How to Tumble and Polish Kyanite

How to Tumble Kyanite

• 1

  Mix silicon carbide with equal parts water. Place it in the tumbler cavity.

• 2

  Add the kyanite, turn on the tumbler and allow it to tumble for 24 hours.

• 3

  Stop the tumbler and drain the solution. Replace the solution with a more diluted solution of 1 part silicon carbide and 1 1/2 parts water, place it in the tumbler cavity and tumble for 24 hours.

• 4

  Repeat Steps 5 to 7, but use a silicon carbide solution of one part silicon carbide and two parts water.

• 5

  Perform one last drain and tumble with a diluted solution of one part silicon carbide and three parts water. Tumble for 24 hours.

How to Polish Kyanite

• 6

  Perform the tumble process in Section 1 until the stone is smooth and corners and sharp edges have been eliminated.

• 7

  Remove the Kyanite from the tumbler.

• 8

  Dip the leather polishing rag in silicon dioxide. Work the leather polishing rag over the stone. Repeat until the stone has a shiny appearance.

• 9

  Rub the felt polishing rag over the stone to remove any residue left from the tumble.