Ruby (Natural) 2-6mm Graduated Faceted Rondelle - 15-16 Inch focal often with a golden or

often with a golden or brown matrix

These gauges are often used to display dimensional information in science & engineering but is convenient for creative use as well

Most hemimorphite is found in the rocks above and surrounding zinc deposits

The most precious Fire Opal has flashes of iridescence and is known as Precious Fire Opal or “Firmament Stone

A cryptocrystalline Chalcedony

Ruby (Natural) 2-6mm Graduated Faceted Rondelle - 15-16 Inch focal often with a golden orRuby is a precious gemstone known for its deep red color. It is a variety of the mineral corundum, the second hardest mineral next to diamond . The presence of chromium is what gives a ruby its red color. Trace amounts of iron can also affect the hue, giving some rubies a slightly brownish or purplish tint. Ruby has long been considered one of the most beautiful and valuable gemstones on the planet. At times in ancient history, Ruby was valued more