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Old Mill Road Quarry (Dog Pound Quarry), Oamaru, Waitaki District, Otago Region, New Zealandi
Regional Level Types
Old Mill Road Quarry (Dog Pound Quarry)Quarry
Oamaru- not defined -
Waitaki DistrictDistrict
Otago RegionRegion
New ZealandCountry

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Latitude & Longitude (WGS84):
45° 5' 35'' South , 170° 57' 12'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
Oamaru13,000 (2017)1.5km
Kakanui443 (2013)10.9km

A flour mill once stood in this area and the water-wheel from the mill has been placed by the road in a picnic area.

The Phoenix flour mill was opened in 1878, replacing a prior flax mill which had been destroyed by a flood in 1870. The mill building was removed in 1905, leaving the waterwheel. This was removed in 2011, and placed in storage awaiting restoration. At the time of writing (February 2018), the restored wheel is in the process of being returned, with landscaping, car park, decking, walkways, and interpretive signage going in.

Opposite on the other side of the road is the quarry that was used by the Borough Council for the dog pound, hence the name. The quarry was originally used to extract rock for the Oamaru breakwater. It is assumed the work on the waterwheel across the road, will not effect the old quarry, but is likely to see increased visitor numbers to the area.

The rock from the quarry that was used for filling on the harbour breakwater consisted of red-weathering calcareous massive to coarsely current-bedded tuff, coarse crystal lithic tuff, scoria, basaltic breccia and agglomerate.

This quarry was not known for its crystal forms until recent years and up until then was well-known for its green and brown opalite.

Aragonite is found as sprays of clear to white needles in siderite lined vugs, also clear tabular crystals. Calcite as rhombs on limonite coated siderite, also the crystals attached to bladed aragonite. Siderite as the most common species at the site, pale yellow, greenish, blue-black, saddle and disc shaped crystals, some iridescent, high quality specimens found in the early days. Sphalaerosiderite as hollow spheres, pale earthy yellow to iridescent blue-black to browns.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

7 valid minerals.

Detailed Mineral List:

Formula: CaCO3
Reference: Old Mill or Dog Pound Quarry, Oamaru, Essence of Micro-Scope (NZ), Auton and Thornton
Formula: CaCO3
Reference: Old Mill or Dog Pound Quarry, Oamaru, Essence of Micro-Scope (NZ), Auton and Thornton
Formula: (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Reference: Old Mill or Dog Pound Quarry, Oamaru, Essence of Micro-Scope (NZ), Auton and Thornton
Formula: α-Fe3+O(OH)
Reference: Collection of RJ Martin
Formula: Fe2O3
Reference: Collection of RJ Martin
Formula: (Fe,O,OH,H2O)
Reference: Collection of RJ Martin
'Manganese Oxides'
Reference: Collection of Rod Martin
Formula: SiO2 · nH2O
Reference: Old Mill or Dog Pound Quarry, Oamaru, Essence of Micro-Scope (NZ), Auton and Thornton
Opal var: Opal-AN
Formula: SiO2 · nH2O
Reference: Old Mill or Dog Pound Quarry, Oamaru, Essence of Micro-Scope (NZ), Auton and Thornton
Formula: FeS2
Reference: Personal collection, Rod Martin
Formula: FeCO3
Reference: Old Mill or Dog Pound Quarry, Oamaru, Essence of Micro-Scope (NZ), Auton and Thornton
Reference: Collection of RJ Martin

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Group 4 - Oxides and Hydroxides
Opal4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Group 5 - Nitrates and Carbonates
Unclassified Minerals, Rocks, etc.
'Manganese Oxides'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Mixtures, etc.
'Manganese Oxides'-
var: Opal-AN
-SiO2 · nH2O

List of minerals for each chemical element

H Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
H Opal (var: Opal-AN)SiO2 · nH2O
H OpalSiO2 · nH2O
H Goethiteα-Fe3+O(OH)
H Limonite(Fe,O,OH,H2O)
C AragoniteCaCO3
C SideriteFeCO3
C CalciteCaCO3
O AragoniteCaCO3
O SideriteFeCO3
O CalciteCaCO3
O Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
O Opal (var: Opal-AN)SiO2 · nH2O
O OpalSiO2 · nH2O
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O Limonite(Fe,O,OH,H2O)
Na Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Mg Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Al Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Si Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Si Opal (var: Opal-AN)SiO2 · nH2O
Si OpalSiO2 · nH2O
S PyriteFeS2
K Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Ca AragoniteCaCO3
Ca CalciteCaCO3
Fe SideriteFeCO3
Fe Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Fe PyriteFeS2
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe Limonite(Fe,O,OH,H2O)


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Auton, G.A. (2009) Old Mill or Dog Pound Quarry Oamaru, Otago Rock and Minerals Club website.
Otago Daily Times newspaper (2015) Water Wheel of Mill Nears Restoration, 19 September 2015.
Otago Daily Times newspaper (2016) Plan to Restore Old Mill's Waterwheel, 27 February 2016.
Oamaru Mail newspaper (2017) Mill Wheel Work Set, 30 March 2017.
Oamaru Mail newspaper (2018) Feb Finish for Water Wheel Project, 16 January 2018.

External Links

Other Regions, Features and Areas containg this locality

New Zealand
Pacific PlateTectonic Plate

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