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Tuesday, October 13, 2009

Loving Labradorite



Labradorite is truly a fascinatingly beautiful mineral. Its a mineral whose charm is not fully noticed and may be overlooked if not viewed from the proper position. Generally a dull, dark looking mineral with no special virtue until the colorful shiller is observed glowing on the surface. Labradorite can produce a colorful play of light across cleavage planes and in sliced sections called labradorescence. The usually intense colors range from the typical blues and violets through greens, yellows and oranges. Some rare specimens display all these colors simultaneously.


The color display is from lamellar intergrowths inside the crystal. These intergrowths result from compatible chemistries at high temperatures becoming incompatible at lower temperatures and thus a separating and layering of these two phases. The resulting color effect is caused by a ray of light entering a layer and being refracted back and forth by deeper layers. This refracted ray is slowed by the extra travel through the layers and mixes with other rays to produce a light ray coming out that has a different wavelength than when it went in. The wavelength could correspond to the wavelength of a particular color, such as blue. The effect depends on the thickness and orientation of the layers. If the layers are too thick or too thin no color shiller is seen. The labradorescence is truly a one of a kind mineralogical experience and must be observed in person in order to truly appreciate its beauty.



Available at GotRocks4Sale.com

Sunday, October 4, 2009

You might want to check this out - Amazing Color!

The BeadforLife Store
From their Store Website:
"You are most welcome to browse through our jewelry store! All of our BeadforLife jewelry is made from recycled paper beads which are rolled from long strips of colorful magazine pages, calendars, pamphlets, and cereal boxes. The beads are glued and lightly varnished with an eco-friendly and odorless acrylic based sealant. The jewelry is assembled using colorful glass seed beads, elastic for the bracelets and sliver plated clasps for the necklaces. You will notice that all of our items are branded with a silver plated BeadforLife tag."





"Because our jewelry is hand made from recycled paper, each bead is completely unique. Variations in the size and color of our jewelry items reflect the uniqueness of the woman who made them."

To shop go to: http://www.beadforlifestore.org/servlet/StoreFront