Properties of Chlorite

Chlorite is a group of common phyllosilicate minerals characterized by their green color and a platy or foliated crystal habit. The chlorite group includes several minerals, with the most common being clinochlore, chamosite, and nimite.

Image of chlorite mineral
Credit: Rob Lavinsky, iRocks.com - CC-BY-SA-3.0, via Wikimedia Commons

The following table provides a comprehensive list of chlorite 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.

Table of Chlorite Properties
Physical Properties
Metric
Chemical Formula(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Crystal SystemMonoclinic
Mohs Hardness2 - 3
Density3000 kg/m3
ColorGreen
LusterVitreous (glassy)
Cleavage(001) perfect
FractureUneven in steps, brittle

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.