Hydroxylherderite Mineral Data

[Mineral Galleries] [About Me] [e-Bay Items] [Latest News] [How to Order]
A Diverse Selection of Beautifully Unique Gem & Mineral Specimens
Desert Winds Gems & Minerals • For All Levels of Collectors Worldwide
Aesthetic & Rare Mineral Specimens • Regular Updates

General Hydroxylherderite Information

Chemical Formula:

CaBe(PO4)(OH)

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

Empirical Formula:

CaBe(PO₄)(OH)

Environment:

Pegmatitic rocks.

IMA Status:

Valid Species (Pre-IMA) 1894

Locality:

Paris, Maine, USA. Link to MinDat.org Location Data.

Name Origin:

Named for the composition and relationship to herderite.

Name Pronunciation:

Hydroxylherderite

Synonym:

Hydroxyl-herderite - Renamed Hydroxylherderite by Mineralogical Record, v39 (2008), p131

ICSD 67601

PDF 34-147

Hydroxylherderite Image

Images:

Hydroxylherderite

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

Axial Ratios:

a:b:c =1.2777:1:0.6295

Cell Dimensions:

a = 9.802, b = 7.671, c = 4.829, Z = 4; beta = 90.01° V = 363.10 Den(Calc)= 2.95

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/a

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.135(1), 2.868(0.45), 3.433(0.35),

Forms:

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

Warning: this large pop-up is very compute intensive and may not work well with some computers.

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Lager G A , Gibbs G V , American Mineralogist , 59 (1974) p.919-925, A refinement of the crystal structure of herderite, CaBePO4OH

Physical Properties of Hydroxylherderite

Cleavage:

{110} Indistinct

Color:

Blue, Blue green, Colorless, Greenish white, White.

Density:

2.94

Diaphaneity:

Transparent to Translucent

Fracture:

Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.

Hardness:

5-5.5 - Apatite-Knife Blade

Luminescence:

Fluorescent, Short UV=yellow-white.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Hydroxylherderite

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

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

Electron Density:

Bulk Density (Electron Density)=2.92 gm/cc
note: Specific Gravity of Hydroxylherderite =2.94 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

PE_{Hydroxylherderite}= 4.05 barns/electron
U=PE_{Hydroxylherderite} x rElectron Density= 11.81 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hydroxylherderite is Not Radioactive

Hydroxylherderite Classification

Dana Class:

41.05.04.02 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.05)where (A B)2 (XO4) Zq

(41.05.04)Herderite Group

41.05.04.01 Herderite CaBe(PO4)F P 2₁/a 2/m

41.05.04.02 Hydroxylherderite CaBe(PO4)(OH) P 2₁/a 2/m

41.05.04.03 Vayrynenite MnBe(PO4)(OH,F) P 2₁/a 2/m

41.05.04.04 Bergslagite CaBe(AsO4)(OH) P 2₁/c 2/m

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

References:

NAME( Dana8) PHYS. PROP.(Collectors Book of Fluorescent Minerals) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Hydroxylherderite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Hydroxylherderite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Hydroxylherderite Mineral Data :

Ask about Hydroxylherderite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Hydroxylherderite Specimen Label here :

Hydroxylherderite

CaBe(PO4)(OH)
Dana No: 41.05.04.02 Strunz No: 08.BA.10
Locality:

Notes: