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reef mining quartz

Agnico Eagle Mines Limited

The Hammond Reef deposit is a high tonnage, low grade gold deposit that is primarily hosted in variably sheared and altered granitoid rocks. Gold mineralization is typically associated with fine grained pyrite mineralization that is often associated with fractures, veinlets and veins filled with various combinations of chlorite, calcite and quartz.

The gold fields of Victoria in 1862

In quartz-mining, too, the time is equally one of depression—of expectation rather than activity. It was stated in Parliament, as an argument in favour of the suspension of the standing orders of the Assembly to permit the hasty passage of the Drainage of Reefs Bill, that for want of such a measure, not fewer than eight hundred claims were ...

Quartz reef mining

Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef or placer deposit. Gold Hill, in Grass Valley, California, was the site of one of the first discoveries of quartz gold in California.

Rolf Luetcke

 · Update on the Reef Mine minerals. After writing my article on the Reef Mine in the Huachuca Mountains I received a contact from Robert Walstrom about the study he and Eckhard Stuart did at the Reef Mine. They visited the various benches at the Reef Mine on nearly a dozen occasions and found mineralized areas in some the exposed quartz benches.

Talk:Quartz reef mining

Quartz reef is an archaic mining term for a quartz vein which contained gold. The reef has nothing to do with coral reef, but rather a resistant layer of hard quartz. I think the terminology originated in the Australian gold fields, but is also used in mining reports from South Africa (the Merensky Reef ) …

What is QUARTZ REEF MINING? What does QUARTZ REEF MINING ...

 · What is QUARTZ REEF MINING? What does QUARTZ REEF MINING mean? QUARTZ REEF MINING meaning - QUARTZ REEF MINING defini...

Photo Gallery: Reef Mine (Tungsten Reef Mine; Exposed Reef ...

Reef Mine, Carr Canyon, Cochise County, Arizona, USA Field of View: 15 mm Tiny (< 1MM) groups of dark green crystals of khinite on ouartz. Khinite ocurrs very rarely in the deposits. Most of the quartz from the quartz blankets are typically yellowish to white as seen in this photograph.

Navarre Minerals hits new quartz reef structure of visible ...

 · Navarre Minerals (ASX: NML) has intersected a new quartz reef structure containing areas of visible gold and strong sulphide mineralisation from the first holes of a phase one exploration program at its wholly-owned St Arnaud project in Victoria. Results for the first eight diamond drill holes over 3,239 metres of the New Bendigo Line area included an intercept of 0.4m at 38.3 grams per …

The Ballerstedts and the Bendigo Quartz Reefs

Reef Gold Mining Company and the Victorian Reef Quartz Mining Company — was worth only £19,000. His only other substantial non goldmining property was £1,000 invested in the Bank of Victoria, £1,500 in the Commercial Bank and £1,000 owed to him by a fellow quartz reefer — Mr. Wittschiebe.22

HISTORIC MINING SITES IN THE MALDON MINING DIVISION

75C 245 Smiths Reef N 425.990 Muckleford Quartz mining, and reef workings 76 248 Thornhill Co. N 415.900 Green Gully Quartz mining 77 253 Welshmans Reef N 379.937 Welshmans Reef Quartz mining 78 253 Welshmans Reef N 380.935 Welshmans Reef Shallow alluvial & tailings

Gold fever

 · An 1857 Royal Commission into the progress of the Victorian goldfields supported Murchison''s view that mining of the Bendigo quartz reefs would be shallow and shortlived. Miners on (and under) the ground, however, were disdainful of the views dispensed by scientific mining men on the other side of the world.

Wikizero

Quartz reef mining is a type of gold mining in "reefs" (veins) of quartz. Quartz is one of the most common minerals in the earth''s crust, and most quartz veins do not carry gold, but those that have gold are avidly hunted by prospectors. In the shallow, oxidized zones of quartz reef deposits, the gold occurs in its metallic state, and is easily ...

Golden Reef Mining

Golden Reef Mining (GRM) is a Zimbabwe based private limited minerals exploration and mining company with a diversified mineral portfolio. The company was established and incorporated in 2007 and is in the business of mining and exploration of selected mineral deposits.

EUREKA REEF GOLD MINING PRECINCT

The Eureka Reef Gold Mines consists of a range of mining sites documenting quartz and alluvial gold mining operations carried on from the mid 1850s to 1950s. The focal point of the precinct is the Eureka Reef glory hole and its associated cluster of stamping batteries and …

Quartz reef mining

Quartz Reef Mining. Primary gold typically happens in quartz veins. The removal of gold ore from these tough quartz veins was traditionally referred to as quartz reef mining. A Prussian engineer, Jacob Brache was the foremost to feel that quartz reefs may have even more gold than alluvial fields.

What''s a Quartz Reef for beginners.

 · Doc shows an example of a deteriorating quartz reef, with iron staining and decomposition. He explains the importance of these structures in the distributio...

Gold — kidcyber

Reef mining. A third kind of gold mining was reef mining. Layers, called reefs, of quartz rock containing gold are found deep in the earth. Quartz is a hard, white rock. Deep shafts and drives had to be dug, and all the rock dug out had to be hoisted to the surface. Big engines hoisted lifts for the miners and buckets of gold from the shafts.

Finding Gold With Doc: "What''s a Quartz Reef?"

If you are new to prospecting you may hear old timers talk about quartz reefs. "It looks like at one time, there might have been a quartz reef right here, l...

Wikizero

Quartz reef mining is a type of gold mining in "reefs" (veins) of quartz. Quartz is one of the most common minerals in the earth''s crust, and most quartz veins do not carry gold, but those that have gold are avidly hunted by prospectors. In the shallow, oxidized zones of quartz reef …

Indicators and Quartz reefs

 · From my understanding in quartz reef mining, the miners came across these Indicator lines which were small veins of pyrites or thin layers of slate. Around Maryborough, the formation was known as Book Leaf slate (because it resembled the pages of a book). Further to the west (Ararat) the Indicator line resembled a pencil line drawn through the ...

Gold Mining Reefs and Leads

Gold Mining Reefs and Leads. A gold reef is where the gold is found still deposited in its original rock host. In Ballarat this rock was usually quartz, in what is described as a reef. Alluvial gold was gold that had come loose from its original host, and had been deposited by water action into creeks and rivers.

Quartz

Quartz is a hard, crystalline mineral composed of silica (silicon dioxide).The atoms are linked in a continuous framework of SiO 4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2.Quartz is the second most abundant mineral in Earth''s continental crust, behind feldspar.. Quartz exists in two forms, the normal α-quartz ...

Ore-shoot formation in the Main Reef Complex of the ...

 · Past and current mining at the central Fairview Mine have focused on the laterally extensive Main Reef Complex (MRC), an arcuate, intermittently developed shear-zone system that extends for over 5 km between the Fairview and Sheba mines in the lower parts of the Fig Tree Group of the Ulundi Syncline (Fig. 1b and Online Resource 1).High-grade gold-sulfide ore is confined to a …

Vein (geology)

The difference between 19th-century and 21st-century mining techniques and the type of ore sought is based on the grade of material being mined and the methods of mining which are used. Historically, hand-mining of gold ores permitted the miners to pick out the lode quartz or reef quartz, allowing the highest-grade portions of the lodes to be ...

Natural Gold Indicators (Part 1)

 · Mining reports will often mention if gold veins occur in the quartz. Another thing worth noting about the quartz is that the kind of quartz that gold is generally found in is not pure white. Most commonly it will show significant iron staining, and the quartz will have a dirty appearance with reddish/brown stains.

NI 43−101 Technical Report on the Blanket Gold Mine, …

Quartz Reef (data source: Blanket Mine, 2009) 38 Table 17-1 Cut-off grades used for the December 2010 Mineral Reserves and Mineral Resources Update 63 Table 17-2 Upper cut-off grades and dilution factors used for the December 2010 Mineral Reserves and

Overview

All the gold production from the Blackwater Mine came from the Birthday Reef, a single quartz vein that was mined continuously for over 1,000m in strike and over 710m in depth. A JORC compliant Mineral Resource was calculated by OceanaGold Corporation.

Grand Reef Mine (MRDS #10039486) PB, CU

between 1890-1900 mine opened to depth of 300 ft. HAULAGE LEVEL I N 1950 WAS ADIT 1400 FT LONG AND WINZE EXTENDED 300 FT BELOW ADIT WITH 3 LEVELS OF DRIFTS AT 100 FT INTERVALS Reference information

Silver Reef Mine (Reef Mine; Cholla Mine; Silver Nugget ...

Silver Reef Mine (Reef Mine; Cholla Mine; Silver Nugget Mine), White Horse Pass area, Silver Reef Mountains area, Chuichu area, Tat Momoli Mountains, Silver Reef Mining District, Pinal Co., Arizona, USA : A former underground Pb-Ag-Cu-Au-Mo-silica mine located in sec. 23, T8S, R5E, about 2½ miles SW of White Horse Pass and about 3¼ miles SSW of Chuichu, on Indian Reservation land (located on ...

Hustlers Reef Gold Mining Reserve | Goldfields Guide

Take a short stroll through the Hustlers Reef Gold Mining Reserve and learn about the history of one of Bendigo''s richest underground mines - and the site of the town''s worst mining accident. Detailed information signs along the walking track present the operations and successes of the The Great Extended Hustlers Mine, along with the 1914 disaster which saw seven miners killed in an explosion ...

Some History of Simmons Reef, Blackwood. | Blackwood ...

The book gives detailed information on the Quartz mining in Simmons Reef with information on the Mines there and miners who lived in the area and worked in the mines. Also the school, church, Hotels and early pioneers, and the history of the place now called the ''Garden of St Erth''.

Navarre Minerals (ASX:NML) intersects quartz reef ...

 · Navarre Minerals (NML) intersects a quartz reef structure at the St Arnaud Gold Project in Victoria The new structure has been identified on the New Bendigo Line where Navarre is conducting 5000 metres of drilling Latest drill results have returned shallow gold grading up to …

Eureka Reef | Goldfields Guide

The Eureka Reef Gold Mines consists of a range of mining sites documenting quartz and alluvial gold mining operations carried on from the mid 1850s to 1950s. The focal point of the precinct is the Eureka Reef glory hole and its associated cluster of stamping batteries and habitation sites.

Historical gold maps of the Victorian Goldfields ...

 · Shows quartz veins, scattered quartz, shafts, silurian and recent. Area covers Axedale, Wellsford and Ellensmere. Mining surveyors map of the district of Sandhurst, 1871. Showing the different companies and ground leased up to November 1st, 1871. Sandhurst gold field, 1873. Shows reefs and blocks held under leasing.

quartz-reef

Now, quartz-reef mining is proverbially uncertain. Impressions of South Africa. For a few yards your quartz-reef may be extremely rich, and thereafter the so-called "shoot" may stop, and the vein contain so little gold as not to pay the cost of working. Impressions of South Africa. The strike ran parallel with the quartz-reef, north 5º east ...

Gold Project Inventory

The Tower Hill or Perseverance reef was actively mined during the early 1870''s and prior to 1875 was reported to have crushed 2069 tonnes of quartz yielding 68,195 grams of gold (33 gm. Au/tonne) however at relatively shallow depth (20 metres) heavy water flows were encountered and mining ceased. The reef strikes at 105° and was averaging 0.77 ...

Quartz reef mining

Quartz reef mining played an important role in 19th century gold-mining districts such as Bendigo, Victoria, Central Otago in New Zealand, and the California mother lode at least the shallow, oxidized zones of quartz reef deposits, the gold occurs in its metallic state, and is easily recovered with simple equipment.. Contents. Mining; Processing; Quartz mines

Gold mining companies

Hiscock''s Reef. Imperial Co. - Imperial Quartz Mining Co. - New Imperial Gold Mining Co. - One and All Co. - Standard Quartz Mining Co. Mount Egerton . Black Horse Mining Company - Black Horse United Co. - Egerton and Gordons Mining Co. - Egerton Cyanide Works - New Black Horse Mining Company - Wellesley QGMC. Mount Mercer