Solid Detroit Agate / Fordite Cabochon TEQUILA SUNRISE (suzybones) leftover enamel from painting both after the painting of vehicles usually from Detroit found in the ground and dug up and polished. Not a rock or mineral.
Elbaite, on Quartz, nicknamed "Rabbit Ears". Amazing natural crystal formation ~ Houston Museum of Natural Science, Cullen Hall of Gems and Minerals (photo credit: Houston Convention and Visitor's Bureau)
The name Tourmaline comes from the Sinhalese (Sri Lanka) word tura mali which translates as the stone of mixed colors. These stones are 7 to on the Mohs’ scale of hardness. Tourmaline is available in a wide variety of colors