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Bořickýite

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About BořickýiteHide

Formula:
(Ca,Mg)(Fe3+,Al)4(PO4,SO4,CO3)2(OH)8 · 3-7.5H2O
Colour:
Reddish brown
Lustre:
Waxy
Crystal System:
Amorphous
Name:
Re-named borickite by James Dwight Dana in 1868 in honor of Emanuel Bořický [December 12, 1840 Millin, Bohemia, (Czech Republic) - January 26, 1881 Příbram, Bohemia, (Czech Republic)], systematic mineralogist and petrographer, professor of mineralogy at the University of Prague, who described a similar compound in 1867. Orthography corrected by Rudolf Ignatz Koechlin in 1928. Apparently originally named delvauxene in 1854 by Joseph Ritter von Hauer, but the congruence of the two minerals is unknown.
A questionable mineral, probably identical with Delvauxite, equally doubtful.
Originally reported from Brandberg Mt., Leoben, Styria, Austria.


Physical Properties of BořickýiteHide

Transparency:
Opaque
Comment:
Lustre weakly waxy.
Colour:
Reddish brown
Streak:
Reddish brown

Optical Data of BořickýiteHide

Type:
Isotropic
RI values:
n = 1.57 - 1.67
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Moderate

Chemical Properties of BořickýiteHide

Formula:
(Ca,Mg)(Fe3+,Al)4(PO4,SO4,CO3)2(OH)8 · 3-7.5H2O

Crystallography of BořickýiteHide

Crystal System:
Amorphous
Morphology:
Compact reniform masses.

Synonyms of BořickýiteHide

Other Language Names for BořickýiteHide

Other InformationHide

Notes:
Soluble in HCl.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BořickýiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bořicky (1867) Nat. Zs. Lotos (March, 1867).
Dana, J.D. (1868) System of Mineralogy, 5th. Edition, New York: 588 (as Borickite).
Vála and Helmhacker (1874) Arch. Naturw. Landes. Böhmen: 2: 381.
Vála and Helmhacker (1875) Jb. Min.: 317.
Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 49.
Hintze, C. (1933) "Handbuch der Mineralogie", Vol. 1, part 4.
Meixner, H. (1950): Der Karinthin 11: 242-252.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 915.
Cech, F., P. Povondra (1979) "A Re-examination of Borickyite." Tschermaks Mineralogische und Petrographische Mitteilungen 26: 79-86.

Internet Links for BořickýiteHide

Localities for BořickýiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Styria
    • Leoben District
H. Meixner: Der Karinthin 11:242-252 (1950)
Czech Republic
 
  • Central Bohemian Region
    • Beroun District
Vtělenský J. (1959): Mineralogie oolitických železných rud z některých ložisek Barrandienu. Geotechnica, sv. 26, Nakladatelství ČSAV Praha.
  • Pardubice Region
    • Pardubice District
Prachař, I.: Současný stav výskytu nerostů ve Chvaleticích. Acta musei Reginaehradecensis, série A: vědy přírodní, 1981, roč. XVI., s. 99-102.
 
Mineral and/or Locality  
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