Quartz Crystal stone is believed to increase spiritual wisdom and insight, and promote clarity of thought. It’s also believed to increase one’s intuition and amplify prayers. In addition, Quartz Crystal is known to be good for treating headaches, dizziness and general pain relief, as well as healing emotional wounds. Clear Quartz is known as the "master healer" and will amplify energy and thought, as well as the effect of other crystals.
Chakras - Crown Chakra 
Zodiac - All Birthsigns 
Element – All (Earth/Fire/Air/Water)

Black Network stone of Inner Stability. Harmonizes positive and negative forces. Grounds the emotions. Increases concentration and clarity. Opens the mind to higher thought. Fosters love

Lava stone was used by American Indians when entering battle for its qualities of strength and clarity. It’s believed to provide strength (physical and mental) when facing difficult situations.

Jasper is known as the “supreme nurturer”. It sustains and supports through times of stress, and brings tranquility and wholeness. Jasper provides protection and absorbs negative energy. It balances yin and yang. Jasper clears electromagnetic and environmental pollution, including radiation. It encourages honesty with one's self. Provides courage to assertively tackle problems. Aids quick-thinking and promotes organisational abilities. Jasper stimulates the imagination and transforms ideas into action. Prolongs sexual pleasure. It supports during prolonged illness and re-energises the body.
Zodiac - Leo, Virgo, Scorpio 
Element - Fire

The white howlite stone is believed to help teach patience, and overcome self criticism. It is also a very calming stone used to relieve stress of all kinds. It makes an excellent antidote to insomnia due to an overactive mind.
Zodiac - Gemini 
Element - Air