 | | Book | | notable example in this category is the Nuristan District of Afghanistan, which over the past 10 years has...Saijo, Iyo Province, Ehime Prefecture, Island of Shikoku Ashio Mine, Shimotsuke Province, Tochigi Prefecture...Arakawa Mines, Ugo Province, Akita Prefecture, Honshu The Obira Mine, Bungo Province, Oita Prefecture,... Hyuga Province, Miyazaki Prefecture, Kyushu Otome Mine, Suisho Pass, Kurobera, Kai Province, Yamanashi...Prefecture, Honshu Mino Province, Gifu Prefecture, Honshu; and Omi Province, Shiga Prefecture, Honshu |  | | Journal (issue) | | Prospectors' Guide Map to the Gem Deposits of Sri Lanka C. B. Dissanayuke and M.S . Rupasinghe Two Treated-Color...of the elegant jewels favored by the distinctive group known as the Edwardians, who reigned as the leaders...of metamorphic origin (from localities such as Sri Lanka, Myanmar, Please see LETTERS, p. 226 Figure B...society, were Bahrain in the Persian Gulf, Ceylon (now Sri Lanlza), and Australia. Freshwater pearls came from...Mountains of Siberia were the source for demantoid garnet, pink topaz (again, see figure 3), Jcwcls of thc |  | | Book | | Miguel Hortiguela, LPPO Illustrations: Crowle Art Group Printed in China The publisher gratefully acknowledges...ofjust a few minerals; quartz and the feldspar group are the most abundant processes — called biominerals...A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...minerals such as diamond, pyrite, fluorite and garnet. There are three main variations of this cube,...these. The other numbers and letters in the space-group formula refer to other rotations and translations |  | | Book | | a mineral belonging to the actinolitetremolite group having the nature of an asbestos. cabochon a gemstone...some emerald, quartz and garnet • anatase in rock crystal • apatite in garnet, kornerupine, corundum and... Formation of inclusions 5 • epidote in rock crystal • garnet in corundum • hematite in topaz and euclase • •...emerald rutile in quartz spinel in ruby zircon in garnet, corundum and kornerupine Many of these minerals...apatite so often found in corundum and hessonite garnet are recognized by their well-formed appearance | | | Book | | a mineral belonging to the actinolitetremolite group having the nature of an asbestos. cabochon a gemstone...some emerald, quartz and garnet • anatase in rock crystal • apatite in garnet, kornerupine, corundum and...inclusions • • • • • • • • 5 epidote in rock crystal garnet in corundum hematite in topaz and euclase mica:...apatite so often found in corundum and hessonite garnet are recognized by their well-formed appearance...reflect earlier phases of their host's development. Garnet may be seen in diamond crystals and examination |  | | Book | | California, USA Foliated aggregates are found in Sri Lanka (Radegara, Galle region). Accumulations in Buckingham...up to 30 mm ( P/16in) across, come from Hunan province, China_ Application: As ore. Gudmundite FeSbS...Norway; large crystals also occur in the Temiskaming district, Quebec, Canada; tabular crystals up to 120 mm...mm (25/32 in) across found al Chenzhou, Hunan province, China. Application. Pb, Cu and Sb ore 56 ORTHORHOMBIC...Czech Republic. lt is common in the Coeur d' Alene district, Idaho, USA. Acicular crystals up to 30 cm ( L2 |  | | Book | | California. USA Foliated aggregates are found in Sri Lanka (Radegara, Galle region). Accumulations in Buckingham...crystals up to 30 mm (1V» in) across, come from Hunan province, China. Application: As ore. Gudmundite FeSbS...Norway: large crystals also occur in the Temiskaming district, Quebec, Canada; tabular crystals up to 120 mm...mm (25/32 in) across found at Chenzhou, Hunan province, China. Application: Pb, Cu and Sb ore. ORTHORHOMBIC...Czech Republic. It is common in the Cocur d'Alene district, Idaho, USA. Acicular crystals up to 30 cm (12 |  | | Book (edition) | | terms (see also explanations chapter): - Strunz Group (Strunz (2001; version 9); this provides the mineralogical...optical characteristics or shapes. - The Point Group illustrates how symmetrical a particular mineral...minerals which appear within a particular Strunz sub-group (listed here) or in mineral assemblages of a closely...fast overview and reflect the abbreviated Strunz group. • Where necessary, abbreviations for important...scheme reflects compositional systematics; the main group is colour-coded on the top right page of the descriptions; |  | | Journal (issue) | | Cylinder Seals and Scarabs. The first important group of engraved seals were the cylinder seals (see figure...The cylinder seal represents the first important group of seals used by man. An inverse image was engraved...available for engraving (Boardman, 1968). Amethyst and garnet became particular favorites and were often used...Winter 1983 almandine) rhodolite! and hessonite garnet) amethyst, rock crystall sapphire) bloodstonel...indicated as a cure for lunacy; and a lion engraved in garnet would bring riches and honor. The wearer of an |  | | Book (edition) | | in brackets) arc shown in the following list: Sri Lanka (Ceylon), Malagasy Republic (Madagascar), Kampuchea...lcositetrahedron 49 Group of quartz crystals 63 Plates 1 2 3 4 5 6 7 8 Corundum Facing p. 42 Beryl group Facing...Facing p. 58 Jade Faci11g p. 58 Opal group Facing p. 59 Quartz group Faci11g p. 59 Figure 1 Plan of the...Many gemstones, however, e. g. tourmaline, spine!, garnet, corundum, etc., show little or no trace of cleavage...precious stones; resinous, as in some kinds of garnet; silky, as in cat's-eye, sari11-spar, and several |  | | Book (edition) | | Minerals that are listed as belonging to the same group are similarly closely comparable in composition...Cand CSPG Pennskiye gubemskiye wdomo.sti (Perm district ga=elle) Pl,ilosopl,ical Maga=ine Periodico de...Mountains,Russia,DANS 142, 181-184(sir.) Aescl1yni1e group 0 Aeschynite-(Nd),(Nd,Ce,Ca,Th)(Ti,Nb)i(O.OH)...Urstad,HitteroIsland,Norway, 61. 178 Aeschy11i1e group D Afghanite,[(Na,K)22Ca10][Si24Al14O9<,](SO.)...2105, EJM9, 21-30 (sir.) Ca11cri11ile-Sodali1e group D Afwillite,Ca,(SiO3OH)1·2H1O, mon.. compareBultfonteinite |  | | Report (issue) | | —The Mineral Resources of the North-West Frontier Province. By A. L. Coulson. (Prioe As. 14 or la. 3d.) No... Uses .... Occurrence Industry and Marketing . Garnet .... Introduction . Uses .... Grades .... Occurrence...rocks of Prc-Cambrian age, known as the Purana group. They are known as the Cuddapah and Kurnool systems...Iyer : Indian Precious Stones. (i) The Southern group of occurrences.—These occurrences include localities...after showers of rain at Wajra Karur, Anantapur district. There is an igneous pipe or neck, of bluish tuff |  | | Book | | proud to wear A flashing diamond solitaire, Or garnet with a subtle hue, ] Or emerald green, or sapphire...References and Suggested Reading Foil 106 Stones Garnet-Glass References and Suggested Reading 86 8 The...to give structure. For example, the mineral group olivine has as one member pure magnesium silicate...essentially noncrystalline and thus falls in this group, it is treated in the text as a mineral. There are...gemstones. Most members of this relatively small group are rare, and only about 20 are commonly encountered | | | Book | | proud to wear A flashing diamond solitaire, Or garnet with a subtle hue, Or emerald green, or sapphire...Foil Backs 105 Opal Doublet 106 Star Stones 106 Garnet-Glass Doublet 106 Less Common Doublets and Triplets...the crystal structure. For example, the mineral group olivine has as one member pure magnesium silicate...essentially noncrystalline and thus falls in this group, it is treated in the text as a mineral. There are...gemstones. Most members of this relatively small group are rare, and only about 20 are commonly encountered |  | | Book (edition) | | belongs to a broader group of related minerals, the name adopted for the group is given beneath the formula...editions of this book. Brieny. within each anionic group the minerals arc arranged in order determined by...those of the alkaline earths, etc. Within each group the minerals are tabulated with increasing anion...7.3 AbernalhJile. K(U00As0,.4H�O. Meta-autunite group. M.E. Thompson. B. Ingram. and E.B. G ross ( 1 956)...p. 579. Abkhazite. syn. of tremolite. Amphibole group. N.E. E fremov ( 1 940 for 1 938) Trans. 111st. |  | | Book (edition) | | extensively rewritten by the book’s distinguished group of authors in the light of new research and important...all varietal names, synonyms, spelling variants, group names, and so forth; only names in contemporary...contemporary use have been included. Most of the mineral group lists presented were taken from the Glossary of Mineral...letters pointing out that for some entries our space group, Z, and lattice constants are mutually exclusive...trigonal. Class: Classes are designated by their point group symmetry. Note that as mineralogists we use the | | | Book (edition) | | extensively rewritten by the book's distinguished group of authors in the light of new research and important...all varietal names, synonyms, spelling variants, group names, and so forth; only names in contemporary...contemporary use have been included. Most of the mineral group lists presented were taken from the Glossa,y of Mineral...letters pointing out that for some entries our space group, Z, and lattice constants are mutually exclusive...trigonal. Class: Classes are designated by their point group symmetry. Note that as mineralogists we use the |  | | Book | | MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Administered Tribal Areas and North West Frontier Province. Ilmenite crystal clusters to 12 cm across have...of rutile (Weerth, 2004). Tonniq Valley, Skardu district, Gilgit-Baltistan [Northern Areas]. Beginning...hematite. Zagi [Zegi] Mountain, Warsak district, North West Frontier Province. Surface diggings worked by local...to 6 cm (2005: 120). Los Remedios mine, Taxco district, Taxco, Guerrero. Ilvaite occurs in the wallrock |  | | Book (edition) | | T11rquois . .••• 7½ Andalusite Beryllonite 7¼••• ••• Garnet • • • Opal ••• ••• 7~7 ••• Jade Iolite • • • •••...Many gemstones, however, e.g., tourmaline, spinel, garnet, corundum, &c., show little or no trace of cleavage...specific gravity. For stones like zircon, corundum, garnet, &c., which have a specific gravity above 3 · 6...precious stones; resinous, as in some kinds of garnet; silky, as in the cat's-eye, satin-spar, and several...strong dispersion are sphene (p. 56) and green garnet (p. 62). Fig 8.--Dispersion and total internal |  | | Book (edition) | | to the chemical formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest...chemical formula, structure (crystal system, space group, and unit cell dimensions), and at least some other...site occupancy. The Sb members of the tennantite group (2.G) will serve as a good example: tetrahedrite...registered in this book (e.g. in the amphibole group). For more detailed information see "Dana's System...expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture) | | | Book (edition) | | Many gemstones, however, e.g., tourmaline, spinel, garnet, corundum, &c., show little or no trace of c]eavage...specific gravity. For stones like zircor1.,) corundum, garnet, &c., which have a SJ)ecific gravity above 3 ·...precious stones ; resino1,is, as in some kinds of garnet; silky, as in the cat's-eye, satin-spar, and several...strong dispersion are sphene (p. 56) and green garnet (p. 62) . • Fig 8.--Dispersion and total internal...like glass, and to precious stones like . diamond, garnet, and spinel which crystallise in the cubic .syste1n |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Species containing more than one anion or anion group may be assigned to a separate class or may be assigned...specifies the atomic (cation to anion, or to anion group) ratio for the mineral. This and the remaining numbers...appropriate Dana number. When recognized, membership in a group is noted. Occasionally, the phrase “an inadequately...internally contradictory. 5A. Groups The term group refers to an aggregate or multiple (usually three...identical or closely similar structure and chemistry. A group may be named when there are several end members |  | | Book | | 22:65-69 [Abstracts of the] FM-TGMS-MSA Symposium on Garnet (chairman: K. J. Wenrich) 24:61-68 Abstracts of...APOPHYLLITE Nomenclature revisions in the apophyllitc group: hydroxyapophyllite, apophyllite, fluorapophyllite...Uvite, a new (old) common member of the tounnalinc group and its implications for collections 8: I00-108...Rybicki) 7:72-77 Chalcanthite from the Helvetia district, Arizona (by G. Robinson) 9:252 Cuprite [from...Arizona (by W. A. Thompson) 11:248-250 The Tombstone district, Cochise County, Arizona (by S. A. Williams) 11:251-257 |  | | Book | | Sapphire Chrysoberyl, Topaz and Spinel Beryl The Garnet Group Tourmaline and Zircon Quartz, Agate and Chalcedony...gravel C. Corundum group D. Chrysoberyl and spinel E. Beryl group F. Garnet group G. Topaz and tourmaline...tourmaline H. Zircon I. Quartz group J. Opal K. Chalcedony group L. Jade minerals M. Lapis lazuli...crystal showing ‘trigons’ 12. Group of beryl crystals 13 a. Group of quartz crystals 13b. Polished...be encountered, giving in each case the mineral group to which they belong. Names which are definitely |  | | Book (edition) | | Crystals of diamond . • •• ,, 30, 31. Crystals of garnet ••• Fig. 32. Crystals of quartz • •• ' V 6 7... R F I FELSPAR I var. Av~ntur,n« - , Q -GARNET □ Murchison Snuff-Box EPIDOTE- G IOLITE -SPOOUMENE...tl=====P===• LAPIS LAZULI -DIOPSIDE I LABRADORITE-1 -GARNET = = = ~ j - J A D.E L!::j '=======' FLUOR SPAR-I...• Euclase ... Andalusite Hambergite Zircon ••• Garnet • • • Cordierite Tourmaline Quartz • • • Danburite...Many gemstones, however, e.g. tourmaline, spine!, garnet, corundum, etc., show little or no trace of cleavage |
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