Morganite
Morganite is beryl — the same mineral species as emerald and aquamarine, sharing their formula Be3Al2Si6O18 and their hexagonal crystal system. What separates the three is trace chemistry rather than anything structural: emerald’s green comes from chromium or vanadium, aquamarine’s blue from iron, and morganite’s pink-to-peach color from manganese. Seen side by side, it can be easy to forget they’re the same stone at all, which is exactly the kind of naming trap this site tries to flag rather than gloss over. For the full picture of the species they all belong to, see the beryl entry.
The name itself is relatively recent and well documented, unlike many gemstone names that trace back centuries with murky origins. Morganite was named in 1911 by gemologist and Tiffany & Co. gem buyer George Kunz, honoring the banker and prolific gem collector J. P. Morgan, whose patronage helped build major mineral and gem collections of the era, including significant donations to the American Museum of Natural History. Kunz has a second gemstone named after him too — kunzite, also from 1911 — making that year an unusually productive one for beryl-and-spodumene nomenclature tied to the same person.
At Mohs 7.5 to 8, morganite is a durable stone, sitting comfortably alongside its beryl relatives in everyday wearability — harder than quartz, tougher than many colored gems seen in fine jewelry. Its refractive index runs 1.562 to 1.602, and its color ranges from a pale, almost blush pink through peachy-orange tones, with some material subtly heat-treated to shift orange undertones toward a purer pink. Brazil, Madagascar, and Afghanistan are among the leading sources of gem-quality morganite, with additional material from the United States and Mozambique.
Large, clean crystals of morganite are relatively attainable compared with fine emerald, since beryl’s manganese-driven pink tends to grow in bigger, cleaner pieces than chromium-driven green, which is part of why morganite has become a popular centerpiece stone in engagement and statement jewelry over the past two decades despite its comparatively recent name. Much commercial morganite is also lightly heat-treated to reduce a yellowish undertone and push the color toward a cleaner pink, a widely accepted and stable treatment in the trade.
Morganite doesn’t appear on any of the historical or modern monthly birthstone lists, or on either zodiac system, tracked on this site — its 20th-century naming means it postdates most of the traditional systems documented here, and it hasn’t been formally adopted into the modern trade lists either.
Gemmological properties
| Mohs hardness | 7.5–8 |
|---|---|
| Crystal system | Hexagonal |
| Chemical formula | Be3Al2Si6O18 |
| Refractive index | 1.562–1.602 |
| Color family | Pink, Orange |
| Variety of | beryl |
| Also known as | — |
| Origins | Brazil, Madagascar, Afghanistan, United States, Mozambique |
| Organic material | No |
The pink-to-peach variety of beryl, the same species as emerald and aquamarine — its color comes from trace manganese. Named in 1911 after the banker and gem collector J. P. Morgan.
Frequently asked questions
- Is morganite related to emerald and aquamarine?
- Yes, directly. All three are beryl, chemically Be3Al2Si6O18 — the same species, just colored by different trace elements. Emerald gets its green from chromium or vanadium, aquamarine its blue from iron, and morganite its pink to peach from manganese.
- Why is morganite named after J. P. Morgan?
- It was named in 1911 by gemologist George Kunz, who worked for Tiffany & Co., in honor of the banker and gem collector J. P. Morgan, a major patron of gemstone and mineral collecting at the time. Kunz also has kunzite named after him.
- Is morganite a birthstone on any of the lists this site tracks?
- No. It doesn't appear on any of the historical, US, UK, or zodiac systems documented on this site — it's covered here as a standalone gemstone reference entry.