Aragonite
CaCO3
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Aragonite is the high-pressure polymorph of calcium carbonate. It is less stable than calcite at Earth's surface conditions and will convert to calcite over geological time. Mother of pearl and most pearls are composed of aragonite.
| 晶系 | Orthorhombic |
| 矿物分类 | 05 Carbonates and Nitrates |
| 莫氏硬度 | 3.5-4.0 |
| 比重 | 2.93-2.95 |
| 颜色 | Colorless, white, yellow, blue, green |
| 光泽 | Vitreous |
| 条痕色 | White |
| 解理 | Poor {010} |
| 断口 | Subconchoidal |
| 透明度 | Transparent |
| 晶体习性 | Prismatic, acicular, twinned pseudo-hexagonal |
莫氏硬度
Mohs Hardness: 3.5 – 4.0
1 Soft10 Hard
晶系
OrthorhombicFrequently Asked Questions
What is the hardness of Aragonite?
Aragonite has a Mohs hardness of 3.5-4.0.
What crystal system does Aragonite belong to?
Aragonite crystallizes in the Orthorhombic crystal system.
What color is Aragonite?
Aragonite is typically Colorless, white, yellow, blue, green.
What type of luster does Aragonite have?
Aragonite exhibits a Vitreous luster.
What is the chemical formula of Aragonite?
The chemical formula of Aragonite is CaCO3.