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Calderonite Mineral Data

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General Calderonite Information

Help on Chemical  Formula: Chemical Formula: Pb2Fe+++(VO4)2(OH)
Help on Composition: Composition: Molecular Weight = 711.73 gm
   Vanadium  13.60 %  V    24.28 % V2O5
   Iron       7.06 %  Fe   10.10 % Fe2O3
   Copper     0.45 %  Cu    0.56 % CuO
   Hydrogen   0.21 %  H     1.90 % H2O
   Lead      58.22 %  Pb   62.72 % PbO
   Oxygen    20.46 %  O
            ______        ______ 
            100.00 %       99.55 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb2Fe3+0.9Cu0.05(VO4)1.9(OH)1.5
Help on Environment: Environment: Upper oxidation zone of a Pb-Zn hydrothermal deposit. (Mn-free brackebuschite)
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Santa Marta and Azuaga, Badajoz province, Spain Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Salvador Caleron (1852-1911) in recognition of his important contribution to the mineralogy of Spain.
Help on Synonym: Synonym: Ferribrackebushite

Calderonite Image

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Comments: Secondary electron image showing a cluster of prismatic calderonite crystals. (AmMin, 88:1704).
Location: Santa Marta, Badajoz province, Spain. Scale: See Image.
© American Mineralogist

Calderonite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.2516:1:1.4591
Help on Cell Dimensions: Cell Dimensions: a = 7.66, b = 6.12, c = 8.93, Z = 2; beta = 112° V = 388.15 Den(Calc)= 6.09
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.242(1)(211), 2.746(0.48)(003), 2.98(0.48)(103),4.893(0.43)(011), 4.166(0.34)(002), 3.058(0.25)(020), 2.449(0.2)(022),

Physical Properties of Calderonite

Help on Color: Color: Reddish orange, Reddish brown.
Help on Diaphaneity: Diaphaneity: Semitransparent-translucent
Help on Fracture: Fracture: Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: red orange

Optical Properties of Calderonite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.12 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1806,KC= 0.2052
Ncalc = 2.25
Help on Optical Data: Optical Data: Biaxial (+), b=2.1

Calculated Properties of Calderonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.25 gm/cc
note: Specific Gravity of Calderonite =6.09 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.13
Boson Index = 0.87
Help on Photoelectric: Photoelectric: PECalderonite =1,042.08 barns/electron
U=PECalderonite x rElectron Density=5,472.11 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Calderonite is Not Radioactive

Calderonite Classification

Help on  Dana Class: Dana Class: (40)Hydrated Phosphates, etc
  (40.02)where A++ (B++)2 (XO4) � x(H2O)
  (40.02.08)Brackebushite Group Brackebuschite Pb2(Mn,Fe)(VO4)2(OH) P 21/m 2/m Arsenbrackebuschite Pb2(Fe,Zn)(AsO4)2•(H2O) P 21/m 2/m Feinglosite! Pb2(Zn,Fe)[(As,S)O4]2•(H2O) P 21,P 21/m Mono Calderonite! Pb2Fe(VO4)2(OH) P 21/m 2/m Bushmakinite! Pb2Al(PO4)(VO4)(OH) P 21/m 2/m
Help on  Strunz Class: Strunz Class: 08.BG.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BG -With medium-sized and large cations, (OH, etc.):RO4 = 0.5:1
08.BG.05 Arsenbrackebuschite Pb2(Fe,Zn)(AsO4)2•(H2O) P 21/m 2/m
08.BG.05 Bearthite Ca2Al(PO4)2(OH) P 21/m 2/m
08.BG.05 Arsentsumebite Pb2Cu(AsO4)(SO4)(OH) P 21/m 2/m
08.BG.05 Brackebuschite Pb2(Mn,Fe)(VO4)2(OH) P 21/m 2/m
08.BG.05 Feinglosite! Pb2(Zn,Fe)[(As,S)O4]2•(H2O) P 21,P 21/m Mono
08.BG.05 Gamagarite Ba2(Fe,Mn)(VO4)2(OH) P 21/m 2/m
08.BG.05 Goedkenite (Sr,Ca)2Al(PO4)2(OH) P 21/m 2/m
08.BG.05 Tsumebite Pb2Cu(PO4)(SO4)(OH) P 21/m 2/m
08.BG.05 Calderonite! Pb2Fe(VO4)2(OH) P 21/m 2/m
08.BG.05 Bushmakinite! Pb2Al(PO4)(VO4)(OH) P 21/m 2/m
08.BG.05 Tokyoite! Ba2Mn(VO4)2(OH) P 21/m 2/m

Other Calderonite Information

Help on References: References: NAME( AmMin, v 88, p 1703) PHYS. PROP.(AmMin, v 88, p 1703) OPTIC PROP.(AmMin, v 88, p 1703)
Help on See Also: See Also: Links to other databases for Calderonite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 08.BG.05





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