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Emperor of China Chien-lung
Qianlong Qianlong (1711-1899) was the emperor of China and an ideal Confucian ruler during the height of the last dynasty, the Qing (Ch'ing). Qianlong (Ch'ien-lung, Hung-li) was born into the Aisin Gioro clan of the Manchu people, a seminomadic race living in Manchuria. During the closing... Read more |
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carve
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Quartz crystals
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status crystallization
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Monte Alban
Monte Albán , ancient city, c.7 mi (11.3 km) from Oaxaca, SW Mexico, capital of the Zapotec . Monte Albán was built on an artificially leveled, rocky promontory above the Valley of Oaxaca. Located around an enormous plaza about 1,000 ft (300 m) long and 650 ft (198 m) wide are long,... Read more |
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Aphanitic
Aphanitic Crystalline rocks with mineral grains that cannot be distinguished from one another without magnification have an aphanitic igneous texture. Igneous rocks form by crystallization of minerals from liquid magma rising into the upper portion of Earth's crust from the lower crust and... Read more |
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ilmenite
ilmenite , black mineral, iron titanium oxide, FeTiO 3 , crystallizing in the hexagonal system. It is sometimes found as tabular hexagonal crystals but occurs more commonly as small grains in igneous and metamorphic rocks and in sands derived from them. Ilmenite has been noted as an important... Read more |
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migmatite
Migmatite A migmatite, or "mixed rock" in Greek, is a banded, heterogenous rock composed of intermingled metamorphic and igneous components. Veins, contorted layers, and irregular pods of silica-rich granite occur within the structure of foliated iron and magnesium-rich metamorphic rocks like... Read more |
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Iron ores
ROCKS CONCEPT It might come as a surprise to learn that geologists regularly use an unscientific-sounding term, rocks. Yet as is almost always the case with a word used both in everyday language and within the realm of a scientific discipline, the meanings are not the same.... Read more |
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Max von Laue
Max von Laue , 1879-1960, German physicist, studied under Max Planck. From 1919 he was professor of theoretical physics at the Univ. of Berlin. He worked out a method for measuring X-ray wavelengths, in which a crystal (rock salt) is used, producing diffraction of the rays. For this work, which also... Read more |
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Asian art market: some astonishing discoveries come to the market in an...
...this year, a rock-crystal ewer was offered...revivalism, but a rock-crystal ewer...and cannot be carved but only slowly...museums--it is carved with four characters...imperial hand of Qianlong', and ... |