Welcome to the Qotho Minerals store, your trusted ISO 17034 accredited reference material producer in the mining & minerals industry. Our commitment to excellence in quality control and calibration sets us apart as a reliable partner for businesses engaged in the extraction, processing, and analysis of minerals.

If you cannot find what you are looking for in the below categories, DO NOT FRET! In addition to off‑the-shelf products, Qotho Minerals produces on-demand certified matrix-matched reference materials. This simply means we can elevate the precision of your testing.

Browse through our shop or contact us today to see how we can cater for your needs.

Chrome (69)

Cobalt (9)

Copper (23)

Gold (3)

Heavy Mineral Sands (1)

Iron (22)

Manganese (20)

Nickel (5)

PGMs (11)

Zinc (2)

Fun Fact: Some minerals exhibit a phenomenon called “fluorescence.” When exposed to ultraviolet (UV) light, certain minerals can emit visible light in different colours. For example, the mineral fluorite often fluoresces in various vibrant colours, such as blue, green, or purple, depending on the impurities present in the crystal lattice. This property is widely used not only for scientific identification of minerals but also for aesthetic purposes in the world of mineral collecting and jewellery. It adds an extra layer of beauty and intrigue to these naturally occurring crystals under special lighting conditions.