At Baizapur they are slightly ferruginous, and rock crystals found in cavities and cracks are sometimes of the amethystine variety. Crystalline flows are more frequent in the country beyond the right bank of the Sivna. The low hills of Kundala, from Jarur to Janifal, are covered with basalt. A considerable quantity of very black soil containing basaltic boulders is seen towards Tharoda, near which village the amygdaloidal flows again make their appearance. Towards Kanhar amygdaloidal and vesicular traps, occasionally reddened, occupy the higher parts of the valley of the Sivna. The green mineral glauconite is very abundant, coating cavities and nodules. The lower portions of the valley near the river generally contain crystalline flows. The Surpanath hill consists of four heavy terraces, each capped with ashy and vesicular trap, interstratified as usual with anamesitc. Basaltic boulders occur on the summit, but the hill is mainly composed of amygdaloidal flows. On one side there is a kind of cave excavation much filled up, in the perpendicular scrap of some ashy trap forming the first terrace of the hill. Thin partings of clay for red bole hardened into a sort of clay-stone from one to two feet thick are also frequent. A considerable amount of agate, heliotrope, jasper, zeolite, and calcite is found among the nallas and hills.
