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Rubellite is the red or pink variety of tourmaline and is a member of elbaite. Rubellite is also the rarest gem in its family. [2] It is occasionally mistaken for ruby. [3] These gems typically contain inclusions. [4] Notable countries where rubellite can be mined include Afghanistan, Brazil, Madagascar, Myanmar, Nigeria, Russia, and the United ...
Today this tourmaline locality (type locality for dravite) at Dobrova (near Dravograd), is a part of the Republic of Slovenia. [9] Tschermak gave this tourmaline the name dravite, for the Drava river area, which is the district along the Drava River (in German: Drau, in Latin: Drave) in Austria and Slovenia.
Elbaite, a sodium, lithium, aluminium boro-silicate, with the chemical composition Na(Li 1.5 Al 1.5)Al 6 Si 6 O 18 (BO 3) 3 (OH) 4, [4] is a mineral species belonging to the six-member ring cyclosilicate tourmaline group. Elbaite forms three series, with dravite, with fluor-liddicoatite, and with schorl.
Mineral details specifying species of tourmaline etc, and then a seperate section dealing with the gem varieties (that are typically based on color - ignoring the mineral species), rubellite, indicolite, paraiba, bicolor, etc. BTW I would like to confirm whether the statement made by Krementz that "almost all the jewelry-usable material is ...
The first 12-team College Football Playoff bracket is set. Here's what to know, including a full schedule of bowl games and how to watch the action.
The Washington Post argued in a new editorial that the benefits of gender-transition treatments for minors like puberty blockers have not been scientifically proven. "Treatment results that look ...
A health insurance policy is a insurance contract between an insurance provider (e.g. an insurance company or a government) and an individual or his/her sponsor (that is an employer or a community organization).
Donald Trump mocked Canadian Prime Minister Justin Trudeau after his top minister’s surprise resignation following a clash on how to handle the president-elect’s looming tariffs.
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