Hafnium is an element not a rock. Hafnium is never found in nature pure form so does not fit into any groups.
Hafnium is a chemical element, a metal placed in the group 4 and period 6 of the Periodic Table of Mendeleev.
Hafnium is currently found in Group IV B and Period 6.
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Hafnium (Hf) is a natural chemical element.
Titanium belongs to same family as Hafnium. Both of them belongs to group-4.
Position of hafnium in the periodic table: group 4, period 6, atomic number 72.
The element hafnium belongs to the transition metals, and is a member of Group 4 of the modern periodic table. A link can be found below.
titanium zirconium hafnium rutherfordium
Hafnium is a natural chemical element, rare, solid transition metal, atomic number 72, group 4 and period 6 in the table of elements.
Hafnium is malleable.
Hafnium is a shiny, silvery metal that does not have a distinct color.
Zinc is a metal element and is not classified under a specific mineral group. It is commonly found in nature as the mineral sphalerite, which is a zinc sulfide.
The tourmaline group (cyclosilicates)