Properties of Aragonite
Aragonite is a mineral form of calcium carbonate that crystallizes in the orthorhombic crystal system. It is known for its distinct, needle-like crystal formations, which can be prismatic or acicular.
The following table provides a comprehensive list of aragonite properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).
Note: click on the icon to switch between Metric and Imperial units.
Physical Properties | Metric |
---|---|
Chemical Formula | CaCo3 |
Molar Mass | 100.087 g/mol |
Crystal System | Orthorhombic |
Mohs Hardness | 3.5 - 4 |
Density | 2940 - 2950 kg/m3 |
Color | Colorless, white, gray, yellowish white, or reddish white |
Diaphaneity | Transparent to translucent |
Luster | Vitreous (glassy) |
Cleavage | (010) distinct |
Fracture | Subconchoidal |
Streak | White |
Thermal Properties | Metric |
Specific Heat Capacity (Cp) | 822 J/kg·K |
Note: unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)
Related Pages
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017.