Tiptopite Mineral Data

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


B and L Minerals
[New Items] [Specials] [Login] [Register] [Auction Items]
B & L Minerals, Fine Mineral specimens for sale for collectors of all levels


General Tiptopite Information

Help on Chemical Formula: Chemical Formula: K2(Na,Ca)2Li3Be6(PO4)6(OH)2•(H2O)
Help on Composition: Composition: Molecular Weight = 829.47 gm
   Potassium    9.43 %  K    11.36 % K2O
   Sodium       4.16 %  Na    5.60 % Na2O
   Lithium      2.51 %  Li    5.40 % Li2O
   Calcium      2.42 %  Ca    3.38 % CaO
   Beryllium    6.52 %  Be   18.09 % BeO
   Phosphorus  22.40 %  P    51.34 % P2O5
   Hydrogen     0.49 %  H     4.34 % H2O
   Oxygen      52.08 %  O
              ______        ______ 
              100.00 %       99.52 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2Na1.5Ca0.5Li3Be6(PO4)6(OH)2•(H2O)
Help on Environment: Environment: Pegmatite mineral.
Help on IMA Status: IMA Status: Approved IMA 1985
Help on Locality: Locality: Tip Top mine, Custer, Custer County, South Dakota, USA Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Tiptopite + Pronunciation Say TIPTOPITE
Help on Synonym: Synonym: ICSD 202308
  PDF 38-374
 

Tiptopite Image

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

Tiptopite   Montgomeryite

Comments: Clear, acicular crystals of tiptopite with red montgomeryite.
Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals
Click Here for Larger Tiptopite Image in a New Browser Window Images:
Click Here for Larger Tiptopite Image

Tiptopite   Englishite   Montgomeryite

Comments: Red montgomeryite lath-like crystals to 1mm in 2mm rosettes associated with clear, acicular sprays of tiptopite to 0.75mm and white cottonball-like crystals of englishite to 0.2mm.
Location: Tip Top mine, Custer Co., South Dakota, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Tiptopite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:0.40257
Help on Cell Dimensions: Cell Dimensions: a = 11.655, c = 4.692, Z = 1; V = 551.97 Den(Calc)= 2.50
Help on Crystal System: Crystal System: Hexagonal - PyramidalH-M Symbol (6) Space Group: P 63
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.966(1), 2.525(0.9), 2.348(0.7),
Click Here for Large Tiptopite 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


Peacor D R , Rouse R C , Ahn J-H , American Mineralogist , 72 (1987) p.816-820, Crystal structure of tiptopite, a framework beryllophosphate isotypic with basic, cancrinite, Note: U(1,2) for OH5 has been altered to match symmetry constraints.

 

Physical Properties of Tiptopite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless.
Help on Density: Density: 2.65
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Tiptopite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.064 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.222,KPDmeas= 0.2094,KC= 0.2087
Ncalc = 1.52 - 1.55
Help on Optical Data: Optical Data: Uniaxial (+), w=1.551, e=1.559, bire=0.0080.
 

Calculated Properties of Tiptopite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.60 gm/cc
note: Specific Gravity of Tiptopite =2.65 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PETiptopite = 2.47 barns/electron
U=PETiptopite x relectron= 6.44 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 133.63 (Gamma Ray American Petroleum Institute Units)
Concentration of Tiptopite per GRapi unit = 0.75 (%)

Estimated Radioactivity from Tiptopite - barely detectable

 

Tiptopite Classification
Help on Dana Class: Dana Class: 42.06.11.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.06)where (AB)2 (XO4) Zq · x(H2O)
  (42.06.11)Dana Group
 
42.06.11.01 Tiptopite K2(Na,Ca)2Li3Be6(PO4)6(OH)2•(H2O) P 63 6
Help on Strunz Class: Strunz Class: 08.DA.25 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DA -With small (and occasionally larger) cations
 
08.DA.25 Tiptopite K2(Na,Ca)2Li3Be6(PO4)6(OH)2•(H2O) P 63 6
 

Other Tiptopite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Tiptopite :
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 Tiptopite using:

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

Visit our Advertisers for Tiptopite :

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 Tiptopite Mineral Data :

Ask about Tiptopite 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 Tiptopite Specimen Label here :

Tiptopite

K2(Na,Ca)2Li3Be6(PO4)6(OH)2•(H2O)
Dana No: 42.06.11.01 Strunz No: 08.DA.25
Locality:

 

Notes: