In the French translation of 1644, there is discussion in Chapters 20 to 22 of the decolourising by heat of sapphire, topaz, amethyst and the like, to produce diamond imitations the dyeing of stones, mostly with metal compounds, an extended discussion of metal foils and an obscure description on how to harden gemstones. In the 17th Century, we have the Gemmarum et Lapidum Historia of 1609 by Boetius de Boot, a physician of Bruges. It discusses gem treatments and simulants and also how to identify those stones that are "not true" and the importance of experience and knowledge in this subject. In 1502 "The Mirror of Stones" was published, a fascinating book by Camillus Leonardus, a physician and astrologer of Pesaro, Italy. in Greek-speaking Egypt contains 73 recipes which deal with the falsification of pearls and gemstones representing the oldest extended recipe collection dealing with gems. The "Stockholm Papyrus" made about 400 A.D. Pliny discusses many gemstone-enhancement techniques including foils, oiling and dying that are still in use today, almost 2,000 years later.
Plinius Secundus (First Century A.D) is the earliest written source on gem treatments.
Heated carnelian was found in Tutankhamun's tomb-dating to at least 1300 B.C.C. What about the origins of gem treatments? Treatments include: bleaching, coating, dying, fracture filling, heating, impregnation, high pressure, high temperature, irradiation, laser drilling and lattice diffusion. Today, gemmologists are confronted to a broad spectrum of treatments ranging from the simple to the highly sophisticated as well as the easily detected to the highly elusive. Many gemstones can be treated to alter their colour and clarity. Gem Glass has a strong aesthetic character and thanks to the special processing, suitable for multiple uses, applications and interpretations.įor more information: visit the SICIS GEM online website.įor installation information, click here.Guy Lalous ACAM EG, summarises the state of making glass simulants of gems in the 16th Century, as well as exploring the historical information we have available on the enhancement of natural gem materials. Opalescent, has translucent effect and will reflect the colors based on the texture. Solid is a version in which the patterning and colors are saturated on a pure white base.Ĭhromo, mirror and chrome plated effect reflecting the brilliant colors.
All options are available in different finishes and backgrounds. Thirteen unique looks, with swirling veins or slight ripples, transparent and opaque. Gem Glass, is a combination of special techniques and processes which creates glass sheets that capture the timeless and limitless beauty of precious stones, lava rock, as well as dream landscapes.
Gem glass series#
The series can be backlit for unique applications in feature areas.Īvailable in standard slab sizes: 47-1/4″ x 110-1/4″ or 53-1/8″ x 114-1/4″ in 1/4″ thickness (or 3/8″ by special request) Available in thirteen new patterns, with veins and ripples, offering transparent, semi-transparent and opaque variations, the slabs come in various finishes and colors. Gem offers slabs that celebrate the look of precious stones, lava rocks, and lunar landscapes. A product made with fabric and polymeric film that is used as cladding for a variety of surfaces. Gem Glass, a collection of large-format glass tiles and slabs by SICIS.
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