Ottosdal is a small
town
A town is a human settlement. Towns are generally larger than villages and smaller than cities, though the criteria to distinguish between them vary considerably in different parts of the world.
Origin and use
The word "town" shares an ori ...
situated at an altitude of 1,479 meters (4,855 feet) on the branch
railway
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...
line from
Makwassie in the central
North West Province
North West is a province of South Africa. Its capital is Mahikeng. The province is located to the west of the major population centre of Gauteng and south of Botswana.
History
North West was incorporated after the end of Apartheid in 1994, an ...
of
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...
. Ottosdal is a farming community engaged in the growing of grains such as maize (mielies),
sunflower
The common sunflower (''Helianthus annuus'') is a large annual forb of the genus ''Helianthus'' grown as a crop for its edible oily seeds. Apart from cooking oil production, it is also used as livestock forage (as a meal or a silage plant), as ...
and peanuts. In addition, local farmers raise cattle, sheep, pigs, dairy cows and chicken. A major
pyrophyllite
Pyrophyllite is a phyllosilicate mineral composed of aluminium silicate hydroxide: Al2Si4O10(OH)2. It occurs in two forms (habits): crystalline folia and compact masses; distinct crystals are not known.
The folia have a pronounced pearly luste ...
mine lies near it on the farm Gestoptefontein. This town originated from the establishment of a
Dutch Reformed Church
The Dutch Reformed Church (, abbreviated NHK) was the largest Christian denomination in the Netherlands from the onset of the Protestant Reformation in the 16th century until 1930. It was the original denomination of the Dutch Royal Family and ...
parish in 1913. To this was added a church building on Korannafontein, the farm of Gerhardus Petrus Otto. The town is known as the birthplace of "Die Baas", who was born there in 1952. Ottosdal grew around the church and was officially registered in 1917 and named after G. P. Otto (de Jager 1997).
Climate
Ottosdal has a relatively hot and dry climate. Summers are very hot. Winter, which seldom last more than two to three months a year, is characterized by cold nights and mild to warm days. The average yearly rainfall is 550 mm (21.6 inches). Precipitation primarily occurs between October to April in the form of heavy thunderstorms during the mid-summer and light rain in the Autumn. Hail can occur between December and February and it only snows once a decade at most. Between August and October, strong winds and dust storms can occur (de Jager 1997).
Cultural and historic sites
Some of the cultural and historical sites in and near Ottosdal are:
* Trenches, cemeteries and British forts dating to
Second Boer War
The Second Boer War ( af, Tweede Vryheidsoorlog, , 11 October 189931 May 1902), also known as the Boer War, the Anglo–Boer War, or the South African War, was a conflict fought between the British Empire and the two Boer Republics (the Sout ...
, which are located on the farms Gestoptefontein and Driekuil. Driekuil contains structures, which once were the headquarters of Major General Walter Kitchener, a major British Commanders in the western
Transvaal Transvaal is a historical geographic term associated with land north of (''i.e.'', beyond) the Vaal River in South Africa. A number of states and administrative divisions have carried the name Transvaal.
* South African Republic (1856–1902; af, ...
. Also, there is the "Garden of Remembrance", which contains the graves of soldiers killed during the Second Boer War.
* The Ouplaas, one of the few surviving
Boer
Boers ( ; af, Boere ()) are the descendants of the Dutch-speaking Free Burghers of the eastern Cape Colony, Cape frontier in Southern Africa during the 17th, 18th, and 19th centuries. From 1652 to 1795, the Dutch East India Company controll ...
mansions. It was built in 1907 for D. G. van der Merwe by the Italian architect, Sribante. It survives today as the Old Farm Guest House, "Ouplaas Gastehuis", which lies about west of Ottosdal.
* The farm Rietkuil which belonged to Boer prophet
Siener van Rensburg
Nicolaas Pieter Johannes ("Niklaas" or "Siener") Janse van Rensburg (3 August 1864 – 11 March 1926) was a Boer from the South African Republic – also known as the Transvaal Republic – and later a citizen of South Africa who was consid ...
. He is buried, along with the members of various other
Voortrekker
The Great Trek ( af, Die Groot Trek; nl, De Grote Trek) was a Northward migration of Dutch-speaking settlers who travelled by wagon trains from the Cape Colony into the interior of modern South Africa from 1836 onwards, seeking to live beyon ...
families, near Ottosdal. His prophesies about the Boer War, the 1914-1915 rebellion, the death of General Koos de la Rey and other events brought him to prominence among the Boere and South Africans in general.
* Khoisan (Late Stone Age) Rock Engravings on local farms. This rock art included petroglyphs showing game such as elephants, rhinos, ostriches, lions, buffalo, baboons, snakes and giraffes, which once occurred locally in great abundance thousands of years ago.
* A collection of African artifacts housed in a 1910 farmhouse converted to a museum.
* An 1860 water mill, which has been dedicated as a national monument.
* A church belonging to the
Dutch Reformed Church
The Dutch Reformed Church (, abbreviated NHK) was the largest Christian denomination in the Netherlands from the onset of the Protestant Reformation in the 16th century until 1930. It was the original denomination of the Dutch Royal Family and ...
. It was built in 1918; used until 1955; and is now a national heritage site.
* and from Ottosdal is the site of the Battle of Boschbult of the
Second Boer War
The Second Boer War ( af, Tweede Vryheidsoorlog, , 11 October 189931 May 1902), also known as the Boer War, the Anglo–Boer War, or the South African War, was a conflict fought between the British Empire and the two Boer Republics (the Sout ...
. It occurred on March 31, 1901.
Pyrophyllite mines
A major industry of the Ottosdal area is the
pyrophyllite
Pyrophyllite is a phyllosilicate mineral composed of aluminium silicate hydroxide: Al2Si4O10(OH)2. It occurs in two forms (habits): crystalline folia and compact masses; distinct crystals are not known.
The folia have a pronounced pearly luste ...
mines located on the farm Gestoptefontein. These mines produce a very high quality pyrophyllite, which is a
phyllosilicate
Silicate minerals are rock-forming minerals made up of silicate groups. They are the largest and most important class of minerals and make up approximately 90 percent of Earth's crust.
In mineralogy, silica (silicon dioxide, ) is usually consid ...
mineral
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. ( ...
composed of
aluminium
Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. I ...
silicate
In chemistry, a silicate is any member of a family of polyatomic anions consisting of silicon and oxygen, usually with the general formula , where . The family includes orthosilicate (), metasilicate (), and pyrosilicate (, ). The name is al ...
hydroxide
Hydroxide is a diatomic anion with chemical formula OH−. It consists of an oxygen and hydrogen atom held together by a single covalent bond, and carries a negative electric charge. It is an important but usually minor constituent of water. I ...
: AlSi
2O
5OH. The pyrophyllite is a
metamorphosed
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock (protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, causi ...
clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4).
Clays develop plasticity when wet, due to a molecular film of water surrounding the clay par ...
. The clay was formed by the alteration of
volcanic ash
Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, created during volcano, volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used t ...
, which apparently accumulated at the bottom of a quiet body of water. It forms a dense, but soft light grey, or darker, fine-grained stone, which splits into well-defined slabs. The
strata
In geology and related fields, a stratum ( : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as ei ...
, in which it occurs, is a 3.0 to 3.1 billion year-old, over 2 kilometer-thick assemblage of arenaceous sediments,
conglomerates, grits, basic
volcanic
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
On Earth, volcanoes are most often found where tectonic plates a ...
s,
tuff
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into a solid rock. Rock that contains greater than 75% ash is considered tuff, while rock cont ...
s, coarse
pyroclastic
Pyroclastic rocks (derived from the el, πῦρ, links=no, meaning fire; and , meaning broken) are clastic rocks composed of rock fragments produced and ejected by explosive volcanic eruptions. The individual rock fragments are known as pyroc ...
rocks and
quartzite
Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tect ...
called the "Dominion Group".
Originally,
pyrophyllite
Pyrophyllite is a phyllosilicate mineral composed of aluminium silicate hydroxide: Al2Si4O10(OH)2. It occurs in two forms (habits): crystalline folia and compact masses; distinct crystals are not known.
The folia have a pronounced pearly luste ...
was quarried and locally used for tombstones and building stone and to carve ornaments and utensils such as pots, dishes and cases. Currently, it is milled and processed near where it is mined to produce material used for the production of a wide variety of products. They include acid-resistant lab ceramics, refractory bricks and linings, filler in paint, electrical insulation, boilermaker's chalk, chromic-acid purification pots, and crucibles used in the manufacture polycrystalline-diamonds. Blocks of pyrophyllite are stilled quarried and sold as either "Wonderstone" or "African Stone" for sculpting. It can be easily carved with rasps and power tools and finished with a beautiful polish. The quarries are also the source of naturally grooved, spherical to disk-shaped, and sometimes intergrown
concretion
A concretion is a hard, compact mass of matter formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil. Concretions are often ovoid or spherical in shape, although irregular ...
s composed of either
hematite
Hematite (), also spelled as haematite, is a common iron oxide compound with the formula, Fe2O3 and is widely found in rocks and soils. Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of . ...
,
pyrite
The mineral pyrite (), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Iron, FeSulfur, S2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral.
Pyrite's metallic Luster (mineralogy), lust ...
, or
wollastonite
Wollastonite is a calcium inosilicate mineral ( Ca Si O3) that may contain small amounts of iron, magnesium, and manganese substituting for calcium. It is usually white. It forms when impure limestone or dolomite is subjected to high temperature ...
, which are collected by gem, mineral, and rock collectors and
subject of much folklore.
References
de Jager, J. P., 1997, "Ottosdal" Ottosdal Tourism Society
External links
*Lanham, A. 2004
New horizons for Wonderstone Creamer's Media Mining Weekly Online (December 4, 2004)
North-West Province
{{Authority control
Populated places in the Tswaing Local Municipality
Populated places established in 1917