礦物資料庫與水晶療法礦物TvrdýiteHenk Smeets – tomeikminerals.com·CC BY 4.0·WikimediaTvrdýiteFe2⁺Fe3⁺2Al3(PO4)4(OH)5(H2O)4·2H2OMonoclino root IMA approved成分Composizione (% in peso)OPFeAlOOxygen56.4%PPhosphorus16.2%FeIron14.6%AlAluminium10.6%HHydrogen2.2%詞源命名來源 Jaromír Tvrdý.
