roselite
/ˈrəʊzəlʌɪt/Mineralogy
noun
A rare mineral containing arsenic and cobalt, typically occurring as rose-red or pink prismatic crystals.
- Roselite is an arsenate of calcium, cobalt, and magnesium, Ca2(Co,Mg)(AsO4)2·2H2O. Crystal system: monoclinic..
Origin
Early 19th century. From the name of Gustav Rose, German mineralogist + -lite.