Peridot Is A Mineral Of The Olivine Family. It Has A Color That Is Entirely Its Own, But It Is Many A Times Confused With Emerald Stone. The Green Color Of A Peridot Ranges From Pale Green To Bottle Green And Dark Green. It Is The Birthstone Of August And A Very Auspicious Stone For Those Couples Who Are Celebrating Their 16Th Anniversary. It Is A Very Beautiful Gemstone And So It Makes Very Good Jewelry. It Is A Stone Of Lightness And Beauty And It Has Many Benefits Attached To It.Large Opal Stones In Round And Oval Shapes Will Reveal Warm Red Tones. Small Opal Stones Will Be Cool, Emitting Predominantly Blue And Green Tones. Stones That Are Intensely Colored Are A Clue That The Silica Structure Within The Stone Is Uniform.