Amethyst

Amethyst is an extremely popular stone among collectors. It is a stone of balance & stability, and was used by ancient civilizations in wine glasses to prevent drunkenness. Amethyst is a wonderful stone for developing one's spiritual abilities, such as intuition, clairvoyance, and connecting with one's spirit guides. Amethyst can raise the vibration in both people and other crystals, making it a good stone for getting rid of negative energies. Amethyst strengthens the bond between mind, body, & spirit and helps to heal holes or weak spots in one's aura. It can be very useful in meditation, allowing its user to access higher vibration realms and to overall bring yourself to the next level in the metaphysical world.

Zodiac(s): Aquarius, Capricorn, Pisces, Virgo 

Chakra(s): Third Eye, Crown

Calcite

Zodiac(s): Cancer

Chakra(s): Depends on the color

Calcite is a great cleanser and amplifier of energy. It assists in the understanding of spiritual messages and divine guidance. It also helps with remembering past lives and wisdom. Calcite comes in many different colors and each color has a different main purpose, but all calcites calm the mind and stimulate focused energy. Calcite will also help clear negative energies around the owner.