Magnesium oxide (MgO), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium (see also oxide). It has an empirical formula of MgO and consists of a lattice of Mg2+ ions and O2− ions held together by ionic bonding. Magnesium hydroxide forms in the presence of water (MgO + H2O → Mg(OH)2), but it can be reversed by heating it to remove moisture.
Athens is the capital of Greece.
Magnesia, Ancient Greek: Magnēsía, deriving from the tribe name Magnetes, is one of the regional units of Greece. It is part of the region of Thessaly. Its capital is the city of Volos. About 70% of the population of Magnesia live in the Greater Volos area, which is the second-largest city in Thessaly and the third busiest commercial port in Greece.
Phthiotis is one of the regional units of Greece. It is part of the administrative region of Central Greece. The capital is the city of Lamia. It is bordered by the Malian Gulf to the east, Boeotia in the south, Phocis in the south, Aetolia-Acarnania in the southwest, Evrytania in the west, Karditsa regional unit in the north, Larissa regional unit in the north, and Magnesia in the northeast. The name dates back to ancient times. It is best known as the home of Achilles.
Periclase is a magnesium mineral that occurs naturally in contact metamorphic rocks and is a major component of most basic refractory bricks. It is a cubic form of magnesium oxide (MgO). In nature it usually forms a solid solution with wüstite (FeO) and is then referred to as ferropericlase or magnesiowüstite.
A refractory material or refractory is a material that is resistant to decomposition by heat, pressure, or chemical attack, and retains strength and form at high temperatures. Refractories are polycrystalline, polyphase, inorganic, non-metallic, porous, and heterogeneous. They are typically composed of oxides or carbides, nitrides etc. of the following materials: silicon, aluminium, magnesium, calcium, and zirconium.
Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO2) and is important as an ore of manganese. It is a black, amorphous appearing mineral, often with a granular, fibrous, or columnar structure, sometimes forming reniform crusts. It has a metallic luster, a black or bluish-black streak, and readily soils the fingers. The specific gravity is about 4.8. Its name is from the Greek for fire and to wash, in reference to its use as a way to remove tints from glass.
Agios Ioannis may refer to the following places or churches
Magnesia ad Sipylum was a city of Lydia, situated about 65 km northeast of Smyrna on the river Hermus at the foot of Mount Sipylus. The city should not be confused with its older neighbor, Magnesia on the Maeander, both founded by colonists from the Greek region of Magnesia.
Larissa is one of the regional units of Greece. It is part of the region of Thessaly. Its capital is the city of Larissa. Total population 284,325 (2011).
Preveza is one of the regional units of Greece. It is part of the Epirus region. Its capital is the town of Preveza.
Agia Triada, Ayia Triada or Hagia Triada is Greek for Holy Trinity, and common toponym. It may refer to:
Neochoraki may refer to several villages in Greece:
Mylopotamos may refer to several places in Greece:
Anilio may refer to several villages in Greece:
Paliouri may refer to the following settlements in Greece:
Ano Lechonia is a town in the Magnesia regional unit, Greece. Ano Lechonia was the seat of the former municipality of Artemida. The population of the village in 2011 was 1,068, the population of the community was 1,429. Ano Lechonia is situated in the northwestern part of the Pelion peninsula, 1.5 km from the Pagasetic Gulf coast, 3 km southwest of Agios Georgios Nileias, 4 km southeast of Agria and 11 km (7 mi) southeast of Volos.
Magnesium oxide, more commonly called magnesia, is a versatile mineral that when used as part of a cement mixture and cast into thin cement panels under proper curing procedures and practices can be used in residential and commercial building construction. Some versions are suitable for a wide range of general building uses and for applications that require fire resistance, mold and mildew control, as well as sound control applications and many other benefits. As an environmentally friendly building material, magnesia board has strength and resistance due to very strong bonds between magnesium and oxygen atoms that form magnesium oxide crystals.
Magnesia Prefecture was one of the prefectures of Greece. Its capital was Volos. It was established in 1899 from the Larissa Prefecture. The prefecture was disbanded on 1 January 2011 by the Kallikratis programme, and split into the regional units of Magnesia and the Sporades.
Corfu is a major island in Greece.
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