Lavers Hill, Fish Creek, Hoddle Range, South Gippsland Shire, Victoria, Australia
|Latitude & Longitude (WGS84):||38° 42' 33'' South , 146° 7' 7'' East|
|Latitude & Longitude (decimal):||-38.70917,146.11861|
A gravel quarry on top of Lavers Hill, which is located 4km E of Fish Creek and 160km SE of Melbourne in South Gippsland, has produced a range of phosphate minerals. Turquoise had been known to occur in 4 separate localities in the area since 1925.
"In 1966 investigations were concentrated near Lavers Hill where beds of phosphatic breccia yielding assays of up to 19.7 wt. % P2O5 were exposed by trenching. However the area was not considered economic. The quarry on the top of Lavers Hill, (which is run by the local council) exposes a sequence of thinly bedded cherts and shales, strongly crushed and faulted in places, and dipping steeply ENE with northwest strike. A prominent band of dark grey to black phosphatic breccia, up to 2 m thick, contains subangular to rounded cherty fragments in a fine-grained matrix, together with fragments of pyrite and veinlets of wavellite. The breccia weathers to a pale grey, with some of the fragments becoming bright green and clay-like; these have been confirmed as glauconite. Phosphate minerals also occur in cavities and seams along joint planes in the adjoining cherts."
14 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
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|Llandovery - Late Ordovician|
433.4 - 458.4 Ma
Age: Paleozoic (433.4 - 458.4 Ma)
Stratigraphic Name: Bendoc Group
Comments: argillaceous detrital sediment; synthesis of multiple published descriptions
Lithology: Argillaceous detrital sediment
Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). 
Day, B. (1996) AJM 9(2)