Green Tourmaline in Quartz - Old Stock Here is a nice example

Here is a nice example of an aesthetically pleasing specimen

This species of ammonites is characterized by its ribbed shells and white exterior

but occasionally contains yellows and browns

" Occasionally these colors showcase parallel lines running down the length of the mineral

Location: Madagascar

Green Tourmaline in Quartz - Old Stock Here is a nice exampleThere are many, many collectors and mineral enthusiasts who focus solely on the world of tourmaline. With so many different species and locations from all around the world, it is almost a requirement to have some specimen of tourmaline in your collection. Why not start off with a beautiful dark green from Brazil? Size: 3. 7 x 2. 2 x 0. 8 in. Weight: 5. 7 oz Chemical Formula: XY3Z6B3Si6(O,OH)30(OH,F) Location: Brazil Tourmaline is a boron silicate