Magnesioanthophyllite

General Information:
 Chemical Formula:
(Mg,Fe++)7Si8O22(OH)2
 Composition:
(Molecular Weight = 875.45 gm)
Magnesium 11.11 % Mg
Iron 19.14 % Fe
Silicon 25.67 % Si
Hydrogen 0.23 % H 
Oxygen 43.86 % O 
 Empirical Formula:
Mg4Fe2+3(Si8O22)(OH)2
 IMA Status:
Discredited IMA 1997
 Name Origin:
From its compostition and from the Latin anthophyllum - "clove" in allusion to the color.
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