A magnesite turquoise flat 2 pcs cabochons and oval shape. The weight is 69.80 cts and the dimension of bigger one is 23×32×7 . The Physical Healing Powers of Turquoise. As a healing stone, Turquoise is among the crystal healing master stones. According to followers of the New Age, the healing powers of Turquoise can benefit the whole body, with special strengths in healing ailments of the immune, respiratory, waste and skeletal systems. Magnesite is a mineral, magnesium carbonate, that has the same crystal structure as calcite. It usually forms when magnesium-rich rocks, such as serpentine or dolomite, are exposed to carbon dioxide-rich water. Magnesite has the same hardness and texture as turquoise and marble. It has a dull luster to it, sometimes looking like unglazed porcelain.