Tanzanite Crystals #2 weigh approximately .5 to 1.0 grams. These look gray to me, but Siri described them as gray/green. They have delightful light in them. Please let me pick one for you. These are $.50 USD each.
(Healing Crystal, Ascension Crystal)
Hardness: 6.0 - 7.0
Origin: Tanzania, Africa
Tanzanite is Blue Zoisite which actually comes in several colors. It comes in clear/white, pale yellow shading to brown, grey/blue, brown/blue, blue, or purple/blue. Thulite is the pink form of Zoisite. Tanzanite is usually blue with just a touch of purple, but it can also be yellow. This crystal works on the Throat Chakra, Third Eye Chakra, and the Crown Chakra. Tanzanite combines the Throat and Third Eye Chakras. This crystal helps to develop your psychic abilities, and allows you to properly translate your psychic visions verbally. Tanzanite brings protection and safety for you while you are using it. This crystal facilitates your ability to bring your will, your wish, and your intent into direct contact with manifestation. Tanzanite helps to assure that there will be no misunderstanding of what your intention is. Tanzanite is a Crystal of Magic, because of the magical energy of Zoisite in all three of its forms.
From Siri - Tanzanite is crystal clarity and sparkling happy!!!