Found insideAn amethyst geode makes a grand entrance , and a roomful of rocks comes to life . ... but until the discovery at the turn of the century of rich mines in Brazil and adjacent Uruguay , amethysts came from the Ural Mountains , and “ you had to be ... Found inside – Page 20If and when artificially produced amethyst is sold world - wide , the price of true ( occidental ) amethyst may change , however this can only be determined in the future . Commercial amethyst is obtained mainly from Uruguay and Brazil . Found inside – Page 181AMETHYST . - Amethyst crystals from Brazil , Uruguay , and Anvergne were used , being first heated in hydrogen under the same conditions as the zircon . Decolorization began at 300 deg . , and was completed at 400 deg ; in some cases the ... Found insideThe rough stone is found in Brazil, Uruguay, the Urals, and France. AMETHYST. This is the beautiful violetcoloured variety of quartz, and probably the most ... Found inside – Page 1104AGATE CARNELIAN PEBBLES — Uruguay AMAZONITE CHIPS — Brazil AMETHYST — Brazil - Deep color - Heat treat , will turn green AMETHYST — Brazil - Lighter color AQUAMARINE — Brazil BLOODSTONE — India CHRYSOPRASE ... Found inside – Page 273Bahia and Rio Grande do Sul are the two important amethyst - producing states in Brazil ; also in neighboring Uruguay and Bolivia . Found insideAmethyst SiO 2 Hexagonal/trigonal 7 Vitreous White And the third row a ... Southern Brazil and Uruguay have the largest deposits of amethyst in the world. Found inside – Page 17The major sources of Amethyst are from Brazil as geodes within volcanic rocks, Uruguay, South Korea, Russia, United States, and South India. Found inside – Page 134The most important deposits are in Brazil ( “ Palmeira ” amethyst of Rio Grande do Sul , “ Maraba ” amethyst of Para ) , Madagascar , Zambia , Uruguay , as ... Found inside – Page 11Uruguayan amethyst and Brazilian amethyst are a great example: Both are beautiful purple amethyst stones, but Uruguay is home to a lot of stalactite ... Found inside – Page 22Primarily mined in Brazil, Uruguay, and North America, amethyst is noted for its vitreous (glass-like) luster. The word amethyst is of Greek origin and ... Found inside – Page 147The main Brazilian amethyst and agate deposits are located in the north (Alto ... The basaltic flows of southern Brazil and Uruguay are famous worldwide and ... In this vivid account, Kryiacos C Markides introduces to us the rich and intricate world of Daskalso, The Magus of Strovolos. Found inside – Page 196Brazil also furnishes large quantities of very good quality . Amethyst . The chief charm of the Siberian amethyst lies in its ... frequently contain amethysts , but Brazil , Uruguay , and Siberia furnish the great bulk of the stones that are regarded as ... Found insideBrazil, Uruguay, and Siberia furnish us with the best specimens of the dark coloured stones. The common Amethyst is found in nearly all parts of the world, ... Found insideWhen she read the name of the first president of Uruguay, Ainsley laughed out ... Then the residents fought off jealous attacks by Brazil and Argentina. Found inside – Page 43It is the clear and transparent February's Birthstone — The Amethyst material that is known as " precious amethyst ... BURNT " AMETHYST In a few rare NE has never actually acquired true ONE species known as “ corundum , ” which is cases ... The stone , therefore , about 15 tons , were shipped to Idar and a Its Hebrew name , " Ah lamah , ” compared may be almost ... heavenly kingdom in humble The " occidental amethyst " as it is called , northern part of Brazil , some beautiful souls . Found insideOrigin: Brazil and Uruguay. I have found that Uruguay has darker purple amethyst clusters than Brazil. Both countries have incredible, enormous mines! Found inside – Page 127AGATE , Striped from Uruguay . Heavily Patterned 1/2 lb. ... AMETHYST , BRAZIL , Brilliant Translucent Purple Qtz . 4 oz . AMETHYST , LILAC ... BLOODSTONE , INDIA , Bright Red Spots & Patterns Against Dark Green Va oz . CAIRNGORM ... Found inside – Page 437When amethyst is heated over the range 300 to 560°C, ... Area; Jakobina; Vaequen Pode, Bahia violet — yellow — brown Serra, Brazil, Uruguay violet — light ... Found inside – Page 219amethyst. mining. in. low. volume. roads. W. P. Núñez, J. A. Ceratti, R. Malysz & T. S. Retore Federal University of Rio Grande do Sul, Porto Alegre, Brazil ... Found inside – Page 494Uruguay amethyst; a commercial term for transparent, irregular violet variety of amethyst from the border of Uruguay and Rio Grande do Sul, Brazil. Found inside – Page 852Many of the hollow agates of Brazil and Uruguay contain a crop of amethyst-crystals in the interior. ... and in the following year was made a K.B. His conduct of the operations against the Indians under Pontiac was, however, far from being as ... Found inside – Page 41The first step in amethyst receiving its purple color begins during crystal ... In Brazil and Uruguay large amounts of amethyst are found in the cavities of ... Found inside – Page 253Amethyst is found in Brazil, Uruguay, Africa, Mexico, Bolivia, Canada, and in other countries. Canadian amethyst from Thunder Bay, Ontario, is different for ... Found inside – Page 88Elongated habits are exceptional in amethyst . In older collections the only " tall " amethysts to be seen have come from a long - dead locality , Chemnitz in Hungary . Most crusts from Brazil and Uruguay have small to medium " points . Found inside – Page 16ORIGINS Amethyst is a variety of crystalline quartz that ranges in color ... significant deposits of amethyst are found in southern Brazil, Uruguay, ... Found inside“From that moment on, the amethyst stone was known to hold significant protective ... Places like Brazil, Uruguay, Bolivia, and Argentina come to mind, ... Found inside – Page 174LOCALITIES : Brazil , Uruguay , India , Madagascar , Montana and California USA . Amethyst has recently been synthesized . Amethystine quartz [ 2 ] Compact ... Found inside – Page 144amethyst A quartz mineral boasting colour extravagance in purples through violets. ... Much Amethyst for sale is found in Brazil, Uruguay and Madagascar, ... Found inside – Page 224Garnet Opal Quartz ( Amethyst ) Rhodolite Sapphire ( Oriental Amethyst ) Sodalite Spinel Star Sapphire Syrian Garnet ... Amethyst American Amethyst Auvergne Amethyst Brazilian Amethyst Oriental Amethyst Siberian Amethyst Uruguay ... Found insideInformation facts: Fine Amethysts have been set in religious jewelry and royal crown ... The principal sources are Brazil, Arizona, Uruguay, and Russia. Found inside – Page 293Water Agate, Brazil Agate slice, Brazil, with 'stomach' signature Amazonite, raw crystal, Namibia Amethyst, drusepiece, Uruguay Amethyst crystal, ... Found inside – Page 51RaBra on heatdecolorized amethyst and smoky quartz , in 1908. Specimens of amethyst from Brazil and Uruguay , some of which had been decolorized by heating in oxygen , others in hydrogen , all became pale violet after four to five days of ... Found inside – Page 37Most amethyst comes from Brazil, Uruguay and Madagascar though it is found around the world. Amethyst takes its name from the Greek word “a-methystos” which ... Found inside – Page 74Yellow topaz , amethyst , agates , and other colored stones of Brazilian origin are in fair demand , while cameos are gradually coming into fashion . Found inside – Page 128δ18O values of amethyst from volcanic rocks in Greece (diamonds). ... For the amethyst-bearing geodes in the basalts of Uruguay and Brazil, low temperatures ... Found insideOn exposure to heat, amethyst generally becomes yellow, and much of the ... agates of Brazil and Uruguay contain a crop of amethystcrystals in the interior. Found inside – Page 102Oval mixed-cut amethyst This gem has triangular facets on the top half ... broken base Where crystal separated from matrix BRAZILIAN AMETHYST CRYSTAL ... Found inside – Page 21011.55), Uruguay, and Madagascar. In many cases, amethyst is composed of polysynthetic, thin, narrow spaced Brazil Twin lamellae which are arranged parallel ... Found inside36 Amethyst Rosette Brazil Original size 90 × 103 mm The colorof amethyst can ... in Braziland Uruguay that the value of amethyst dropped substantially. Found inside – Page 43Amethyst Quartz Color : Purple Group : Silicates Hardness : 7 Amethyst is quartz colored purple by trace ... Occurrences : Africa , Brazil , Uruguay . Found insideMadagascar, Brazil, South America, India, Uruguay, the United States, ... Genesis of name: Amethyst derives its name from the Middle English word amatist, ... Found inside – Page 948199 DEEP PURPLE AMETHYST “ PORTA JOIA ” Artigas , Artigas Department , Uruguay ... hue that is very distinctive when compared to its Brazilian cousins . Found inside – Page 279Amethyst was used as a gemstone by the ancient Egyptians and also in ... from Brazil and Uruguay contain crops of amethyst crystals in their interiors. Found inside – Page 15AMETHYST Because Amethyst was thought to encourage celibacy ( it was believed to have a sobering effect not only on ... Brazil , Kenya , Madagascar , Uruguay & Zambia Pinkish purple to purple Quartz 7.00 1.54 - 1.55 6.50 AMETHYST ... Found inside – Page 196Brazil also furnishes large quantities of very good quality . Amethyst . The chief charm of the Siberian amethyst lies in its ... frequently contain amethysts , but Brazil , Uruguay , and Siberia furnish the great bulk of the stones that are regarded as ... Found insideAmethyst is found in a variety of locations worldwide: Ontario, ... The morphology of many amethysts, especially those from Canada, Uruguay, ... Found inside – Page 19BRAZIL . 15. Amethyst - Lake Baikal , Siberia , Russia . 16. Amethyst - Uruguay , South AMERICA . 17. Amethyst - Uruguay , SOUTH AMERICA . 18. Amethyst - Halsbach , near Freiberg , SAXONY . 19. Quartz - Rose Quartz — The colour is ... Found insideAmethyst can be formed over a wide range of temperatures and is, ... district of Uruguay and adjacent Rio Grande do Sul area of Brazil, where amethyst forms ... For the amethyst-bearing geodes in the following year was made a K.B makes a grand entrance, and a of... 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