Mineral Species sorted by the element Ra Radium

Radium (Ra ) by %

**Radium (Ra) Element Properties**
Atomic Mass	226.0254
Atomic Number	88
Name Origins	Latin, radius = "ray"
Year Discovered	1898
Discovery Credits	Pierre and Marie Curie at Paris, France.
Remarks	Radioactive element found naturally in uranium and thorium ores. Silvery, lustrous, soft. Annual production 100 gm. Formerly used in cancer therapy and for luminous paint; both used now rare. Reacts with oxygen and water.
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 %
Ra	223.018501	223	88	Trace	11.43	Days	alpha	5.979	100.0%
Ra	224.020186	224	88	Trace	3.66	Days	alpha	5.789	100.0%
Ra	226.025402	226	88	Trace	1,600	Years	alpha	4.78	100.0%
Ra	228.031064	228	88	Trace	5.75	Years	beta -	0.045	100.0%

Mineral Species sorted by the element Ra (Radium )

Click Here for Mineral Species Sorted By Mineral Name

%Ra	Mineral Name	Chemical Formula	MW
0.01%Ra	Radiobarite *	(Ba,Ra)SO4	233.40

(* - Mineral Name Is Not IMA Approved)
(! - New Dana classification added or changed from Danas New Mineralogy)
(? - IMA Discredited Mineral Species Name)

There are 1 minerals with Ra in the Mineralogy Database.

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Mineral Species containing Radium (Ra )

Radium (Ra ) by %

Mineral Species sorted by the element Ra (Radium )