Bergartsblok

Bergartsblok is a traditional Dutch term referring to a type of stone block used primarily in the construction of windmills, particularly those found in the Netherlands. The term combines *bergart* (meaning "mountain stone" or "hard stone") and *blok* (meaning "block"), highlighting its composition and purpose. These blocks were often sourced from quarries in regions such as the Netherlands, Belgium, or Germany, where durable limestone or sandstone was abundant.

The blocks were typically rectangular or square, varying in size depending on their intended use. They were commonly employed in the construction of the lower sections of windmills, such as the foundation, the base of the sails, and structural supports. Their strength and resistance to weathering made them ideal for withstanding the forces exerted by the rotating sails and the weight of the mill itself. In many cases, bergartsblok was combined with other materials like brick or wood to create a stable and long-lasting structure.

Windmills incorporating bergartsblok were often found in the Netherlands, particularly in regions like Zuid-Holland and Noord-Holland, where they played a crucial role in milling grain, draining polders, and pumping water. The durability of these stone blocks contributed to the longevity of many historic windmills, some of which remain standing today as cultural landmarks.

While bergartsblok was most commonly associated with windmill construction, similar stone blocks were also used in other Dutch buildings, such as churches and fortifications, where their strength was essential. The use of such materials reflected the practical engineering traditions of the time, balancing cost, availability, and structural integrity. Today, bergartsblok serves as a reminder of the architectural techniques and materials that shaped the Netherlands' built heritage.