wilkeiten.
/ˈwɪlkiːʌɪt/ Mineralogy.
A silicate and sulphate mineral of the apatite group occurring as translucent pink or yellow hexagonal crystals (see quot. 1982).
ΘΚΠ
the world > the earth > minerals > types of mineral > phosphates > [noun] > phosphate of lime or apatite > varieties
spargelstone1804
asparagus stone1816
francolite1843
fluorapatite1849
staffelite1868
collophanite1892
fermorite1910
steadite1911
hydroxyapatite1912
wilkeite1914
collophane1917
hydroxylapatite1927
1914 Eakle & Rogers in Amer. Jrnl. Sci. 187 263 The writers take pleasure in naming it wilkeite in honor of R. M. Wilke, who as a mineral collector and dealer has done much to advance the science of mineralogy.
1937 Amer. Mineralogist 22 977 It has become necessary to investigate the substitutions of the sort found in wilkeite.
1975 Nature 27 Feb. 722/1 Among the minerals described to have any significant degree of P(V)–Si(IV) partial substitution are viseite, nagatelite and wilkeite, an apatite with partial SiO4 + SO4 substitution for PO4.
1982 Amer. Mineralogist 67 90 Wilkeite is not a valid mineral species, since it is only one of many solid solutions involving the six end-members fluorapatite, hydroxyapatite, chlorapatite, fluorellestadite, hydroxyellestadite, and chlorellestadite.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).
<
n.1914