tribasic calcium phosphate

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tri·ba·sic cal·ci·um phos·phate

used as an antacid.
References in periodicals archive ?
Main discordances were observed in the 2 stones primarily composed by carboapatite, stone #5 and #81, in which protein or Whitlockite were recognized, respectively.
By performing shock and compression experiments on a synthetic version of whitlockite, scientists found that the mineral became "dehydrated" from the shocks, effectively forming merrillite.
"If even a part of merrillite had been whitlockite before, it changes the water budget of Mars dramatically," Oliver Tschauner, professor of research in the Department of Geoscience at UNLV and co-leader of the study, said in a statement.
Burnstein et al performed x-ray diffraction and chemical analyses of six parotid gland stones and found that the three major crystalline components were apatite, magnesium-substituted whitlockite, and octacalcium phosphate.
However, their relevance to biomineralization is clear considering the facts that [alpha]-TCP is easily hydrolyzed to OCP and that the mineral whitlockite, which is found in many biological mineralizations, has a structure very similar to that of [beta]-TCP (28).
Since the x-ray powder patterns of whitlockite and [beta]-TCP or Mg-containing [beta]-TCP are not easily distinguished, the names have been used interchangeably and synonymously.
The species is whitlockite, best known heretofore in microcrystals from the Palermo #1 mine, New Hampshire, and other old phosphate pegmatite occurrences.
collinsite-fairfieldite, whitlockite, two unidentified phases, spodumene, quartz, cookeite, rhodochrosite, "apatite" and sphalerite.
Associated minerals in the type specimen are: quartz, fluorapatite, copper, whitlockite, barite, an unidentified Ca-Fe-phosphate (probably mitridatite) and bariosincosite.
Associated minerals are: cuprite, quartz, goethite, copper, fluorapatite, whitlockite, barite, and springcreekite.
American mineralogist, after whom whitlockite was named, he was once curator of mineralogy at the American Museum of Natural History and wrote several books on minerals and gems, including the classic monograph Calcites of New York (Albany, 1910).