metavarisciten.
/ˌmɛtəˈvarᵻsʌɪt/, /ˌmɛtəˈvarᵻskʌɪt/, U.S. /ˌmɛdəˈvɛrəˌsaɪt/, /ˌmɛdəˈvɛrəsˌkaɪt/ Mineralogy.
A monoclinic form of hydrated aluminium phosphate, AlPO4·2H2O, which is dimorphous with the orthorhombic form (variscite), and occurs as minute, pale green, tabular crystals in cavities in massive variscite.
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the world > the earth > minerals > types of mineral > phosphates > [noun] > hydrous aluminium phosphates
hydrargillite1805
wavellite1805
brazilianite1818
lasionite1819
peganite1832
fischerite1846
variscite1850
planerite1868
sphaerite1868
trolleite1868
metavariscite1925
1925 E. S. Larsen & W. T. Schaller in Amer. Mineralogist 10 23 (heading) The identity of variscite and peganite and the dimorphous form, metavariscite.
1940 Amer. Mineralogist 25 719 (heading) Clinobarrandite and the isodimorphous series, variscite-metavariscite.
1975 Nature 9 Oct. 474/1 Table 1 shows these d spacings along with those obtained by X-ray diffraction and those of the minerals sterrettite, variscite and meta-variscite.
1996 Mineral. Mag. 60 671 (title) Variscite and metavariscite from Gunheath china clay pit, St. Austell, Cornwall.
This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022).
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n.1925