LED Desk Lamp 8W Eye Caring Adjustable Gooseneck Desk Light Office - Stepless Dimmable Brightness - 3 Touch Control Color Modes - Flexible Arm Table Reading Lamp - Dimmer - Memory - Black Cherry Wood Available again begining mid June 2014. This beautiful Selenite lamp is made from beautiful clear Selenite, It uses a 15 Watt bulb, which lights it up beautifully. Dimensions: Sizes vary between 15"-17" High x 5"-6" Wide Location: Sahara desert, Morocco Type: Representative item. Selenite is a varietal name of Gypsum, which is one of the more common minerals in sedimentary environments. It's primarily composed of Hydrated CalciumSulphate , it forms when limestone is attacked by sulphuric acid. It is a major rock forming mineral that produces massive beds, usually from precipitation out of highly saline waters. Gypsum has several variety names that are widely used in the mineral trade. "Selenite" is the colorless and transparent variety that shows a pearl like luster and has been described as having a moon like glow. Another variety is a compact fibrous aggregate called "satin spar" This variety has a very satin like look that gives a play of light up and down the fibrous crystals.