Showing posts with label feldspar. Show all posts
Showing posts with label feldspar. Show all posts

Thursday, August 25, 2011

Rock Review: Moonstone



New Bandy Bracelet in Moonstone by Layne Designs. It doubles as a pendant too!

Moonstone, today’s featured gem, is so named because it is one of the only gems that looks better in moonlight than sunlight.
Geology Buzz
This gem’s most memorable quality is a rainbow sheen that it casts in the opaque milky gray background due to reflections that occur within the various layers of Feldspar that comprise the gem. Moonstone is an amazing combination of two types of Feldspar, Orthoclase and Albite. When these two mineral heat and then cool, they settle in alternating layers that cause light to pass through the stone in a range of refractions, producing the lovely rainbow colors it’s known for. This reflective property is called adularescence.
Moonstones are ideal as cabochons and require a great deal of skill to cut correctly so that the depth and axes of a stone can reveal it’s fabulous shimmer, which otherwise would not be apparent to the casual observer. This stone can occur in a variety of tones from grey to brown to clear, but are most highly valued as a transparent gem with a blue hue. It is this classic look that most jewelry and rock lovers bring to mind when they think of the stone. In recent years, more exotic colors have appeared on the market such as orange, green, champagne, red and even black. In all colors, the defining sheen will be present.
Fun Facts
Long ago when neighbors were few and far between and communication among friends was not instant, folks would often meditate on a moonstone for answers to life's perplexing questions. Some believed that the glow of color from within was actually an ancient soul inside of the stone. Meditating over the stone, however, is not without tangible merit. The gentle blue glow of the stone actually relaxes the optic nerve when one stares at it for a few minutes. The relaxation of the optic nerve encourages the body into a meditative state.
Many cultures, including the Romans and the Greeks have associated Moonstone with the moon and lunar Gods, believing the rock to be solidified rays from the moon itself. In the late nineteenth and early twentieth centuries, it was a popular choice for jewelry of the Art Nouveau movement. Moonstone was a favorite gem of the famous French master goldsmith, Rene Lalique, who used it in many of his creations. Recently, moonstone has jumped in popularity due to the trendy Twilight movie franchise. The heroine, Bella Swan, is rarely seen without her lovely and sizeable moonstone ring that she wears on her index finger.

Brand new Moonstone pendant with Blue Topaz accent by Layne Designs!

Thursday, January 6, 2011

Rock Review: Labrodorite












As you may have guessed from my new series of blog posts "Rock Review" – I’m a bit of a nerd! I LOVE to know history and fun details about the materials I work with. It makes creating and designing with these incredible, naturally forming materials even more exciting! So, from time-to-time, I plan to enlighten myself (and hopefully my readers) with a bit of detailed research about ROCKS.
The next ROCK on my RADAR is the Labrodorite. Originally discovered on St. Paul Island in Labrador Canada in 1770, this rock ranges in color from a brilliant blue to grey and can sometimes include a rainbow of colors. It is one of the many stones classified in the feldspar family (nerd alert: feldspar family is defined as: a group of rock-forming minerals which make up as much as 60% of the Earth’s crust, per Wikipedia – and we know they don’t lie!)
Labrodorite is best known for its “shiller effect," or in layman’s terms its iridescent colors reflected at different angles. The scattering of light causes this effect from the thin layers in the stone, formed during the earth’s cooling process. This why the labordorite is so unique – depending on the angle from which it is viewed, a brilliant flash of different colors can be seen!
In addition to its country of origin, GEM QUAILITY labordorite can be found in Madagascar, Finland, Russia and most notably in India. Aside from its enchanting beauty, this stone also comes with an Eskimo legend! According to generations of Eskimo legend, labordorite holds the Northern Lights captive. A powerful Eskimo warrior found the Northern Lights captive in this rock and freed some of them with his spear. Not all of the lights escaped and that is why Labordorite displays an array beautiful colors today.
Another great example of beautiful labrodorite can be seen in these earrings at my ETSY shop:
A little fascinating fact and a little folklore legend makes for a great ROCK to REVIEW. Till next time!