132 North Ni Mine
Widgiemooltha, Coolgardie Shire, Western Australia, Australia
Key Information
Do not enter mining areas without proper authorization.
The 132 North Ni Mine is located in Widgiemooltha, Coolgardie Shire, Western Australia, 6 km north-north-west of Widgiemooltha and 80 km south of Kalgoorlie, in a region known for mining.
It produces nickel and rare minerals like widgiemoolthalite and gillardite, unique to this site, attracting mineral enthusiasts.
The mine sits on komatiite rock, an ultramafic type hosting nickel ore in channels, and operates as an open-pit.
Mining started in 1980 under Western Mining Ltd., with recent exploration by Widgie Nickel suggesting future potential, though it seems likely closed by 2011.
Widgiemooltha has a mining history, notably the Golden Eagle gold nugget discovery in 1931, with a small town culture centered around the roadhouse.
The climate is semi-arid, with hot summers and mild winters, low rainfall, and ecology adapted to arid conditions.
Location and Accessibility
The 132 North Ni Mine is nestled in the heart of Widgiemooltha, Coolgardie Shire, Western Australia, about 6 km north-north-west of the tiny town and 80 km south of the bustling mining hub of Kalgoorlie. This region, part of the Goldfields-Esperance area, is renowned for its rich mining heritage, making it a beacon for enthusiasts. Access is via the Coolgardie-Esperance Highway, 63 km south of Coolgardie, placing it in a landscape dotted with other historic mines like those at Kambalda.
Minerals and Unique Finds
This mine is a treasure trove for mineral collectors, primarily extracting nickel but famed for its rare secondary minerals. Widgiemoolthalite and gillardite are exclusive to this site, while otwayite and gaspeite add to its allure. These uncommon finds, especially the unique occurrences, make it a must-visit for those chasing rare specimens.
Geological Insights
Geologically, the mine lies on the Widgiemooltha Dome, a Kambalda type komatiite channelised nickel orebody. Komatiite, an ultramafic rock, hosts nickel ore in specific channels, and the open-pit operation reveals these formations, offering a glimpse into the earth's nickel-rich past.
Mining History and Current Status
Discovered in 1968 by International Nickel Australia Ltd. and later acquired by Western Mining Ltd., the mine opened in 1980. It operated until at least 2011, but recent activities by Widgie Nickel, including 2023 drilling, suggest exploration for future mining, though it seems likely closed by 2011, with potential for revival.
Cultural and Historical Context
Widgiemooltha, with its roots in gold mining from the 1890s, is a small town today, marked by the Widgiemooltha Roadhouse. The 1931 discovery of the Golden Eagle nugget, the largest in Western Australia at 1,136 ounces, highlights its mining legacy. Land yachting on nearby Lake Lefroy adds a unique local attraction, blending history with adventure.
Climate and Ecological Notes
The area enjoys a semi-arid climate, with hot summers and mild winters, and low rainfall typical of the outback. The ecology is adapted to these conditions, with flora and fauna resilient to arid environments, influencing the mineral weathering processes observed.