Kyanite, chalcedony.

Kyanite colors - blue, green, white, dark gray and black. Blue (most common) - encourages peace and quiet, as well as improves communication and mental understanding. A crystal with an extremely light and fast vibration that instantly activates the higher chakras and carries enlightenment. Helps to quickly enter deep meditation. Promotes speech skills. Good for meditation and relaxation. Kyanite does not store negative energy, so it should never be purified. Attracts light beings (angels, spiritual leaders). Balances the chakras (sometimes very fast and suddenly). Removes blockages. Cleanses the energy field and creates a protective shield. Helps to open the third eye, which promotes telepathy, intuition, clairvoyance and other mental abilities.