Sodalite

Colour	Blue
Mohs hardness	5.5–6
Lustre	Dull vitreous to greasy
Streak	White
Crystal system	Cubic
Transparency	Transparent to translucent
Cleavage	Poor on {110}
Fracture	Conchoidal to uneven
Specific gravity	2.27–2.33

What is Sodalite?

Sodalite is a tectosilicate mineral with the formula Na8(Al6Si6O24)Cl2, with royal blue varieties widely used as an ornamental gemstone. Although massive sodalite samples are opaque, crystals are usually transparent to translucent. Sodalite is a member of the sodalite group with hauyne, nosean, lazurite and tugtupite.

How to identify Sodalite

Lustre: Dull vitreous to greasy.
Hardness: Mohs 5.5–6 — about as hard as a steel knife.
Streak: White.
Habit: Cubic crystal system.

Sodalite value

Based on 100 recent eBay sold listings, a polished / carved Sodalite typically sells for $6–$30 (about $0.04–$0.13 per gram for raw material). After eBay fees a seller nets roughly $9 on a median piece.

Recently sold	Weight	Sold	Date
Polished Crystal Obelisks / Towers - Choose Your Gemstone (Crafts, Art, Decor)	—	$10	2026-06-21
Sodalite Crystal Sphere 504 Grams 2.8”	504 g	$13	2026-06-21
137G Natural Blue Sodalite Hand Carved Piranha Crystal Gem Quartz Reiki Healing	137 g	$10	2026-06-21
1.32LB TOP! Natural sodalite quartz hand carved crystal skull gem reiki healing	599 g	$30	2026-06-21
445g Natural Sodalite Ball Blue Quartz Crystal Sphere Reiki Healing	445 g	$20	2026-06-21
137G Natural Blue Sodalite Hand Carved Piranha Crystal Gem Quartz Reiki Healing	137 g	$6	2026-06-22

Typical recently-sold prices, 2026-06. Condition, size and quality vary widely, so this is an estimate, not an appraisal. See current sold listings on eBay ↗. Full value guide · how we work this out.