The hypothalamus produces thyrotropin-releasing hormone (TRH), which stimulates the pituitary gland to release thyroid-stimulating hormone (TSH).
Water Opal is a colourless, clear opal with a play of colour. It is rare and valuable in the Realms, where it is used in scrying devices.ater Opals are valuable gems in the game which may be found. This item appears in Baldur's Gate (game) , Baldur's Gate: Enhanced Edition, Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition.
The word Opal comes from the Latin word opalus, which means precious stone. Opal is a form of noncrystalline quartz which is created from circulating, silica-bearing waters.When the silica solidifies it creates the gemstone Opal which contains approximately 6 to 10 percent water.imulants are man-made stones which are similar to Opal but made from a different material. Fire Opal is minded in Mexico and Honduras, and several varieties of Precious Opal are found in India, New Zealand and the deserts of the western US.