Variant of Labradorite, taken only in Finland: spectral light. (Spectolite) The deep blues are like a beautiful sound that touches the soul as if it had hidden wisdom of the universe ... It shows a profound cobalt blue flash. Diameter: about 8 mm Metallic material: K14GF It is firmly adhered to the foundation with a strong adhesive dedicated to stone and metal. ◇ ◆ ◇ ◆ ◇ ◆ Sae + Sumi Koru spectral lights are all located at the Juramar mine site in Finland I use what I purchased. Only those collected in Finland formally "Spectral light", what was collected in other production areas is a beautiful Labradorite Even if there is, it is not a spectral light. Like a flying stone, deep color with wisdom. It is one of the attractions of this gem that let's see how colors appear depending on the angle of light hit. ◇ ◆ ◇ ◆ K14GF ◆ ◇ ◆ ◇ K14GF (Gold Filled) is a material crimped gold on silver, brass, etc. The thing that plating (thin) becomes, and the standard that gold of more than 1/20 of the total weight is stretched It is stipulated. Because it is made of a much thicker layer than gold plating, even if it is used for a long time There is little to come off. It is a popular material in America as a replacement for soaring gold (18 gold, 14 gold etc). It has long been called gold filing in Japan. It is a thing like gold plating, color and texture with luxury feeling, and also engraved, and unlike accessories, it is a material closer to jewelry. -----------------About handling----------------- Using a cleaner for silver, polishing with a seam, ultrasonic washing etc Please do not use. It is a good method to polish with a dry cloth such as cotton gently. ☆ If you would like gift wrapping, letter pack plus, Yamato Takkyubin, Yu-pack Please choose one (for thickness limit of the box) ☆ ☆ If you are concerned about accidents during delivery, delivery with guarantee Delivery method: Yamato Takkyubin or Please select a Yu-Pack. Copy right 2015 - Sae + Sumi Koru all right reserved. All works are protected by copyright law.