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Meaning of crystals by colour. Blue colour
Blue is the colour of knowledge, wisdom and belongs to the truth-seekers. It strengthens a the faith in an idea. This colour promotes honesty, generosity and openness to the opinions of others while maintaining neutrality and one’s own values. Helps to develop the intellect and overcome fears in relations with others. Protects and frees you from external influences and dependence on others’ views about you. Encourages openness to wider knowledge.
As an example, like in the pictures below, the Sodalite crystal works out to control and calm down our emotions. This is the only way we can hear the voice of our mind when our emotions are calm. It is actually quite difficult for an emotional person to think coherently, logically and to stay concentrated. Sodalite helps us to achieve this.
Lazurite – imparts wisdom, broadens awareness, activates the intellect, and promotes logical thinking. Encourages self-expression through communication and mental abilities. Assists to concentrate when learning, and better retain knowledge, avoid overwork.
Kyanite – known as the stone of activity, sobriety, wisdom, progress and advancement. It dispels anger, supports to find balance and harmony, balances the yin and yang energies, and aids the growth and development of the soul.