Gaylussite
Bulganak mud volcano field, Bondarenkovo Village area, Kerch Peninsula, Crimea, Ukraine
4.3 x 3.8 x 3.4 cm. Mineral specimens of any species are rare from this very obscure locality near the famous and extinct phosphate deposits of the Kerch Peninsula. Gaylussite is a rare hydrated carbonate with alkali metals found in lacustrine (lake) clay sediments in an alkali lake. Bone-white gaylussite has pseudomorphed a stellate floater ...
© Rob Lavinsky & irocks.com