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David Cowley's Articles in Gems and Crystals

  • Treasure Hunting For Herkimer Diamonds
    Herkimer diamonds are double terminated quartz crystals that are found in Herkimer County, New York, hence the name. These crystals have usually have a shape that is very similar to diamonds with 18 facets and two terminators or points at the end. These beautiful gemstones were formed close to five hundred million years ago.
  • Treasure Hunting For Sapphires
    Sapphires have captivated people for thousands of years. They seem so encapsulate wisdom somehow, or perhaps our own potential. Somewhere in a pile of dirty gravel, there is a shining gem just waiting to be uncovered. Sapphires come in a wide variety of colors, including blue, pink, orange, brown, clear, yellow and purple. Why no red sapphires?
  • Treasure Hunting For Aquamarine
    Not every buried treasure has been discovered. There still is a remarkable quantity of quality treasures still in Mother Earth, including the semi-precious stones to be found at Gem Mountain in North Carolina. One of the biggest draws to Gem Mountain is aquamarine treasure hunting. You find it - you keep it. It's as fun and as simple as that.
  • Treasure Hunting for Opals
    Opals have been considered a magical precious stone for thousands of years. It is said to help the wearer's psychic powers and to have better and more vivid dreams. Modern Witches and Pagans especially look for black opals, said to enhance any magic spell. But not are opals rich in myth and magic, they are also really nice to look at.
  • Treasure Hunting For Fire Agates
    Fire Agates is a layered stone that is formed then water that is saturated with colloida silica and iron oxide enters a cavity in a rock and the mineral in the water starts do form new rock. When cutting, the stones layers are ground or polished off following the natural contours of the stone until the desired colored is all that is left. Grind off one to many layers and the stone is ruined.
  • Treasure Hunting For Emeralds
    As with most gemstones the emerald can be created as the result of volcanic activity, where the extreme pressure and heat creates the gemstones. Another process knows as hydrothermal circulation, which in the most general sense is the circulation of hot water containing dissolved minerals passing through pockets in the underlying bedrock, evaporate caused the stones to cool as large crystals.
  • Treasure Hunting For Turquoise
    Turquoise is possibly the most valuable, non-transparent mineral used in jewelry. It has been mined since at least 6000 BC by Egyptians. Like other opaque such as coral, turquoise is commonly sold by the size in millimeters rather than by weight.
  • Treasure Hunting For Jade
    Do you have a hankering to find some Jade but you do not want to travel to China or South America for it? Well you are in luck; you can just pick it off the ground from Jade Cove which is located about 65 miles south of Monterrey California.
  • Treasure Hunting For Tourmaline
    According to Egyptian legend tourmaline gets it color when it passes over a rainbow on its journey up from the center of the earth and that is why it is often referred as the gemstone of the rainbow. Multicolored and bi-colored tourmaline are the norm and very rarely found in the clear or colorless form. Watermelon colored gemstones are green at one end and pink at the other, hence the name.
  • Treasure Hunting For Star Garnets
    India and Idaho are the only two places in the world that star garnets are found. They range in size from a grain of sand to golf ball in size. Star Garnets display a reflection of the light with a four or six ray star, which is caused by an inclusion of rutile in the gemstone. Idaho is the only known place where six ray star garnets are found.
  • Treasure Hunting for Amethysts
    The Amethyst gemstones range in color from pale lilac to deep purple. Gemstones with the deepest colors are the most valuable and some of these fine gemstones are featured in the British Crown Jewels. Amethyst is a transparent quartz crystal and is used in many pieces of striking jewelry today.
  • Treasure Hunting For Benitoite
    Benitoite was named after the county where it was first found, San Benito County, in 1907 and to this day San Benito County is the only place in the world that you can find this gemstone, making it among the rarest gems on the planet. Benitoite became California's official state gemstone in 1985.
  • Treasure Hunting For Sunstones
    Sunstones are formed in molten lava and found in volcanic vents that have erupted from volcanoes. When the lava rock is weathered away or broken up the sunstone crystals are exposed. Sunstone is a transparent, yellowish labradorite found as crystals in these volcanic rocks.



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