Semi-precious / industrial
Quartz
Clear and smoky quartz for lapidary, plus high-purity silica for industry.
Overview
Quartz spans our gem and industrial books. Clear rock crystal and smoky quartz go to cutters and specimen buyers; massive vein quartz is crushed and washed to a high-purity silica feed.
For industrial buyers the number that matters is the iron and alumina content, and we assay every industrial lot against those limits before offer.
Applications
- Lapidary and specimen crystal
- Silicon metal and ferrosilicon feed
- Glass and foundry sand
- Precision optics and oscillators
Also in our book
Rough and graded stones from Nigeria's pegmatite and alluvial fields.
Precious stone
Emerald
Beryl of gem quality from Nigeria's northern pegmatites, sorted and graded by parcel.
Precious stone
Sapphire
Corundum in blue, yellow and parti-colour from the basaltic fields of the north-east.
Precious stone
Tourmaline
The widest colour range in our gem book: pink, green, blue and bi-colour rubellite.
Trade desk
Enquire about Quartz
Send us the grade, volume and destination you need. We reply to trade enquiries within two business days.