The present article reveals that silicate solubilizing microbes are essential part of weathering silicate minerals. Alumino-silicate group appears the most minerals to weathering by several bacteria. The contribution of biological agents in weathering has attracted increased   interests as several genera of microorganisms, therfore referred as '' silicate bacteria'' were found to decompose aluminosilicate minerals to increase potassium, silicon and aluminum in an available forms for plant nutrition.Thus, the magnitude of the role of such bacteria in the decomposition of alumino-silicates and releasing the elements contained therein as well as in the elements uptake by plants was found of great  interest .  The article concluded that effect of silicate bacteria in minerals weathering, soil formation, elements cycling and plant nutrition. Therefore, the speculate that the classic weathering sequence is not just chemical weathering.  But should be interpreted as a   mixture of chemical and biochemical weathering.