| The most common minerals of chlorine are halite, or rock salt, sylvite, and carnallite. |
| A bitter taste and squeaking under a rotating knife-point indicate that some of the red layers contain sylvite. |
| Sylvite, also called sylvine, is a major source of potassium or potash used in fertilizer products. |
| When the solution reaches one-tenth the volume of the original, more soluble minerals like sylvite and halite form. |
| It occurs naturally as the mineral sylvite and in combination with sodium chloride as sylvinite. |
| Water decomposes kainite to epsomite and sylvite. |
