The word 'platinum' is correct and usable in written English.
It can be used as a noun, adjective, or verb. Example sentence: She was wearing a stunning platinum necklace.
The pebbles became known as platina del Pinto that is, granules of silvery material from the Pinto River, a tributary of the San Juan River in the Chocó region of Colombia.
(Its Spanish name, platina, meant "little silver").
By David Lardner and Russell Maloney The New Yorker, September 14, 1940 P. 11 Talk story about platina and silver fox.
At the August sales a perfectly acceptable neckpiece brought $400 or $500, the most expensive platina in town is now priced at $12,000.
Silver fox has been bred in Norway since 1913, the first platina appeared in 1933.
The platina fox is a mutation of silver fox, which in turn is a mutation of the red fox.
Since then fox breeders all over the world have been wheedling & bullying the silver fox into reproducing platinas.
"It's so big you could dive right into it," Ms. Platina-Phipps said.
He commissioned such great artists as Sandro Botticelli and Antonio del Pollaiuolo and pensioned such eminent men of learning as Bartolomeo Platina.
Her name was Nicole, but the Cuban servants called her La Platina.
Jana Plalsoa-Phipps also wears a large aquamarine engagement ring, one that belonged to her mother-in-law, Mary Phipps.
