Soom, M., Armbruster, Th., Stalder, H. A. (1988): OH-rich topaz from alpine fissures in Triassic dolomites near Lugnez, Graubünden (Mesozoic cover of Gotthard Massif, Swiss Alps). Schweizerische mineralogische und petrographische Mitteilungen 68, 141-155.

Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 410.

Reference Search (possible matching items)

	*(1996) The Journal of Gemmology* Vol. 25 (4) Gem-A**	Journal (issue)
	crystals upon quartz, from the Säo Jose da Safira region. Sample is 130 mm long. Occasionally contrasting...freely transmitted except for a faint absorption region near 560 nm. There is a fairly strong and narrow...tourmalines show a broad absorption in the green region centred about 525 nm accompanied by a narrow band...tourmaline deposits in Minas Gérais. In some occurrences the mica plates appear as if they were plastered...Suaçuî to the southwest (Figure 18). The whole region belongs to the 'Oriental pegmatitic province' of
	*Romaine, Garret (2020) Rocks, Gems, and Minerals* (3rd ed.) Falcon Guides, Guildford, Connecticut.**	Book (edition)
	penny, some feldspar, a quartz crystal, and some topaz handy, you should be able to identify most minerals...chert, chalcedony, and jasper; streak plate Garnet Topaz Corundum Diamond Be a Safe and Considerate Collector...diorite. The New England states, the Rocky Mountain region, Arizona, California, and Washington are all good...quartz. Other minerals include quartz, tourmaline, topaz, mica, apatite, lepidolite, and monazite. There...sought for large crystals of quartz, smoky quartz, topaz, and other prizes. Famous pegmatite belts and outcrops
	Henley, H. F., Brown, R. E., Brownlow, J. W., Barnes, R. G., Stroud, W. J. (2001) Grafton-Maclean Metallogenic Map (SH/56-6, SH/56-7) Metallogenic Study and Mineral Deposit Data Sheets. Geological Survey of New South Wales	Report (issue)
	crystals of cassiterite (dark brown) in a quartz–topaz vein, Taronga prospect (right, see Photograph 30)...more than two thousand mineral deposits and occurrences which occur in the map sheet area. The dominant...molybdenum, gold, base metal, arsenic and gem occurrences in and around highly fractionated leucocratic...podiform chromite and asbestos deposits and occurrences. Extensive plutonism and coeval volcanism occurred...than one thousand separate mineral occurrences. Most of these occurrences are small, high-grade joint-controlled
	*Tindle, Andy G. (2008) Minerals of Britain and Ireland. Terra Publishing.*	Book
	MB/ are a series of maps to give the mineral occurrences both a spatial and geological context, and some...reflection ofnot only the varied geology of the region but also a once-thriving minerals industry and..."British" species. A further 11 British first occurrences have since been recorded from specimens held...species to his increasing list of British first occurrences. What went unnoticed at the time was that the... so that the context of many of the mineral occurrences can be better understood. The accompanying figures
	*Bouabdellah, Mohammed, Slack, John F. - Eds.* (2016) Mineral Deposits of North Africa. Springer International Publishing. doi:10.1007/978-3-319-31733-5**	Book
	2016936575 © Springer International Publishing Switzerland 2016 This work is subject to copyright. All rights...company is Springer International Publishing AG Switzerland Preface This book is the ﬁrst assembly of...the setting and origin of major deposits in the region, together with information on tonnages and grades...(7) banded iron formation (BIF), (8) Mississippi Valley-type (MVT) zinc-lead, (9) sediment-hosted stratiform...comparisons and contrasts with MVT deposits in the region. The last part is focused on sediment-hosted iron

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Baryte from Topaz occurrences, Renastga Valley, Ilanz/Glion, Surselva Region, Grisons, Switzerland

Baryte from
Topaz occurrences, Renastga Valley, Ilanz/Glion, Surselva Region, Grisons, Switzerland