Found inside – Page 68A mineral is said to show a change of color when on turning it the colors change slowly , being different for varying positions . This is observed in labradorite . A mineral ... A remarkable example is the star sapphire . Phosphorescence . Several ... Found inside – Page 543Comparative tables of the colors and distinguishing characters of the ... white six - rayed star on the body or ground color of the gem , as in the sapphire ... Get the information you need--fast! This all-embracing guide offers a thorough view of key knowledge and detailed insight. This Guide introduces what you want to know about Sapphire. Found inside – Page 20Diamonds and other prized gems continued gom ( family ) usual colors most prized color transparency hardness price ... ( corundum ) all colors except red deep blue September transparent ; star sapphire is semitransparent moderate to very ... Found insideNotable Varieties of This Crystal: Padparadscha, Star Sapphire, Color Change Sapphire, Fancy Color Sapphire, and Blue Sapphire. Found inside – Page 115Amethyst , Star Sapphire against Jet Black and Star White sets a more dynamic mood ... you do have creative license to change colors throughout the rooms to ... Found inside – Page 65A star sapphire is a type of sapphire that exhibits a star-like phenomenon known as ... A rare variety of natural sapphire, known as color-change sapphire, ... Found inside – Page 23The gemstones of these minerals are called star ruby , star sapphire , and star quartz . Change of Colors In cymophane and some other minerals there is In contrast to the quick change in color of but a single set of inclusions , which gives rise ... Found inside – Page 543... hues of color , which change as the gem is viewed from different positions ; in others there may be a reflection having the appearance of a white six - rayed star on the body or ground color of the gem , as in the sapphire ; or the reflection may ... Found inside – Page 59Phenomenal gem = one which shows a play or change of color by artificial light , or shows a movable line of light . Piedmontite = brownish ... Star sapphire = grayish - blue sapphire ( corundum ) showing a star of light . Star topaz = asteriated ... Found inside – Page 198Color Photographs We wish to thank the following persons and companies for the ... Page 3: Star sapphire and moonstones from International Colored Gemstone ... Detailed and comprehensive, this book is essential for anyone interested in the study of gems and precious stones. Found inside – Page 120Fancy Sapphires get their unique colors from the iron , chromium , titanium and other trace metals present within the Corundum ... Chanthaburi Black Star Sapphire Color Change Sapphire While Color Change Sapphires come from a variety of ... Found inside – Page 81Alexandrite , a variety of chrysoberyl , is a rare and unusual stone with a color change of green in daylight to red under ... Asteriated or star sapphire , which may occur in any color , offers an unusual optical effect and is classed as a ... Found inside – Page 77... can withstand l650°F (899°C) lor at least one hour with no color change. ... Quartz Blad: Onyx I Quit: Bladi Star Sapphire Corundum l650'F 099°C)/ZH X ... Found inside – Page 113This has simultaneously supplied an understanding of the techniques which are used to change these colors . ... heat treatment changes can be reversed ( including blue aquamarine reversed by irradiation , blue sapphire and star sapphire ... Found inside – Page 26-2Uranium Star Corp. of Canada engaged in stream sediment sampling at lanapera . ... color - change garnet were produced at Behara in southern Madagascar . Found inside – Page 322Starlight , star bright Sapphire offers several phenomenal varieties as well as a wide spectrum of colors . Best known is the star sapphire . Linde's heavy ... Possible phenomena : Asterism ( star effect ) , change of color . Chatoyancy ( cat's eye ... Found inside – Page 747of December , 1600 , after the birth A pale sapphire set in gold and of Christ Jesus ... will procure any desire . pletely its splendid color , and that it ... Found inside – Page 80Star Sapphire with a lavender seedling of Bruce Glines produced quite a few tall lavenders with good color . ... In fact outcrossing colorwise , is the only way we are going to get much change overall within many of the colors , as most varieties ... Found inside – Page 20colorless to yellowish; colorless, red all other colors rare How much income ... star ruby is semitrans- parent transparent; star sapphire is semitrans- ... Found inside – Page 28Figure 1.11 Causes of color are classified in 14 categories of five broad ... pure colors appear inside the stone; the colors change as the eye or the ... Found inside – Page 63Most blue sapphires show inclusions or uneven color distribution. ... type of rare and extremely valuable blue sapphire is the color- change sapphire, ... Found inside – Page 102Sapphire Color : Blue in various tones , colorless , pink , orange , yellow ... cloudy sapphires , nondistinct in color , can change to a bright blue ... Found inside – Page 58The addition of vanadium produces “ alexandrite colored corundum ” which gives a color change somewhat similar to that of alexandrite ( see below under alexandrite ) . Star ruby and star sapphires are made by the addition of a small amount ... Found inside – Page 20Little remains of the camp today . sapphires occurred in a broad color range and George Frederick Kunz considered them to be among the most unusual he had ever seen . Many pale or colorless stones exhibited the asterism of the star sapphire or a silky chatoyancy , leading Kunz to ... Creek sapphires as : . . . remarkable for their small colored spots which , when properly cut , change the entire stone to ... Found inside – Page 55The angles intersect and the growth line of the synthetic star sapphire is ... the transparency and reflection effect are good, no need to change color, ... Found inside – Page 543... hues of color , which change as the gem is viewed from different positions ; in others there may be a reflection having the appearance of a white six - rayed star on the body or ground color of the gem , as in the sapphire ; or the reflection may ... Found inside – Page 4The change of ticularly those of deeper colors of red – color in very fine stones of alexandrite — | are often more highly ... Star sapphire is called the " stone of destiny , " and the three bands that form the star are said to represent faith , hope ... Found inside – Page 117Star Sapphire Diamonds & Sapphires Rubies & Diamonds Sapphires & Diamonds Sapphires & Diamonds CK WATCHE Turquoise & Cult . Pearls Ty water . We Jlay at reed y & New Pro Pork International Silver will become ' Insilco ' International Silver Co. is changing its name to ... fourteen karat gold featuring the rich brilliance of precious and semiprecious stones in a wide variety of color combinations . Found insideHis expression didn't change. ... tried to act like he didn't know what she was talking about, but his body betrayed him and his cheeks flushed with color. Found inside – Page 109Colors: colorless (white sapphire), red (ruby), blue (sapphire), ... 475 nm and a broad band at 585 nm, which caused the color change of stone. Found inside – Page 335Vanadium produces the color - changing red - green alexandrite - colored sapphire as described in detail in Chapter 5. The additional presence of titanium can lead to asterism as in star sapphire and star ruby , involving scattering , as ... Found inside – Page 43520,000 RUBY 1 10,000 EMERALD DIAMOND 5,000 RUBY 2 STAR 3,000 2,000 ALEXANDRITE SAPPHIRE 1 . 1,000 SAPPHIRE 2 500 OPAL ... Alexandrite - medium dark , intense colors , with sharp color change . Sapphire 1 - medium dark ... Found inside – Page 13Diamond is highly prized because of its fire and brilliancy , ruby and emerald because of the intensity and beauty of their colors , and star sapphire and ... Found inside – Page 28About 3% V gives an alexandrite-like color change (Sect. ... V.2 Star Ruby and Star Sapphires Some natural corundum shows a star effect (asterism) when ... Found inside – Page 19011 4 11 6 Su 1964 182 Emeralds from Brazil Not colored by chromium ; name based on color appearance 11 8 W 1964-1965 244 ... appearance 11 9 Sp 1965 270 Color - change sapphire Similar to alexandrite in terms of color appearance change 11 10 Su 1965 310 ... treated blue star sapphire Description of color and asterism produced by diffusion 27 1 Sp 1991 44-45 Fancy - color diamonds Note on ... Found inside – Page 158The star sapphire , which is milky or grayish blue , is the best guard ... Sapphire will sometimes change color if the person wearing the stone has an ... Found inside – Page 95If you watch, different parts of the gem will change color earlier than other parts, ... 10.2 Star Rubies and Sapphires If you buy a star ruby or sapphire, ... Found inside – Page 201... 135 Australian sapphire 150 , 151 , 193 Baguettes 26 Beads 24 , 28 , 31 Black star diopside 143 Black star sapphire 143 ... 181 Color bands 64 , 77 Color , cause of 188 Color purity 36 , 39 , 149 , 150 Color zoning 64 , 66 , 69 Color - change ... Found inside – Page 543... hues of color , which change as the gem is viewed from different positions ; in others there may be a reflection having the appearance of a white six - rayed star on the body or ground color of the gem , as in the sapphire ; or the reflection may ... Found inside – Page 53INTERMEDIATE ALEXANDRITES , very small rare faceted gems with good color - change , brilliant cut , $ 4.50 each . ... STAR SAPPHIRE , Blue ( this is a royal blue ) , 23.64 carats , 151 / 2x14 mm . , Oval , $ 300.00 carat , $ 7,092.00 . SPINEL ... Found inside – Page 67STAR CORUNDUM ( 6 rays ) Change - of - color COLOR - CHANGE CORUNDUM COLOR - CHANGE SYN . CORUNDUM Alexandrite chrysoberyl Girasol ( opalescence ) GEUDA - TYPE CORUNDUM Common opal ( opal with no play - of ... Found inside – Page 14For this reason it is difficult to identify a stone simply by its color . ... with star sapphire and star ruby , it gives the stone a star - like radiance . Found inside – Page 163BLUE STAR SAPPHIRE The star sapphire incorporates more than one thing . The blue creates the balance ; the wisdom ; the stabilization . ... The star sapphire will totally change their vibration . STAR SAPPHIRE : AIR sign ( light ) EARTH sign ... Presents nine healing systems--plants, elements, trees, stones, fish, birds, animals, reptiles, and metals--used by the twelfth-century physician HERBAL MEDICINE / HISTORY OF MEDICINE "Saint, mystic, healer, visionary, fighter, Hildegard ... - medium dark, intense colors, with sharp color change star of light broad range! 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