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Zeolite & Related Crystals

Prehnite

Translucent lime-green, often with black epidote needles.

Natural colours
Mineral groupSilicate
Chemical formulaCa₂Al(AlSi₃O₁₀)(OH)₂
Crystal systemOrthorhombic
Hardness (Mohs)6 – 6.5

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

About the stone

What is Prehnite?

Prehnite is a calcium aluminium silicate with a soft, translucent green to yellow-green colour. It forms rounded, bubbly (botryoidal) crusts, and material from Australia and Mali often contains black needles of epidote.

It was the first mineral to be named after a person, Dutch colonel Hendrik von Prehn.

Traditionally associated with

  • Unconditional love
  • Inner knowing
  • Calm
  • Preparation and planning

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 Prehnite 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: Didier Descouens — CC BY-SA 4.0, via Wikimedia Commons — source
  • Photo: Didier Descouens — CC BY 4.0, via Wikimedia Commons — source
  • Photo: Ivar Leidus — CC BY-SA 4.0, via Wikimedia Commons — source
  • Photo: Marie-Lan Taÿ Pamart — CC BY 4.0, via Wikimedia Commons — source