Gemstone value of the stone. Some treatments are used widely because the resulting gem is stable, while others are not accepted most commonly because the gem color is unstable and may revert to the original tone. Heat can improve gemstone color or clarity. The heating process has been well known to gem miners and cutters for centuries, and in many stone types heating is a common practice. Most citrine is made by heating amethyst, and partial heating with a strong gradient results in “ametrine” – a stone partly amethyst and partly citrine. Aquamarine is often heated to remove yellow tones, or
Bishop Daniel S. Tuttle House Bishop Daniel S. Tuttle House Bishop Daniel S. Tuttle House is a nonresidential building adjacent to St. Michael's Episcopal Cathedral in Boise, Idaho. The building was designed by local architects Wayland & Fennell and constructed in 1907 under the direction of Bishop Funsten of the Episcopal Diocese of Idaho, and the building commemorates the work of Daniel S. Tuttle, first bishop of Idaho. Five years after construction of St. Michael's Cathedral (1902), the congregation and its leadership recognized a need for space devoted to receptions, recitals, classrooms, library, gymnasium, and offices. And from its conception, the new building was also