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  2. List of compositions by Johann Joachim Quantz - Wikipedia

    en.wikipedia.org/wiki/List_of_compositions_by...

    The sonatas by Quantz are numbered as follows: 88–105, 142, 219–254 & 265–361. The 121 sonatas by Frederick II are: 106–141, 143–218 & 255–264. The sonatas with a Roman numeral numbering are part of the collection Sonata a flauto traverso solo e cembalo da Gio: Gioacchino Quantz . QV 1: 1 – Flute Sonata No. 360 in C major.

  3. Quartz - Wikipedia

    en.wikipedia.org/wiki/Quartz

    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, therefore, classified structurally as a framework silicate mineral ...

  4. Kienzle Uhren - Wikipedia

    en.wikipedia.org/wiki/Kienzle_Uhren

    Website. www.kienzle1822.de. Kienzle Uhren GmbH are Germany's oldest watchmakers. The company was founded by Johannes Schlenker in 1822 in Schwenningen, Germany. Since 2002, the company's headquarters have been in Hamburg, Germany.

  5. Egyptian faience - Wikipedia

    en.wikipedia.org/wiki/Egyptian_faience

    Tile frieze with lotus and grapes. Egyptian faience is a sintered-quartz ceramic material from Ancient Egypt. The sintering process "covered [the material] with a true vitreous coating" as the quartz underwent vitrification, creating a bright lustre of various colours "usually in a transparent blue or green isotropic glass".

  6. List of minerals - Wikipedia

    en.wikipedia.org/wiki/List_of_minerals

    Amethyst crystals – a purple quartz Apophyllite crystals sitting right beside a cluster of peachy bowtie stilbite Aquamarine variety of beryl with tourmaline on orthoclase Arsenopyrite from Hidalgo del Parral, Chihuahua, Mexico Aurichalcite needles spraying out within a protected pocket lined by bladed calcite crystals Austinite from the Ojuela Mine, Mapimí, Durango, Mexico Ametrine ...

  7. List of rock types - Wikipedia

    en.wikipedia.org/wiki/List_of_rock_types

    Chert – Hard, fine-grained sedimentary rock composed of cryptocrystalline silica. Claystone – Clastic sedimentary rock composed primarily of clay-sized particles. Coal – Combustible sedimentary rock composed primarily of carbon. Conglomerate – Sedimentary rock composed of smaller rock fragments.

  8. Category:Quartz varieties - Wikipedia

    en.wikipedia.org/wiki/Category:Quartz_varieties

    Varieties of the mineral Quartz. Subcategories. This category has the following 2 subcategories, out of 2 total. C. Chert‎ (3 C, 23 P) Q. Quartz gemstones‎ (2 C ...

  9. Concord Watch - Wikipedia

    en.wikipedia.org/wiki/Concord_watch

    Dubbed the world's thinnest watch, it ranged from $4,900 to over $20,000 for customized models with diamonds. Concord Watch Company is a Swiss luxury goods company that is part of the Movado group, which produces and distributes Movado, Ebel, Coach, and Hugo Boss -branded watches. Founded in 1908, Concord was purchased in 1970 by the North ...

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