Bucherer_ColoredGemstones

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PERIDOTIn 1749 extraterrestrial peridots fell to earth in the Krasnojarsk meteorite. For the time,it was a new and curious phenomenon. However, these peridots were as little suitedfor use in jewelry as the millions of tiny crystals that are found in the lava flow of theMauna Loa volcano.Indeed, peridots owe their existence to volcanic activity. The most valuable examplesare found today in Myanmar and Pakistan. Its fresh, grass-green color has made it avery popular gemstone. Extremely rare varieties include the cat’s eye peridot and thefour-rayed star peridot.MINERAL GROUP COMPOSITION COLOR OCCURRENCEOlivineHardness: 6.5 – 7.0Magnesium iron silicate. Thetrace element that gives thestone its color is ironYellow-green, olivegreen, brownishMyanmar, Pakistan,USA (Arizona,Hawaii), China27
GARNETGarnet is the name given to the members of a complex mineral group that appears inmany different colors and has as many different names. The best known of them allis the fire-colored garnet. We shall restrict ourselves here to the red and green speciesof garnet.PYROPE, ALMANDINE AND RHODOLITEThe pyrope has a fiery red glow and because of its brownish nuances was a gemstonemuch in demand in the 18th and 19th centuries. Almandine is dark red in color witha delicate tinge of violet. It takes its name from Alabanda, an ancient city in Asia Minorfamed for cutting gemstones. The rhodolite is a mixed crystal consisting of almandineand pyrope, and is velvety red in color with delicate raspberry-red undertones.FIERY SPESSARTITE GARNETThe first mandarin garnets were found in 1991 in northeastern Namibia, one of the fewuntouched regions of the earth. The deep red orange of the rare spessartite garnetvariety is reminiscent of the warm glow in the evening sky when the sun has alreadydisappeared beneath the horizon.GREEN VARIETIESNot without reason did ancient legends claim that a garnet was a difficult stone to conceal.Its sparkling light can be seen even through clothing. The reason for its extraordinarybrilliance lies in the high refractive index of garnets. This is also the propertythat makes the green varieties sparkle. In its natural state, the grossular – a calciumaluminumspecies of the garnet group – has fine yellow, green, brown or earthy-coloredtones. The tsavolite, one of the most beautiful of the grossulars, is a young gemstonewith a very old geological history. It originates from the bushland of east Africa on theborder between Kenya and Tanzania. The mineral was formed tens of millions of yearsago. It was first discovered in 1967 and given the name tsavolite in honor of the TsaveNational Park and the Tsavo River running through an area rich in wildlife. The stonecomes in a spectrum of colors ranging from delicate pale green and blue-green to abold dark green.28
Page 1 and 2: COLORED GEMSTONESA triumph of natur
Page 3: Highly treasured masterpiecesThe lu
Page 7 and 8: A DEFINITION OF GEMSTONESGemstones
Page 9 and 10: Cage by Bucherer
Page 11 and 12: WEIGHTWeight is the one quantifiabl
Page 13 and 14: Natural spinel from Vietnamwith par
Page 15 and 16: YOUR GUARANTEE FROM BUCHERERIn orde
Page 17 and 18: RUBYThe ruby (from the Latin for re
Page 20 and 21: EMERALDThe name emerald is Persian
Page 22 and 23: BERYLThe sparkle of emeralds is an
Page 24 and 25: 2 MONTANA, USAUSA 8 | 9 | 11 | 1511
Page 26 and 27: THE MUCH-COVETED PARAIBA TOURMALINE
Page 30 and 31: DIAMOND-LIKE DEMANTOIDThe star amon
Page 32 and 33: AMETHYSTMagical properties are ascr
Page 34 and 35: CHRYSOBERYLThe sparkling honey-yell
Page 36 and 37: TOPAZThe topaz radiates all the col
Page 38 and 39: SPINELIn the Mogok Valley in Myanma
Page 42: CRAFTSMANSHIP AT THE HIGHEST LEVELW
Page 45 and 46: The declaration provides a dependab

Bucherer_ColoredGemstones

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