METHOD OF REFINING NATURALLY OCCURRING JADEITE Russian patent published in 1997 - IPC

Abstract RU 2088417 C1

FIELD: mining industry. SUBSTANCE: jadeite is etched with nitric acid solution, dyed with dye mixture containing active green 5G and chromium green at ratio 5:1. EFFECT: optimized dye composition.

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RU 2 088 417 C1

Authors

Chistjakova S.A.

Goncharova S.N.

Mar'In A.A.

Kovalenko I.V.

Kostelova T.G.

Dates

1997-08-27—Published

1994-10-26—Filed