The large scope of potential global public health threats is recognized in the revised International Health Regulations (IHR [2005])3 with its all-hazards approach to assessing serious public health threats.
How much is it? On average, a high-quality peridot stone can cost anywhere from $50 to $200+ per carat. Larger peridots that are exported from foreign countries can cost as much as $500+ per carat. Generally, stones mined from Burma, Pakistan and Arizona can command the highest prices.
Image taken from. Mineral Galleries. Peridot (pronounced pear-a-doe) is the gem variety of the mineral olivine, and also called chrysolite. It is a magnesium iron silicate, (Mg, Fe) 2 SiO 4, with a hardness of 6.5-7, and specific gravity of 3.28-3.48.Cleavage is indistinct and the fracture, conchoidal.t was probably called emerald in ancient accounts and Romans termed it evening emerald.. Peridot was one of the twelve stones in the the high priest's breastplate in the Biblical book of Exodus. This gem, in a powdered form, was to cure asthma and believed to lessen the effects of enchantment. Mineral Galleries.