Mineral Species containing Calcium (Ca)

Element Properties, Isotopic Compositions for Calcium

**Calcium (Ca) Element Properties**
Atomic Mass	40.078
Atomic Number	20
Name Origins	Latin, calx ="lime."
Year Discovered	1808
Discovery Credits	Isolated by Sir Humphry Davy in London, UK.
Remarks	Silvery white, relatively soft metal obtained from fused calcium chloride by electrolysis. Protected by oxide/nitride film and can be worked as a metal. Used in alloys and in manufacture of Zr, Th, U, and rare earth metals. Lime (CaO) used in metallurgy, water treatment, chemicals, building, etc. Diagnostic tests: Infusible calcium minerals glow with exaggerated incandescence in the flame test (along with Sr, Mg, Zr, Zn, Ce - the "lime light effect"). Sometimes, a orange red flame color may be observed if interfering Sr or Na is not present (try calcite moistened with HCl). Only a few minerals give this calcium color decisively when heated alone. In solution, (NH₄)₂CO₃ will precipitate calcium as an insoluble carbonate (along with Ba and Sr). Dissolve the precipitate in HCl and try the flame test for Ca (orange red), Ba (green), or Sr (purple red).
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 Units
Ca	39.962591	40	20	96.9410%	Stable
Ca	41.958619	42	20	0.6470%	Stable
Ca	42.958766	43	20	0.1350%	Stable
Ca	43.95548	44	20	2.0860%	Stable
Ca	45.953689	46	20	0.0040%	Stable
Ca	47.9525334	48	20	0.1870%	Stable

Calcium (Ca) Minerals sorted by Mineral Name

Click here for List sorted by Weight Percent

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**1408 Minerals containing Calcium (Ca) sorted by Mineral Name**
% Ca	Mineral Name	Chemical Formula	MW
0.56 % Ca	Zircophyllite	K2(Na,Ca)(Mn,Fe++)7(Zr,Nb)2Si8O26(OH)4F	1,423.34
6.28 % Ca	Zirkelite	(Ca,Th,Ce)Zr(Ti,Nb)2O7	382.76
7.26 % Ca	Zirsilite-(Ce) !	(Na,[ ])12(Ce, Na)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)·H2O	3,310.41
2.73 % Ca	Zirsinalite	Na6(Ca,Mn,Fe++)Zr[Si6O18]	733.35
2.47 % Ca	Znucalite	CaZn11(UO2)(CO3)3(OH)20·4(H2O)	1,621.63
12.40 % Ca	Zodacite	Ca4Mn++Fe+++4(PO4)6(OH)4·12(H2O)	1,292.68
17.64 % Ca	Zoisite #	Ca2Al3(SiO4)3(OH) = Ca2AlAl2(SiO4)(Si2O7)O(OH)	454.36

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(? - IMA Discredited Mineral Species Name)
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