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Flora Valve
respectively
improved quality
Less Heat Retention - Evaporative cooling and a low-power water pump assure minimal heat buildup/retention
Black Swallow Wollastonite Rock Dust Size:2KG (4.4 LB) Flora ValveWollastonite comes from the area around Seeleys Bay in Ontario. Its source is a high grade calcium silicate deposit that when mined and ground down provides an excellent rock dust made up of approximately 27% silicon, 16. 5% calcium, and 4% magnesium. Although most soils can benefit from the calcium addition, it is the silica content here that is of interest. Silica is a crucial mineral, as it contributes greatly to building the strength of cell
