarshini was born and bred in Malaysia. In 2014, her family migrated to Australia and she immediately fell in love with the beautiful nature and people. Vino graduated high school in 2018 and found her passion for geology through the CORE program and ATAR Earth and Environmental Science studies in high school. The passion for geology and her love for maths motivated her to pursue a double degree in BSc Geology and BCom Finance at Curtin University. After four years of tertiary studies, Vino is now a graduate Geologist at Goldfields and is thoroughly enjoying her learning experiences. She did her first vacation work with Sandfire and began her role as a volunteer for PGMS 2021. Vino was then a volunteer lead in PGMS 2022 and continues in this role for this year’s event. Since high school, Vino has been actively engaging in many volunteering opportunities as she enjoys providing back to the community. She has also taken on multiple leadership roles in both high school and university. Vino has always been passionate about minerals and volunteering and looks forward to contribute to the success of this year’s PGMS.