K2Cr2O7 crystals; their structure and twins
Authors:
Abstract
Crystals of potassium dihydroxide were measured by Schabus (Wien. Ak. Veg. 1850) and he also stated a very perfect cleavage along {001} and less perfect along {100} and {010}. Potassium dichromate releases from aqueous solutions (t = + 20° C.) as well-formed crystals with growth planes {001} or {101}, which, as is known, belong to the pinacoidal class of the triclinic system of cubic type.
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