BIOTITE GRANITE

Arose from Tampin, Negeri Sembilan, biotite granite is an igneous rock characterised by its mineral composition, primarily consisting of quartz, feldspar (including both potassium feldspar and plagioclase feldspar), and biotite (mica). Notably, its geological age can be traced back to the Late Triassic period (230 - 200 million years ago).

The distinctive feature of biotite granite is the presence of biotite. Biotite is a dark-coloured mineral that imparts a dark appearance to the rock. The dark colour of biotite, combined with quartz and feldspar, gives biotite granite a mottled or speckled appearance, often with a combination of light and dark minerals.

It exhibits a coarse-grained texture, with mineral grains visible to the naked eye. The coarse texture contributes to the durability of the rock. Biotite granite is popular in construction due to its robust nature and aesthetic appeal.