ransomite
/ˈransəmʌɪt/ /ˈrans(ə)mʌɪt/Mineralogy
noun
A rare mineral formed by the burning of copper pyrites in a mine and occurring as blue transparent crusts and radiating tufts of acicular crystals.
- Ransomite is a hydrated sulphate of copper, ferric iron, and aluminium, Cu(Fe,Al)2(SO4)4·7H2O. Crystal system: monoclinic..
Origin
1920s. From the name of Frederick Leslie Ransome, U.S. mining geologist + -ite.