Green Hoard (Green Hoarde), Bonya, Jervois Station, Central Desert Region, Northern Territory, Australiai
|Regional Level Types|
|Green Hoard (Green Hoarde)||- not defined -|
|Bonya||- not defined -|
|Jervois Station||- not defined -|
|Central Desert Region||Region|
The Green Hoard Mine is approximately 10 kilometres north-west of the Bonya Mine, at the north-western edge of the Bonya Hills. Bonzle labels it as 'Green Hoarde', while the references under this article spell it 'Green Hoard'.
The site contains a large historic trench 80 metres long, by 4 metres wide, to 2 metres deep, the walls stained with malachite and chryscolla. Also in the vicinity is several stockpiles of copper oxide and sulphides, a derelict small shed, and rusting drums. Surface secondary copper shows at the surface across a length of 200 metres.
The lease was owned by C.A. Wright and J.W. Sharp 01 June 1949 to 22 December 1949, then solely C.A. Wright until 03 February 1950. It was then taken over by K.G. Johannsen until 10 July 1970.
Rox Resources sank 3 drill holes below the trench in 2015, none of which intersected any significant copper mineralisation.
No geology information has yet been found relating to the site.
Regions containing this locality
|Australian Plate (Australia Plate)||Tectonic Plate|
|North Australian Element, Australia||Craton|
|Kalkarindji Igneous Province, Northern Territory, Australia||Geologic Province|
|Arunta Orogen, Australia||Orogen|
|Aileron Province, Arunta Orogen, Australia||Geologic Province|
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
Detailed Mineral List:
| ⓘ Chrysocolla|
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: Rox Resources (2012) Numerous Copper Prospects Identified at Bonya (ASX announcement 11 December 2012),(from pictures including in these reports of secondary copper stained trench walls, and ore stockpiles). Rox Resources (2015) Bonya Project Update (ASX announcement 29 May 2015).
| ⓘ Malachite|
Reference: Rox Resources (2012) Numerous Copper Prospects Identified at Bonya (ASX announcement 11 December 2012).(from pictures including in these reports of secondary copper stained trench walls, and ore stockpiles). Rox Resources (2015) Bonya Project Update (ASX announcement 29 May 2015).
List of minerals arranged by Strunz 10th Edition classification
|Group 5 - Nitrates and Carbonates|
|Group 9 - Silicates|
|ⓘ||Chrysocolla||9.ED.20||Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O|
List of minerals arranged by Dana 8th Edition classification
|Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN|
|Group 74 - PHYLLOSILICATES Modulated Layers|
|Modulated Layers with joined strips|
|ⓘ||Chrysocolla||126.96.36.199||Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O|
List of minerals for each chemical element
|H||ⓘ Chrysocolla||Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O|
|O||ⓘ Chrysocolla||Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O|
|Al||ⓘ Chrysocolla||Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O|
|Si||ⓘ Chrysocolla||Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O|
|Cu||ⓘ Chrysocolla||Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O|
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.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
1600 - 2500 Ma
|Paleoproterozoic crystalline metamorphic rocks|
Age: Proterozoic (1600 - 2500 Ma)
Comments: Arunta Block
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. 
1800 - 2050 Ma
Age: Orosirian (1800 - 2050 Ma)
Stratigraphic Name: Bonya Schist
Description: Muscovite, biotite and two-mica schists, some with andalusite, sillimanite or garnet; calc-silicate rock; metapelitic and meta-acidic volcanic rocks; amphibolite; skarn-like rock; magnetite quartzite; rare migmatite.
Comments: metasedimentary siliciclastic; synthesis of multiple published descriptions
Lithology: Metasedimentary siliciclastic
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).