Look at the current
Natural tourmaline is a kind of tourmaline, which emits a weak electric current. You can see the current from the friction between the two.
see through light
Natural tourmaline has rich colors and high light transmittance. Generally, good tourmaline will have rich and bright colors when exposed to light.
Look at the texture
Observe tourmaline under strong light. It will contain natural inclusions and cracks. The better the quality, the less inclusions.
Look at the current
Natural tourmaline is a kind of tourmaline, which emits a weak electric current. You can see the current from the friction between the two.
see through light
Natural tourmaline has rich colors and high light transmittance. Generally, good tourmaline will have rich and bright colors when exposed to light.
Look at the texture
Observe tourmaline under strong light. It will contain natural inclusions and cracks. The better the quality, the less inclusions.