Mineral Species containing Rhenium (Re)

Element Properties, Isotopic Compositions for Rhenium

**Rhenium (Re) Element Properties**
Atomic Mass	186.207
Atomic Number	75
Name Origins	After the Rhine river.
Year Discovered	1925
Discovery Credits	W. Noddack, Ida Tacke, and O. Berg in Berlin, Germany.
Remarks	Silvery metal, usually obtained as gray powder. Resists corrosion and oxidation but slowly tarnishes in moist air. Dissolves in nitric and sulfuric acids. Used in filaments, thermistors, and catalysts. Diagnostic tests: There are no simple chemical tests for rhenium. The element is usually found as an alloy or a sulfide mineral with other platinum group metals. Atomic Absorption Spectroscopy is used for quantitative analysis and Energy Dispersive Analysis of X-rays (EDAX) is used for qualitative analysis.
References	Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.
See Also	WebElements, ChemiCool

**Naturally Occurring Isotopes**
Symbol	Isotope Mass	Isotope Nuclide Number	Isotope Number	Natural Abundance	Half-life	Half-life Units	Decay Mode	Decay Mode MeV	Decay Mode %
Re	184.952951	185	75	37.4000%		Stable
Re	186.955744	187	75	62.6000%	4.5 x 10¹⁰	Years	beta -	0.0025	100.0%

Rhenium (Re) Minerals sorted by Descending Weight Percent

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**3 Minerals containing Rhenium (Re) sorted by Descending Weight Percent**
% Re	Mineral Name	Chemical Formula	MW
100.00 % Re	Rhenium *	Re	186.21
74.38 % Re	Rheniite !	ReS2	250.34
54.73 % Re	Tarkianite !	(Cu,Fe)(Re,Mo)4S8	952.63

( Bold - Valid Mineral Name)
(* - Mineral Name is Not IMA Approved)
(! - New Dana Classification Number Has Been Changed or Added)
(? - IMA Discredited Mineral Species Name)
(# - Grandfathered as valid)