Morganite
Morganite is a cyclosilicate mineral valued for its hardness and gem potential.
基本资料
| 化学式 | Be3Al2Si6O18 |
|---|---|
| IMA 代号 | Brl |
| 施特龙茨分类 | 9.CJ |
| 晶系 | 六方晶系 |
| 点群 | 6/mmm |
| 稀有度 | 较少见 |
| 收藏级别 | 柜藏经典 |
| 变种来源 | 绿柱石 |
| 模式产地 | Pala, California, USA |
Morganite is the pink-to-peach gem variety of beryl, coloured by traces of manganese. It was named in 1911 after the financier and gem collector J. P. Morgan. Its soft, romantic pink has made it a popular modern jewellery stone, often shown in large, clean crystals.
Properties
Like all beryl it is hexagonal, hard (7.5–8) and forms prismatic to tabular crystals. Morganite is usually remarkably clean, and some material is gently heated to remove yellowish tints and emphasise the pink.
Occurrence
It forms in granitic pegmatites alongside other gem beryls. Brazil, Madagascar, Afghanistan, Pakistan and California (the Pala district) are notable sources. Related beryls include aquamarine, heliodor and colourless goshenite.