metavariscite
/ˌmɛtəˈvarɪsʌɪt/ /ˌmɛtəˈvarɪskʌɪt/Mineralogy
noun
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.
Origin
1920s. From meta- + variscite.