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Dumbara
Dumbara is a town located in the Ratnapura District, Sri Lanka Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an .... It has a long history of mining activities. It is where the first commercial operating graphite mine in the country, opening in 1840. Populated places in Ratnapura District {{SriLanka-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ratnapura District
Ratnapura ( Sinhala: රත්නපුර දිස්ත්රික්කය, Tamil: இரத்தினபுரம் மாவட்டம்) is a district of Sri Lanka in the Sabaragamuwa Province. The gem-mining centre of Sri Lanka is also a major crossroad between southern plains and the hill country to the east. A bustling market city servicing most of the surrounding towns. Many of the prominent gem dealers in Sri Lanka operate from this town. There is a route to Sri Pada from Ratnapura direction. Excursions include Sinharaja Forest Reserve and Udawalawe National Park. The surrounding area is a popular trekking destination and a good place for bird watching. Religion The majority of the population are Buddhists. Other religions include Hinduism, Islam and Christianity.Department of Census and StatisticThe Census of Population and Housing of Sri Lanka-2011/ref> Major cities * Ratnapura (Municipal Council) Large towns * Balangoda (Urban Council) * Embili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, and southeast of the Arabian Sea; it is separated from the Indian subcontinent by the Gulf of Mannar and the Palk Strait. Sri Lanka shares a maritime border with India and Maldives. Sri Jayawardenepura Kotte is its legislative capital, and Colombo is its largest city and financial centre. Sri Lanka has a population of around 22 million (2020) and is a multinational state, home to diverse cultures, languages, and ethnicities. The Sinhalese are the majority of the nation's population. The Tamils, who are a large minority group, have also played an influential role in the island's history. Other long established groups include the Moors, the Burghers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphite
Graphite () is a crystalline form of the element carbon. It consists of stacked layers of graphene. Graphite occurs naturally and is the most stable form of carbon under standard conditions. Synthetic and natural graphite are consumed on large scale (300 kton/year, in 1989) for uses in pencils, lubricants, and electrodes. Under high pressures and temperatures it converts to diamond. It is a weak conductor of heat and electricity. Types and varieties Natural graphite The principal types of natural graphite, each occurring in different types of ore deposits, are * Crystalline small flakes of graphite (or flake graphite) occurs as isolated, flat, plate-like particles with hexagonal edges if unbroken. When broken the edges can be irregular or angular; * Amorphous graphite: very fine flake graphite is sometimes called amorphous; * Lump graphite (or vein graphite) occurs in fissure veins or fractures and appears as massive platy intergrowths of fibrous or acicular crystalline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
