Organic gem Healing crystal
Freshwater Mussel Shell
✦ Stone of River Calm & Nurture ✦
Crystal lore: 🌊 Calm💗 Love🌿 Healing
Also known as: Unionidae, River mussel shell
Variety of Nacre.
📜 Key facts
| Age | Modern (recent shells) |
|---|---|
| Origin & sources | Rivers of the eastern and central USA, including Arkansas (the White, Black and Cache rivers). Arkansas once had a large freshwater pearl and button-shell industry. |
| Composition | Shell of freshwater mussels (family Unionidae): calcium carbonate (aragonite) with a pearly nacre (mother-of-pearl) lining |
How it forms
Mussels build their shells from aragonite. Thin, stacked aragonite platelets in the inner layer form iridescent nacre. Many North American freshwater mussels are threatened or endangered and are protected. Don't take live mussels, and collect only empty shells where local rules allow it.
Mineral data: see Nacre.
🌍 Where it's found
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
🔗 See also
Learn more
Organic gem
White & Clear
SacralHeart
CalmLoveHealing
Healing crystal




