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Pure fluorite is colourless and transparent, both in visible and ultraviolet light, but impurities usually make it a colorful mineral and the stone has ornamental and lapidary uses. Industrially, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels.
Possible medical uses of liquid breathing (which uses pure perfluorocarbon liquid, not a water emulsion) involve assistance for premature babies or for burn patients (if normal lung function is compromised). Both partial and complete filling of the lungs have been considered, although only the former has undergone any significant tests in humans.
Fluoride was known to enhance bone mineral density at the lumbar spine, but it was not effective for vertebral fractures and provoked more nonvertebral fractures. [62] In areas that have naturally occurring high levels of fluoride in groundwater which is used for drinking water, both dental and skeletal fluorosis can be prevalent and severe. [63]
Fluoride is a mineral that occurs naturally in water, soil and air that has been demonstrated to prevent dental cavities, or tooth decay. Here is what you need to know about fluoridation of ...
Antozonite with calcite from the Margnac Mine, Compreignac, Haute-Vienne, Limousin, France - (6x5.5cm) Fluorite (antozonite) from Wölsendorf, Oberpfalz, Southern Germany Antozonite (historically known as Stinkspat , Stinkfluss , Stinkstein , Stinkspar [ 1 ] and fetid fluorite [ 2 ] ) is a radioactive fluorite variety first found in Wölsendorf ...
[1]: 53 Pliny describes the mineral as having a "great variety of colours" with "shades of purple and white with a mixture of the two". [1]: 53 Whether this mineral was banded fluorite is uncertain, but it was apparently soft enough (like fluorite) to allow one particular man of consular rank to gnaw at the edges of his cup.
To reduce water retention, cut out alcohol for a while or make sure to alternate alcohol with a glass of water. Remember: The recommended intake for women is no more than one drink per day. 6.
In soft waters with low ionic content, invertebrates and fishes may develop adverse effects from fluoride concentration as low as 0.5 mg/L. Negative effects are less in hard waters and seawaters, as the bioavailability of fluoride ions is reduced with increasing water hardness [34] Seawater contains fluoride at a concentration of 1.3 mg/L. [35]