News — Glass Ceramic

November Birthstone and Their Gemstones: Citrine and Topaz November is associated with two beautiful gemstones: Citrine and Topaz. The name Citrine is derived from the French word citron, meaning lemon, because of its characteristic yellow, yellow-orange, and brownish-orange hues. Light yellow Citrine is often referred to as “Lemon Quartz.” Unlike Citrine, Topaz exhibits a much wider range of colors, including colorless, blue, pink, violet, brown, yellow, golden, orange, and more. A variety known as "Imperial Topaz" is especially valuable for its reddish-orange to orange-red hues. Additionally, the yellowish gemstone group includes Heliodor ("Golden Beryl"), which ranges from lemon-yellow to golden-yellow....

Rubies are one of the most valuable gemstones in our planet. Together with sapphire they are part of the corundum mineral family. Ruby is the traditional birthstone for July and for the 40th wedding anniversary. The physical properties of rubies are the same as those of all corundums, whether natural or synthetic: Mohs hardness of 9, refractive index of 1.76-1.77, and specific gravity of 3.97-4.05 g/cm³. SIAMITE® ruby reflections are significantly inferior to corundum in all three parameters, with values of 7.5, 1.62-1.63, and 3.0-3.3, respectively. However, other ruby imitations, such as optical or crystal glasses, cubic zirconium, and others,...

SIAMITE® is lead-free and compliant with the strictest regulatory industry norms and laws regarding the restriction or prohibition of certain substances. The production process is virtually waste-free and environmentally friendly - akin to glass production, all low-quality or defective products are recycled as additives to the production charge. Energy for production comes solely from electricity, resulting in no carbon dioxide emissions into the atmosphere. As reserves of natural gems dwindle and their value increases, mining them causes irreparable damage to nature. Consumers are increasingly aware of this and are prioritizing environmentally friendly products. A notable jewelry brand recently switched from...

As follows from the part 5, the SIAMITE® completely replicate the brightness, color, and density of the most widely used gemstones. In connection with this, a common question arises – how to distinguish faceted SIAMITE® stones from natural gemstones? This question is quite relevant, as many buyers of our stones have already turned to gemological laboratories in many countries worldwide and received incorrect conclusions – “glass”, “special glass”, “natural tourmaline”, “topaz” … Gemologists worldwide have a standard set of criteria for identifying gemstones: color, refractive index, density, magnification, absorption spectrum, fluorescence. However, the nature of SIAMITE® glass-ceramic makes classic gemological...

The complete catalog of transparent SIAMITE® gemstone reflections include about 780 different colors and shades (Fig. 4,5,6), along with more than 200 translucent and opaque varieties (Fig.7). They are part of 104 transparent color groups (groups of emeralds, blue topazes, sapphires, rubies, tourmalines...) and approximately 50 translucent and opaque groups (groups of turquoise, moonstones, lapis lazuli, jadeites...). Figure 4. SIAMITE® reflections of the most common natural gemstones. The ability to produce many colors, shades, and saturations is another unique feature of SIAMITE. This allows for the creation of a wide range of imitations of natural gems from different deposits: emeralds...