Avdoninite Mineral Data

General Avdoninite Information
Chemical Formula:	K2Cu5Cl8(OH)4•H2O
Composition:	Molecular Weight = 765.55 gm
	Potassium 10.01 % K 12.06 % K₂O
	Copper 41.50 % Cu 51.95 % CuO
	Hydrogen 0.78 % H 6.98 % H₂O
	Chlorine 37.46 % Cl 37.46 % Cl
	- % Cl -8.45 % -O=Cl₂
	Oxygen 10.24 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	K_1.96Cu₅Cl_8.09(OH)_3.87•1.03(H₂O)
Environment:	Fumarole exhalation sediments.
IMA Status:	Approved IMA 2005 (Dana # Added)
Locality:	Yadovitaya fumarole in the Second Cinder Cone at the Northern Breach of the Great Fissure Tolbachik Eruption, Tolbachik volcano, Kamchatka Peninsula, Russia. Link to MinDat.org Location Data.
Name Origin:	Named for Vladimir Nikolaevich Avdonin (b 1925), a senior researcher of the Ural Geological Museum of the Ural State Mining University.
Synonym:	IMA2005-046a