Mineralogy Database

Hydroxylherderite Mineral Data

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General Hydroxylherderite Information

Help on Chemical  Formula: Chemical Formula: CaBe(PO4)(OH)
Help on Composition: Composition: Molecular Weight = 161.07 gm
   Calcium     24.88 %  Ca   34.82 % CaO
   Beryllium    5.60 %  Be   15.53 % BeO
   Phosphorus  19.23 %  P    44.06 % P2O5
   Hydrogen     0.63 %  H     5.59 % H2O
   Oxygen      49.67 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaBe(PO4)(OH)
Help on Environment: Environment: Pegmatitic rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1894
Help on Locality: Locality: Paris, Maine, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition and relationship to herderite.
Help on Name Pronunciation: Name Pronunciation: Hydroxylherderite Say HYDROXYLHERDERITE
Help on Synonym: Synonym: Hydroxyl-herderite - Renamed Hydroxylherderite by Mineralogical Record, v39 (2008), p131
  ICSD 67601
  PDF 34-147

Hydroxylherderite Image

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Comments: Transparent crystals of hydroxylherderite.
Location: Lord Hill quarry, Stonehame, Oxford County, Maine, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Hydroxylherderite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.2777:1:0.6295
Help on Cell Dimensions: Cell Dimensions: a = 9.802, b = 7.671, c = 4.829, Z = 4; beta = 90.01° V = 363.10 Den(Calc)= 2.95
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.135(1), 2.868(0.45), 3.433(0.35),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 0 1 1) ( 1 1 0) ( 1 1 1) ( 0 0 1)

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Physical Properties of Hydroxylherderite

Help on Cleavage: Cleavage: {110} Indistinct
Help on Color: Color: Blue, Blue green, Colorless, Greenish white, White.
Help on Density: Density: 2.94
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.
Help on Hardness: Hardness: 5-5.5 - Apatite-Knife Blade
Help on Luminescence: Luminescence: Fluorescent, Short UV=yellow-white.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Hydroxylherderite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.001 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2095,KPDmeas= 0.2102,KC= 0.21
Ncalc = 1.62
Help on Optical Data: Optical Data: Biaxial (-), a=1.601, b=1.622, g=1.631, bire=0.0300, 2V(Calc)=64, 2V(Meas)=70.

Calculated Properties of Hydroxylherderite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.92 gm/cc
note: Specific Gravity of Hydroxylherderite =2.94 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEHydroxylherderite = 4.05 barns/electron
U=PEHydroxylherderite x rElectron Density= 11.81 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hydroxylherderite is Not Radioactive

Hydroxylherderite Classification

Help on  Dana Class: Dana Class: (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.05)where (A B)2 (XO4) Zq
  (41.05.04)Herderite Group Herderite CaBe(PO4)F P 21/a 2/m Hydroxylherderite CaBe(PO4)(OH) P 21/a 2/m Vayrynenite MnBe(PO4)(OH,F) P 21/a 2/m Bergslagite CaBe(AsO4)(OH) P 21/c 2/m
Help on  Strunz Class: Strunz Class: 08.BA.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BA -With small and medium-sized cations
08.BA.10 Bergslagite CaBe(AsO4)(OH) P 21/c 2/m
08.BA.10 Herderite CaBe(PO4)F P 21/a 2/m
08.BA.10 Hydroxylherderite CaBe(PO4)(OH) P 21/a 2/m

Other Hydroxylherderite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Collectors Book of Fluorescent Minerals) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Hydroxylherderite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 08.BA.10





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