Is a Chakram a ranged or Melee weapon?

For the purposes of using Sharpshooter (-5/+10 Dam) can I use a Chakram?

The weapon is from the Odyssey of the dragon lords campaign with a description of: Thylean Weapon: Chakram Martial Weapon. Damage: 1d6 slashing. Properties: Thrown (range 60/120 ft.), light, finesse, special: The chakram returns to you when thrown, unless you fumble the attack by rolling a natural 1. Weight: 2 lbs. Cost 10 gp.

Im assuming a martial weapon can be melee or ranged. Is it possible the Chakram is both a melee weapon and a ranged weapon?

Please only use RAW to answer the question. Thanks.