Yazganite Mineral Data

General Yazganite Information
Chemical Formula:	NaFe+++2(Mg,Mn)(AsO4)3•H2O
Composition:	Molecular Weight = 602.82 gm
	Sodium 3.78 % Na 5.09 % Na₂O
	Magnesium 2.46 % Mg 4.08 % MgO
	Manganese 2.92 % Mn 3.77 % MnO
	Zinc 0.22 % Zn 0.27 % ZnO
	Iron 18.99 % Fe 27.15 % Fe₂O₃
	Arsenic 37.16 % As 60.97 % AsO₃
	Hydrogen 0.29 % H 2.63 % H₂O
	Oxygen 34.18 % O
	______ ______
	100.00 % 103.95 % = TOTAL OXIDE
Empirical Formula:	Na_0.99Fe³⁺_2.05Mg_0.61Mn²⁺_0.32Zn_0.02As_2.99O₁₂�0.88(H₂O)
Environment:	Found in fissures 1 m thick in porphyric andesite. The Erciyes stratovolcano is composed of calc-alkaline basaltic andesite and dacite lavas with intercalated pyroclastics. Alluaudi te group.
IMA Status:	Approved IMA 2003 (Dana # Added)
Locality:	Erciyes volcanic complex, 10 km south of the prefecture of Kayseri, near Hisarcik, Kiranardi, Turkey. Link to MinDat.org Location Data.
Name Origin:	Named for Dr. Evren Yazgan (b. 1943), a geologist in Turkey who worked in this region.
Synonym:	IMA2003-033