 | | Catalog/List | | crystals in crystalline feldspar with minor fluorite. X 20 needed 1.5cm £4 no/2 feldspar 37 ANCYLITE Ce Dark...grained mass in calcite .CeSr CO/3 Ix½ £2.50 Ix! £4 Feldspar 20 ANCYLITE Ce Mt Yukspor, Kola Russia colourless...distributed in Porphyry. lx2 £1.50 2x2 £3 2x3 £5 3x4 £8 Feldspar 44 ANDRADITE Benallt Mine,Lleyn ,Wales Andradite... 1085 Ix! £1.50 lx2 £3 2x2 £6 2x3 £9 Dolomite group 822 ANNABERGITE LauruimGrcccc C:ibrerite variety...X ½ £5 Ni As0 H/20 867 ANNABERGITE Ait Hamanc Morocco rich green mass, not pure, with minor calcite or |  | | Catalog/List | | Syenite Rock . Microprobed material lxl £1 lx2 £2 Feldspar ½" £4 Ix! £6 lx2 £12 2x2 £25 35 ■ ALBITE Hoydalen...quite well covering Basalt. lxl £4 lx2 £8 2x2 £16 Feldspar Ix I £1.50 lx2 £3 Zeolite 16 ALBITE Lauvland,...CaFeP0/4 lxl £1.50 lx2 £3 2x2 £4.50 2x3 £6.50 Feldspar 963 ALBITE Maine USA 811 ANATASE Tysse, Hardanger...3mm crystal on quartz TiO lxl £3 Ix2 £5 2x2 £10 feldspar £5 ····- ~-------·-·-- ·· -·· 1077 ■■ ALLOPHANE...Quarry,Cornwall Black micro crystals in crystalline feldspar with minor fluorite. X 20 needed Greenish , good |  | | Catalog/List | | orange-red masses with darker Hornblende lxl £1 lx2 £2 Feldspar lxl £2 lx2 £3 BaS0/4 --- ---------------------------...semi-vitreous mass lxl £I.SO lx2 £3 2x2 £4.50 Feldspar Ix2 £4 2x2 £8 2x3 £ 12 3x4 £25 Be Al SiO · - -----...pale pink crystalline mass with some micros on Feldspar. lxl £3 lx2 £5 2x2 £12 Al Mn SiO ½" £4 lxl £8...Finland Feldspar group pure pale brown cleavages. Rich black masses in matrix 2x3 £9 Fclspar Group lxl £1...green . Quite rich in feldsp ar. Blueish masses in Feldspar lxl £5 lx2 £8 1x2_~ ---· ·- ·-· ··~,g ~8 ___ _ |  | | Journal (issue) | | you to become a Fellow and join this important group and Wear the medallion with pride! Contact Tom...Rhodochrosite on Manganite N'Chwaning Mine, Northern Cape Province, South Africa. 8.7 cm In 1978 a historic discovery...not a single mine or even a group of discrete mines but rather a region where, most commonly, crystals...elbaite crystals clustered on matrix with quartz and feldspar have emerged from Pyinygi Taung, where mining... of the British conquest in the 1880s, the Mogok region, controlled in turns by Shan and Burmese, traded |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...2013). MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series...massive calcite. or, rarely, still attached to the feldspar/mica walls of the dike (www.davidkjoyceminerals...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during |  | | Journal (issue) | | CM XIEFANG MINE , GANZHOU PREFECTURE , JIANGXI PROVINCE , CHINA TOM SPANN PHOTO ■ ■ lN'flERNA]L...volume 47, May- June, 2016 Amphibole Group Crystals of amphibole-group minerals in the Schemnitz/Banska Stiavnica...associated with augite, spine), clinochlore and epidote group minerals; such crystals also occur in the "fassaite"...new specimens were unearthed in the Hodrusa-Hamre region in 2014 (Ruzicka et al., 2015). Figure 40. Aragonite...Pavel Skacha photo. Figure 45. Barite crystal group, 10 cm, from the Rosalia mine, 6th level, HodrusaHamre |  | | Journal (issue) | | Dadongla (Yunchangping) mine near Tongren, Guizhou Province, China. Marcus Budil specimen; Jeff Scovil photo...of Tonglushan, near the city of Daye in Hubei Province, have revealed important historical information...being put into practice (Sommerlatte, 1985). The province of Yunnan, in the southwestern part of the Chinese...beginning in the second decade of the 18th century the province developed into one of the most important centers...China. Even in the relatively well-worked-over region of Hunan and its neighboring provinces there are |  | | Journal (article/letter/editorial) | | achondrite meteorite that belongs to the howardite group, which along with eucrites and diogenites, constitute...aliphatic CH2 and CH3 groups. The C-H stretching region of the spectrum (3100-2600 cm-1) is dominated by...forming clusters that scatter in and around a dark region (~ 400 μm in size) in the KBr-pellet. Micro-Raman...Micro-FTIR spectra, collected from the diamond-enriched region are dramatically different from the KBr-pellet...KBr-pellet spectrum, and their C-H stretching region is dominated by a strong and broad absorption band at ~ 2886 |  | | 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) | | when the “3-dimensional order” button is Space Group | Oxides and reislaesd| Ill clicked. 2-dimensional...Representations of Some Space Groups 208 Space Group Derivation 208 Illustrations of Space Groups 208...442 Inosilicates 446 Pyroxene Group 447 Pyroxenoid Group 451 Amphibole Group 452 Phyllosilicates 456 Tectosilicates...Tectosilicates 467 SiO, Group 468 Feldspar Group 470 Structure 471 Composition 474 16. CRYSTAL CHEMISTRY...2 Evaporite Minerals 394 Feldspathoid Group 477 Zeolite Group 477 References and Further Reading 19 |
|
Imilchil, Imilchil Caïdat, Imilchil Cercle, Midelt Province, Drâa-Tafilalet Region, Morocco