Zirconium,—a metal obtained from the mineral zircon and hyacinth, in the form of a black powder, $7,200.
Lithium,—an alkaline metal, the lightest metal known, $7,000.
Glucinum,—a metal in the form of a grayish-black powder, $5,400.
Calcium,—The metallic base of lime, $4,500.
Strontium,—a malleable metal of a yellowish color, $4,200.
Terbium,—obtained from the mineral gadolinte, found in Sweden, $4,080.
Yttrium,—discovered in 1828, is of a grayish-black color, and its lustre perfectly metallic, $4,080.
Erbium,—a metal found associated with yttrium, $3,400.
Cerium,—a metal of high specific gravity, a grayish-white color, and a lamellar texture, $3,400.
Didymium,—a metal found associated with cerium, $3,200.