Merrillite Mineral Data

General Merrillite Information
Chemical Formula:	Ca18Na2Mg2(PO4)14
Composition:	Molecular Weight = 2,145.59 gm
	Sodium 2.14 % Na 2.89 % Na₂O
	Calcium 33.62 % Ca 47.04 % CaO
	Magnesium 2.27 % Mg 3.76 % MgO
	Phosphorus 20.21 % P 46.31 % P₂O₅
	Oxygen 41.76 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Ca₁₈Na₂Mg₂(PO₄)₁₄
Environment:	Extraterrestrial bodies. The name merrillite was proposed in 1917.
IMA Status:	Approved IMA 1977
Locality:	Meteorites Link to MinDat.org Location Data.
Name Origin:	Named after George Perkins Merrill (1854-1929), meteorite specialist at U. S. National Museum, Smithsonian Institution, Washington, D.C. USA.
Synonym:	Merrillite-Na