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Quartz Family

Chalcedony

Waxy, translucent microcrystalline quartz.

Natural colours
Mineral groupChalcedony
Chemical formulaSiO₂
Crystal systemTrigonal (microcrystalline)
Hardness (Mohs)6.5 – 7

Supplied by weight or by piece — raw, polished or made into jewellery. Sizes, grades and quantities on request.

About the stone

What is Chalcedony?

Blue chalcedony is a translucent microcrystalline quartz in soft lavender-blue to sky-blue shades, often with a gentle glow. Blue lace agate is a banded form of the same material.

Turkey, Namibia and Brazil are known sources. It is supplied as raw pieces, tumbled stones, cabochons and beads.

Traditionally associated with

  • Calm communication
  • Peace
  • Listening
  • Emotional balance

Care & cleaning

Clean with lukewarm water, a drop of mild soap and a soft brush, then dry with a soft cloth. Store apart from softer stones to avoid scratches.

Bulk & wholesale supply

Order Chalcedony in bulk

We supply raw stones, tumbled and polished pieces, carvings, beads and finished jewellery such as pendants and bracelets by the kilo or by the piece. Tell us what you need and we will reply with availability, sizes and lead time.

Photo credits
  • Photo: James St. John — CC BY 2.0, via Wikimedia Commons — source
  • Photo: James St. John — CC BY 2.0, via Wikimedia Commons — source