CRYSTALOX is the Trademark of the high-purity alumina manufactured by RSA in France from the alum process. Our know-how, allows us to deliver you products with high quality and purity. Our R&D works every day to improve processes and products to make CRYSTALOX, the partner of your quality and your future

Our ranges :	Ultra high purity alumina	Ultra high purity alum (5N)	Dense alumina microbeads	Sapphire and Crystals	Doped alumina powder	Special oxides

Our services :	Calcination	Atomization	Milling	Sieving

CRYSTALOX High Purity Alumina

CRYSTALOX is High Purity Alumina manufactured by the alum process and characterized by homogeneous and highly pure crystal structure.

Our products

About RSA

100

years of experience
100%

Eco-friendly oriented

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Applications

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Aeronautics & Aerospace industry

LED Lighting

Watch industry

Technical & transparent Ceramics

Lithium-ion batteries

Crystals & Sapphires

All applications

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April 21, 2021

Spinel powder for Transparent & translucent ceramics

RSA offers its customers a complete range of spinel powder, perfectly adapted to the manufacture of transparent ceramics. Depending on the final product and its specifications, we can offer you different levels of purity while keeping an extremely l...

December 14, 2020

Dense alumina microbeads, World-class innovation !

Dense alumina microbeads A wide range of High tech applications : the physical and chemical characteristics make this product unique, the RSA dense alumina microbeads are becoming a successful solid and technical additive. Main advantages :...

November 4, 2020

New high purity alumina range

Why RSA High purity alumina RSA offers a range of ultra pure alumina from the alum process. We control all the steps of the process, from the alum production to the delivery of a standard or "customized" 4N (99.998%) alumina. We offer you an ultra...

High purity alumina & special oxides