Indochine Black Tektite Gem & Crystal for Your Personal Use is a Meteorite. The Black Tektite Gem & Crystal can be worn in your pocket, held during meditation, or placed in a room. Tektite is one of my top stones to have and use, it is super powerful in strengthening your field and physical body. It is said to have been hit by a meteorite and has ET properties. Product Details: Available in various shapes, it has a glass like material with a dull, crater finish Pieces vary slightly in size and shape on the average they are approximately 1.5 inches x 1 inch Tektite absorbs negative energy from people, EMF, and radiation while it powers up your field This is a MUST have Gem & Crystal...I always wear my Tektite! I will choose the perfect stone for you or you can also comment on your shape preference.