For your specialist mineral & aggregate needs

Flint

UK Supplier

Calcined Flint

Calcined flint is an acid-insoluble functional filler for use in a variety of resin systems, as well as decorative applications.

Flint is off-white in colour, with small amounts of pink grey and black. It has a Mohs hardness of 7 and is angular in shape.

Particle sizes available:

  • 1.6-2.5 mm
  • 2-3mm
  • 2-5mm

Available in standard 25kg polythene bags, on pallets of 1050kg and also in bulk bags. Other bag sizes are available on request.

Packaging & lead time

All packaged products are available from 25kg bags - 1500kg bulk bags from our central store. Read more about packaging and lead time.

Interested in Flint?

Minerals Marketing Limited

Sales, information, technical advice & quotes

Properties of flint

Durability Enhancement

Flint is used in resin systems to improve the
overall durability of the final product, providing resistance to wear and abrasion.

Aesthetic Qualities

It can be utilised to enhance the appearance of resin systems, offering a natural and refined finish.

Hardness Improvement

The incorporation of flint increases the hardness of
the resin, making it suitable for applications requiring superior strength.

Thermal Stability

Flint contributes to the thermal stability of the
resin, allowing it to withstand higher temperatures without degradation.

Cost-Effectiveness

By serving as a filler, flint reduces the amount of
resin needed, potentially lowering production costs.

Interested in Flint?

Minerals Marketing Limited

Sales, information, technical advice & quotes

Packaging & lead time

All packaged products are available from 25kg bags - 1500kg bulk bags from our central store. Read more about packaging and lead time.

Common questions

Lead times are two days for all bagged products. For blending or specialist requirements, lead times will be agreed in advance for your convenience.

For most bulk products, next day deliveries are available through our streamlined bulk tanker/tipper service.

Read more about packaging and lead time.

All packaged products are available from 25kg bags - 1500kg bulk bags from our central store.

Read more about packaging and lead time.

Flint is a hard, sedimentary cryptocrystalline form of quartz. It typically occurs in chalk or limestone formations and is most commonly found in areas with significant geological history, like England and France.

Historically, flint was widely used by early humans for making tools and weapons due to its ability to be chipped into sharp edges. It was also essential in striking fires.

Flint is primarily considered a type of rock, although it is composed of the mineral quartz. As it forms in sedimentary layers, its classification as a rock is more accurate.

Flint can usually be identified by its smooth texture, glassy appearance, and its tendency to break with a conchoidal fracture. It often appears in nodules and has a waxy lustre. When broken, its interior can reveal colours ranging from dark grey to brown.

Flint formations are extracted through quarrying or collection from natural outcrops. Once obtained, flint is often knapped or chipped using specific tools, a process that shapes it into desired forms for practical or decorative use.

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Minerals Marketing Limited

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