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      7th Class - Sulfates, Selenates, Tellurates, Chromates, Molybdates, Wolframates This class represents great group of minerals with respective complexes: SO₄, TeO₄, CrO₄, MoO₄, WO₄ tetrahedra. This class is classified into groups of hydrous and anhydrous minerals.

baryt s ankeritem

No. of sample:	g9113
Mineral:	baryt, HOR
Description:	jeden kus /19x17cm/
Localization:	Kladno - Dubí, důl Zápotocký /Prago/
Origin:	coll.V.Šafránek
Author:
Comment:	krystaly na stěnách dutin pelosideritu, nález 1950

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