Pegmatites में होने वाला एक जटिल काला खनिज

samarskite's Usage Examples:

The element was discovered in 1880 in the mineral samarskite by C. Marignac (Comptes rendus, 1880, 90, p. 899; Ann.

CERIUM (symbol Ce, atomic weight 140.25), a metallic chemical element which occurs with the rare earths in the minerals cerite, samarskite, euxenite, monazite, parisite and many yttrium minerals.

It is found in the minerals gadolinite, cerite, samarskite and fergusonite, and is usually obtained from cerite.

Throughout his life he paid great attention to the "rare earths" and the problem of separating and distinguishing them; in 1878 he extracted ytterbia from what was supposed to be pure erbia, and two years later found gadolinia and samaria in the samarskite earths.

It is usually found associated with tantalum, the chief minerals containing these two elements being tantalite, columbite, fergusonite and yttrotantalite; it is also a constituent of pyrochlor, euxenite and samarskite.

The rare earth metals are found in the minerals gadolinite, samarskite, fergusonite, euxenite and cerite.

Cleveite, samarskite and fergusonite contain a little more than monazite.

samarskite's Meaning':

a complex black mineral occurring in pegmatites

Synonyms:

Gd, pegmatite, mineral, atomic number 64, gadolinium,

Antonyms:

organic,