The color mechanism of pink spinel from Kuh-i-Lal in the Pamir Mountains of Tajikistan was studied using photoluminescence, mid-infrared, and ultraviolet/visible spectroscopy. This included studying ...

Miners collect spinels from gravel at the end of a long day at Man Sin. Photo by Vincent Pardieu, © GIA. In the spring of 2001, I was studying gemology in Yangon ...

Spinel vs Sybian — a look at how new tech stacks up against one of the strongest sex machines ever built. The Sybian has a long reputation for raw, mechanical power, while Lovense Spinel brings in a ...

Lovense’s Spinel is a compact thrusting dildo machine made for people who want real motion and power without dragging out a full-size setup. It thrusts, vibrates, and warms up, all in one surprisingly ...