Manipura

Not to be confused with Manipura (Mahabharata), Manipur Kingdom, or Manipur.
Manipura chakra is shown as having ten petals, bearing the Sanskrit letters ḍa, ḍha, ṇa, ta, tha, da, dha, na, pa, and pha. The seed sound in the centre is ram. The tattwa for the element of Fire is shown (here in outline) as a red triangle.
Tantric chakras

Manipura (Sanskrit: मणिपूर, IAST: Maṇipūra) is the third primary chakra according to Vedic tradition.