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Chalcedony from
Nazaré, Leiria, Portugal


Locality type:Municipality
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Nazaré, Leiria, Portugal
Photo GalleryView Gallery (6 photos)
Data Identifiers
Mindat Occurrence Record ID:621493
Long-form Identifier:1:3:621493:7
GUID (UUID V4):3f9edaeb-376e-4cad-9f5d-3f21055860ff
References
Reference Search (possible matching items)
Book (volume)
LaboratĂłrio Nacional de Energia e Geologia Amadora, Portugal ISSN 2364-6438 ISSN 2364-6446 (electronic) Regional...Energia e Geologia, former Geological Survey of Portugal, where he acted also as Head of the Geology and...concentrated in regional geological mapping in Portugal and Mozambique, with particular interest in stratigraphy...has been Invited Professor at universities of Portugal and Angola, Author and Editor of several geological...Co-Editor of the recently published Geological Map of Portugal and Spain, 2015, scale 1:1,000,000. v vi Editors
Journal (issue)
(Collins et al., 1990a; Nazaré et al., 1991; Collins, 1992; Lawson and Kanda, 1993). Nazaré et al. were able...13, No. 10, pp. 302–314. Davies G., Neves A.J., Nazaré M.H. (1989) Nickel isotope effects in the 1.4 eV...synthetic diamond. G&G, Vol. 46, No. 4, p. 302. Nazaré M.H., Neves A.J., Davies G. (1991) Optical studies...what would you have? A. Sapphire B. Spinel C. Chalcedony D. Citrine 6. The auction of which diamond led...nature and operation of the company’s chrysoprase chalcedony mine. Mine access requires flying to the town
Journal (issue)
often referred to as the “1.40 eV center” (e.g., Nazaré et al., 1991; Yelisseyev and Kanda, 2007) where...translated vertically to avoid overlap. tion (Nazaré et al., 1991). The separation of the peaks has...grown in the presence of Ni (Collins et al., 1990; Nazaré et al., 1991; Collins, 1992; Lawson and Kanda,...(Dean, 1965; Collins et al., 1990; Collins, 1992; Nazaré et al., 1995). These nickel-related features indicate...synthetic diamond. G&G, Vol. 46, No. 4, p. 302. Nazaré M.H., Neves A.J., Davies G. (1991) Optical studies
Book
national jurisdiction of four countries — Brazil, Portugal, Spain, Great Britain — have geological bibliographies...secondary products there are analcite, zeolites, chalcedony and calcite. Nos. 6, 7 and 8 show chemical analyses...common, the latter filled with opal, quartz, chalcedony and natrolite. The chief difference in chemical...the classical area of Caldas de Monchi- que, Portugal, refers to the greater percentage of mafic minerals...of cryptocrystalline material, presumed to be chalcedony, calcite and chlorite material, in that order
Journal (issue)
(2001) Aggregates of nitrogen in diamond. In M. H. Nazaré and A. J. Neves, Eds., Properties, Growth and Applications...agates in central India. Even though fashioned chalcedony from central India has been used in jewelry for...flow texture, microcrystalline granular quartz/chalcedony, and zeolite inclusions. Several samples showed
Journal (issue)
on the mechanical properties of diamond. In M.H. Nazaré and A.J. Neves, Eds., Properties, Growth and Applications...Smell” from slices of jasper, malachite, quartz, chalcedony, and nephrite. Photo courtesy of Tsarskoye Selo...of the senses using jasper, malachite, quartz, chalcedony, and nephrite. The comparison with the recently
 
Mineral and/or Locality  
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