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Tequesquite aka ''tequexquite'' or ''tequixquitl'' (the tetl Nahuatl, 'stone'; quixquitl 'gushing', 'stone leaving alone, efflorescent') is a natural mineral salt, used in Mexico since pre-Hispanic times mainly as a food seasoning. Chemically it is an alkaline rock composed of various minerals, which changes its ratio according to where is obtained. It consists mainly of sodium bicarbonate and common salt (sodium chloride), but also contains potassium carbonate, sodium sulfate and clay. Its appearance is similar to that of common table salt in coarseness, but with a more greyish color. It is classified into four types: mousse, confitillo, husk and dust. The first two, which are the best, are obtained from the recession of water, and the latter two natural efflorescence. The latter contain more dirt, so the other two are preferred. In industry it is also used with fats - saponified to make soap and prepare canvases. Some locations in Mexico where it is mined are Lake Texcoco, Tequixquiac and Tequexquinahuac in the state of Mexico, Laguna Tequesquitengo in the state of Morelos, Nopalucan and Tequexquitla, in the state of Tlaxcala, Tequisquiapan, in the state of Querétaro , Tequesquite, in the state of Jalisco, Totolcingo lagoon in the state of Puebla and La Salada, in the state of Zacatecas. Sometimes it is confused with nitro tequesquite salt, but its chemical composition is completely different. ==History== At the time of the Aztecs, was obtained from Lake Texcoco, especially in the dry season. This lake is salt water, and when the water level of the lake fell or retreated, the water evaporates remained as sediment in some wells tequesquite salt. It is also found as efflorescent natural formation, leaving the soil by capillarity. Another place where salt was abundant population of Iztapalapa, which also traded salt. It should be noted that for the Aztecs, salt was a luxury, so the lower classes could not afford it easily. Currently, it can be bought in the markets of some towns in Mexico; it is still an ingredient used in many dishes. However, baking soda and table salt may be substituted, but tradition dictates that the taste of tequesquite not be replaced. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tequesquite」の詳細全文を読む スポンサード リンク
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