Manganese Umber

Clay Application Description

When added to a red firing clay, manganese umber produces an attractive range of browns from speckled to nutmeg to chocolate, depending on your percentage, mixture, and sizing. This beautiful brown clay can then be used for bricks, pavers, roof tiles, and other ceramics.

If your manufacturing processes require, we can provide you with clear instructions for achieving the best suspension liquid for your purposes. To keep shipping costs down, we do not make the suspension ourselves.

  • Creating a range of colours from one pigment allows you to meet the needs of a wider selection of consumers without purchasing more products
  • Has become the industry standard for achieving brown colouration in ceramics



  • Between 9% and 13% irons
  • Manganese-to-iron ratio of 4.8:1
  • Milled to 98% below 45 micron / 325 mesh
  • Naturally contains 46% to 48% manganese
  • Available at 42% manganese upon request
  • Percentage added to clay in your own processing can be between 2% and 6%, depending on the desired colour and the clay


General Information

Manganese umber is a brown ceramic pigment that comes from large natural deposits in Africa. For over ten years, we’ve focused on a particular deposit of manganese umber, because it produces consistent and high-quality texture and colour in the finished product.

The manganese dioxide can withstand temperatures up to 1280° Celsius. Some clays become vitreous and unstable at such high temperatures, so use caution. If your clay is stable enough, firing above 1150° Celsius reduces the percentage of manganese umber needed to achieve the desired colour.

African Pegmatite has a large global footprint with over 170 million coloured bricks produced every year from its products.

Data Sheets


Choose the packaging and shipping arrangement that best suits your needs, from small packaging to bulk bags or custom sizes made just for you. We can accommodate virtually any size, from one metric ton to thousands.


We maintain competitive pricing in an effort to win and retain your business for as long as you need us. Our goal is to meet the needs of every customer, including those with special requests and demanding production schedules.

A 15-day general turnaround for manufacturing allows us to get your compounds to you as quickly as possible, so you can keep up with the demands of your business. Contact us to get in touch with a distributor in your area if you don’t have time to wait for materials.

We currently ship to 44 countries across the world and we’re happy to ship to yours, too. The dependable and professional logistics channels we have in place make it easy to offer great pricing and service regardless of your location.

African Pegmatite

With 48 years as professionals in mining and manufacturing, we have the insight, network, and experience to offer you the very best in quality, service, and efficiency. We’ve been accredited by the ISO 9001 since 2002 and have most recently met the 2015 standard.

We aim to provide the very best materials available to our customers, and become your one-stop shop for colourants, minerals, compounds, and more. Take a look at our general clay and ceramic page to see all the other clay and ceramic products we have available.

If you’d like to become a distributor of African Pegmatite products, get in touch with us and we’ll customise an arrangement with you.