The geological formation of the Brescian Eastern Prealps originated in the Mesozoic period. Through a slow process of sedimentation which began about 205 million years ago, carbonate platforms formed in a tropical inland sea environment of shallow waters. Botticino Classico is extracted from the top layer of the geologic formation called Corna, which is derived directly from carbonate mud sedimentations. Rocks emerging from the marble basin are sedimentary in origin. Their carbonate nature is the result of a diagenesis of marine deposits such as mud and organic and inorganic elements.

Botticino Classico is the last remaining proof of the existence of a carbonate platform in the province of Brescia. Either found in solid form or in metre long beds separated by clay joints, its lithology is mainly a cementation of compact lightly coloured limestone, which varies in tone from white through to ivory with hints of chestnut. The rock has thin chestnut coloured stylolites almost parallel to the sedimentation level.