Good condition.
The stage intends for the quantitative analysis of mineralogical structure of rocks an optical geometrical linear method. It can use for estimates of percentage of ore components at enrichment of ores and studying of alloys, together with for other researches.
Also it can be used both for passing and for reflected light (polarized and ordinary). The stage has six counting drums that allows to conduct quantitative estimate of mineralogical structure of breed of six components at the same time