Aragonite, a dimorphous form of calcium carbonate, which crystallises in the orthorhombic system, is very often twinned in its growth. It occurs as a deposit from hot springs and in association with beds of gypsum. The shells of certain molluscs are made of aragonite and many fossil shells now composed of calcite were probably formed…
Lavender Quartz: A variety of Rose Quartz. In addition to the qualities of rose quartz, this mineral has also been used to stimulate the third-eye, to promote clairaudience, and clairvoyance, and to further communication on the physical plane. Lavender brings serenity, well being, peace and connection with the universe.
Gypsum is a hydrous calcium sulphate, when well crystallised producing excellent transparent monoclinic crystals, which are often twinned in swallow-tail forms. Such crystals of gypsum are called selenite, for the crystals tend to show moon-like iridescence from the cleavage surfaces. It is usually formed by the evaporation of an enclosed sea basin, or may be…