Alexandra Mine and Battery
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| Alexandra Mine and Battery | |
|---|---|
.jpg) Boiler and equipment, 2009 | |
| Location | Palmerville Station, Maytown, Shire of Cook, Queensland, Australia |
| Coordinates | 16°05′55″S 144°19′06″E / 16.0987°S 144.3182°E |
| Design period | 1870s–1890s (late 19th century) |
| Built | c. 1878–1898 |
| Official name | Alexandra Mine and Battery, Alexandra PC |
| Type | state heritage (built, archaeological) |
| Designated | 21 October 1992 |
| Reference no. | 600429 |
| Significant period | c. 1878–1898 (fabric, historical) |
| Significant components | terracing, chimney/chimney stack, flue, shaft, mullock heap, battery/crusher/stamper/jaw breaker, adit, road/roadway, machinery/plant/equipment – mining/mineral processing |
  Location of Alexandra Mine and Battery in Queensland  Alexandra Mine and Battery (Australia) | |
Alexandra Mine and Battery is a heritage-listed mine at Palmerville Station, Maytown, Shire of Cook, Queensland, Australia. It was built from c. 1878 to 1898. It is also known as Alexandra PC.It was added to the Queensland Heritage Register on 21 October 1992.[1]
Mining began in the Palmer River area in 1876 and production commenced from the "Alexander PC" (one of the earliest prospecting claims) in 1878. Crushings of selected ore enabled the mine to average a spectacular eight ounces of gold per ton during the 1870s. By 1880, the Alexandra had crushed a mere 183 long tons (186 t) of stone for a yield of 1,262 ounces (35,800 g) of gold, grossing well over £5,000. However cartage and crushing costs were high as the ore had to be taken 16 kilometres (9.9 mi) to the battery. Therefore, a gold yield of two-three ounces per ton was required before a profit could be considered.[1]
Small scale production went on intermittently until 1895 when Edwin Field installed a steam pump and winding gear, taken from the Louisa and Queen mines in 1895 and erected a battery at the Alexandra. He undertook development work, pumping out the mine and retimbering and began crushing in 1897. But, although operations continued on a small scale for nearly two years, the reef yielded just over one ounce to the ton.[1]
At the end of 1898 the mine closed. In twenty years 499 long tons (507 t) of ore had been raised for a total of 1,810 ounces (51,000 g) of gold, an average of 3.6 ounces (100 g) to the ton. The mine was never worked again and the battery frame was removed in 1940.[1]
Description
The place is situated on a ridge at the head of a gully, about 500 metres (1,600 ft) south of the Palmer River, at co-ordinates 16.06.01S - 144.19.00E. The mine workings and battery are closely confined on a terraced bench. The site of the managers house is evident alongside the road on top of the ridge and comprises a broken cement surface. A grinding pan has been removed to the house site.[1]
The mine workings are aligned along the strike of the reef and include, on the terrace level, a caved main shaft and an earlier shaft. An adit has been driven in from the gully to meet the main shaft. A single cylinder portable steam engine is located alongside the main shaft. (Since a survey of the site in 1982 a pump arm has been placed alongside the main shaft). Mullock has been dumped into the gully to form a dam. The watercourse now bypasses the dump. Another group of workings comprising a shaft and mullock dumps is located about 100 metres (330 ft) south-east on a spur of the ridge.[1]
The battery plant includes a Cornish boiler in a brick mount with a flue leading to an intact nine metre high metal chimney. Immediately alongside the boiler is the body of a single cylinder horizontal engine. Alongside the engine are two mortar boxes which appear to have remained in situ although the stamper frame has been removed. Seven of the ten stamper rods are still standing in the mortar boxes. The camshaft is nearby.[1]
The surviving plant includes:[1]
- Cornish boiler - J.W.Sutton & Co Brisbane
- One-cylinder portable steam engine - no brand (Clayton & Shuttleworth ?)
- One-cylinder horizontal steam engine - no brand.
- Boiler casing (converted to a water tank) - no brand.
- Pump arm (not in situ)
- 2 Five-stamp mortar boxes - no brands
- Grinding pan (at manager's house site, not part of battery)
- Langlands Foundry
