Hurlbutite Mineral Data

Hurlbutite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Dakota Matrix
[Newest Minerals] [Rare Minerals] [Cabinet Specimens] [About Us] [Image Gallery]
Dakota Matrix Minerals
Updated weekly, for the collector, educator, and researcher since 1996
Extensive Inventory of very Rare Minerals. Visa and Mastercard are Welcome


General Hurlbutite Information

Help on Chemical Formula: Chemical Formula: CaBe2(PO4)2
Help on Composition: Composition: Molecular Weight = 248.05 gm
   Calcium     16.16 %  Ca   22.61 % CaO
   Beryllium    7.27 %  Be   20.17 % BeO
   Phosphorus  24.97 %  P    57.23 % P2O5
   Oxygen      51.60 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaBe2(PO4)2
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1952
Help on Locality: Locality: G. E. Smith mine, Newport, Sullivan County, New Hampshire, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Cornelius S. Hurlbut, Jr. (1906-), professor of mineralogy, Harvard University, Cambridge.
Help on Name Pronunciation: Name Pronunciation: Hurlbutite + Pronunciation Say HURLBUTITE
Help on Synonym: Synonym: ICSD 6189
  PDF 34-1441
 

Hurlbutite Image

Click Here for Larger Hurlbutite Image in a New Browser Window Images:
Click Here for Larger Hurlbutite Image

Hurlbutite   Roscherite

Comments: White, round crystal clusters of hurlbutite on reddish brown roscherite.
Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Hurlbutite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.945:1:0.8879
Help on Cell Dimensions: Cell Dimensions: a = 8.299, b = 8.782, c = 7.798, Z = 4; beta = 90.5° V = 568.31 Den(Calc)= 2.90
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.67(1), 2.78(0.9), 3.03(0.9),
Click Here for Large Hurlbutite Structure Window 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


Lindbloom J T , Gibbs G V , Ribbe P H , American Mineralogist , 59 (1974) p.1267-1271, The crystal structure of hurlbutite: A comparison with danburite and anorthite

 

Physical Properties of Hurlbutite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, Greenish white, Yellow.
Help on Density: Density: 2.877
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: white
 

Optical Properties of Hurlbutite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.04 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.031 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2069,KPDmeas= 0.2086,KC= 0.2006
Ncalc = 1.58
Help on Optical Data: Optical Data: Biaxial (-), a=1.595, b=1.601, g=1.604, bire=0.0090, 2V(Calc)=70, 2V(Meas)=70. Dispersion r > v weak.
 

Calculated Properties of Hurlbutite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.85 gm/cc
note: Specific Gravity of Hurlbutite =2.90 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.07
Boson Index = 0.93
Help on Photoelectric: Photoelectric: PEHurlbutite = 3.27 barns/electron
U=PEHurlbutite x rElectron Density= 9.32 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hurlbutite is Not Radioactive
 

Hurlbutite Classification
Help on Dana Class: Dana Class: 38.03.06.01 (38)Anhydrous Phosphates, etc
  (38.03)(A+ B++)3 (XO4)2
  (38.03.06)Dana Group
 
38.03.06.01 Hurlbutite CaBe2(PO4)2 P 21/a 2/m
Help on Strunz Class: Strunz Class: 08.AA.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AA -With small cations (some also with larger ones)
 
08.AA.15 Hurlbutite CaBe2(PO4)2 P 21/a 2/m
 

Other Hurlbutite Information
Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Hurlbutite :
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
15 - WWW-MINCRYST

Search for Hurlbutite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [bing] [GeoScienceWorld] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Hurlbutite :

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

John Betts Fine Minerals

Lapis Mineral Journal

Mineral News

UV Tools

Wrights Rock Shop

Translate Hurlbutite Mineral Data :

Ask about Hurlbutite 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 Espaņol

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

Hurlbutite

CaBe2(PO4)2
Dana No: 38.03.06.01 Strunz No: 08.AA.15
Locality:

 

Notes: