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Rollinsons quarry, Malmsbury, Macedon Ranges Shire, Victoria, Australia

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Latitude & Longitude (WGS84): 37° 19' 60'' South , 144° 22' 0'' East
Latitude & Longitude (decimal): -37.3333333333, 144.366666667

Rollinsons quarry is one of a number of small basalt quarries east of Malmsbury, and 95 km north of Melbourne, Victoria. These quarries are situated in the basic lavas of what have been traditionally known as the Newer Volcanics, more recently referred to as the Westen District Province. The Province is divided into two sub-provinces: the smaller Central Highlands Sub-province, covering the dissected uplands of central Victoria; and the Western Plains Sub-province, extending more than 300 km west from the plains near Melbourne to South Australia. The basalts of the Malmsbury area are located in the northern part of the Central Highlands Sub-province, dominated by scoria and lava shield volcanoes. Recent studies show the lava plains basalts as dominantly tholeiitic or transitional olivine basalts.

Lava plains resulted from the merging of a number of flows from various vents which filled and overflowed from old watercourses. The lava plain extending east from Malmsbury consists of four, and possibly more,flows and is probably derived from eruption centres near Green Hill, approximately 5.5 km north of Malmsbury. The individual flows varied in physical properties, including hardness, susceptibility to weathering, and the number and size of vesicles. As a result they tended to be quarried separately and pillars of useless rock were left standing in the quarries.

Little, if any of the material remains by the roadside near Rollinsons quarry. Most of the quarries in the Malmsbury district are on private property and some of them still operate as small scale enterprises. Permission is required from the owners before entering or collecting from these sites, and failure to do so is not viewed favourably.

Mineral List

12 valid minerals.

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Sutton, P. & Mills, S.J. (2012) Minerals in cavities in basalt from Rollinsons quarry, near Malmsbury, Victoria, Australia. Australian journal of Mineralogy, 16(2), 95-102.

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