Chemical formula: Si02 (Silica dioxide)
Crystal system: Trigonal
Hardness: 6.5- 7
Lustre: Vitreous 
Colour: Various colours that range from transparent to opaque which have irregular, sometimes circular bands of colour.
Sources: Most commonly found in metamorphic rock. Sources: Russia, Brazil, Egypt, Germany, India, Italy, Madagascar, Mexico, Uruguay, U.S.A.

Chemical formula: Si02 (Silica dioxide)
Crystal system: Trigonal
Hardness: 6.5-7
Lustre: Vitreous
Colour: Pale blue with white and/or darker lines
Sources: Same as agate
Potential Healing benefits: Blue lace agate has the potential to help clear the throat chakra and aid communication. Also good for the thyroid gland. Helps to cool down fevers.