In the upper ore layer is the borax, overlying a layer of borax and kernite.
In the kernite material, for example, the powder factor was increased by 38-40%, partly accomplished to increase the blasthole diameters in the ore and basalt from 177.
It is a bedded, lenticular sedimentary sequence of borax and kernite crystals together with claystone.
The ore consists of a lenticular sedimentary facies of borax and kernite together with varying amounts of interstitial and interbedded claystone.
The expanded plant is designed to increase capacity and to use RTM's new technology, Modified Direct Dissolving of Kernite
Ore (MDDK), a process which allows sodium borate and boric acid production to continue until end of mine life.