Kingsmountite Mineral Data (original) (raw)

General Kingsmountite Information

Help on Chemical Formula: Chemical Formula:

(Ca,Mn++)4(Fe++,Mn++)Al4(PO4)6(OH)4•12(H2O)

Help on Composition: Composition:

Molecular Weight = 1,204.33 gm

Calcium 10.65 % Ca 14.90 % CaO

Magnesium 0.20 % Mg 0.33 % MgO

Manganese 6.39 % Mn 8.25 % MnO

Aluminum 8.74 % Al 16.51 % Al2O3

Iron 3.71 % Fe 3.58 % FeO / 1.33 % Fe2O3

Phosphorus 15.43 % P 35.36 % P2O5

Hydrogen 2.28 % H 20.34 % H2O

Oxygen 52.61 % O

______ ______

100.00 % 100.60 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Ca3.2Mn2+0.9Fe2+0.6Mn2+0.5Mg0.1Al3.9Fe3+0.2(PO4)6(OH)4�11.6(H2O)

Help on Environment: Environment:

Secondary mineral from the oxidation of primary phosphates be descending oxidizing ground water in complex granite pegmatites.

Help on IMA Status: IMA Status:

Approved IMA 1979

Help on Locality: Locality:

Foote Quarry, Kings Mountain, Cleveland County, North Carolina, USA. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the locality.

Help on Name Pronunciation: Name Pronunciation:

Kingsmountite + Pronunciation Say KINGSMOUNTITE

Kingsmountite Image

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

Kingsmountite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.41:1:0.2558

Help on Cell Dimensions: Cell Dimensions:

a = 10.029, b = 24.46, c = 6.258, Z = 2; beta = 91.16° V = 1,534.83 Den(Calc)= 2.61

Help on Crystal System: Crystal System:

Monoclinic - SphenoidalH-M Symbol (2) Space Group: C 2

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 5.15(1), 2.624(0.6), 12.28(0.5),

Physical Properties of Kingsmountite

Help on Color: Color:

Light brown, Pearl white.

Help on Density: Density:

2.51

Help on Diaphaneity: Diaphaneity:

Transparent

Help on Habit: Habit:

Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).

Help on Habit: Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Help on Habit: Habit:

Spherical - Spherical, rounded aggregates.

Help on Hardness: Hardness:

2.5 - Finger Nail

Help on Luster: Luster:

Pearly

Help on Streak: Streak:

white

Optical Properties of Kingsmountite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2221,KPDmeas= 0.2309,KC= 0.2272
Ncalc = 1.57 - 1.59

Help on Optical Data: Optical Data:

Biaxial (-), a=1.575, b=1.581, g=1.583, bire=0.0080, 2V(Calc)=58, 2V(Meas)=62.

Calculated Properties of Kingsmountite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.52 gm/cc
note: Specific Gravity of Kingsmountite =2.51 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0013879716
Boson Index = 0.9986120284

Help on Photoelectric: Photoelectric:

PEKingsmountite = 4.99 barns/electron
U=PEKingsmountite x rElectron Density= 12.59 barns/cc.

Help on Radioactivity: Radioactivity:

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

Kingsmountite Classification

Help on Dana Class: Dana Class:

42.11.08.02 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.11)where (AB)4 (XO4)3 Zq � x(H2O)

(42.11.08)Montgomeryite group

42.11.08.01 Montgomeryite Ca4MgAl4(PO4)6(OH)4•12(H2O) C 2/c 2/m

42.11.08.02 Kingsmountite (Ca,Mn)4(Fe,Mn)Al4(PO4)6(OH)4•12(H2O) C 2 2

42.11.08.03 Calcioferrite Ca4Fe(Fe,Al)4(PO4)6(OH)4•12(H2O) C 2 2

42.11.08.04 Zodacite Ca4MnFe4(PO4)6(OH)4•12(H2O) C 2/c,Cc Mono

42.11.08.05 Angastonite! CaMgAl2(PO4)2(OH)4?7H2O P1 1

Help on Strunz Class: Strunz Class:

08.DH.25 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DH -With large and medium-sized cations, (OH, etc.):RO4 < 1:1

08.DH.25 Calcioferrite Ca4Fe(Fe,Al)4(PO4)6(OH)4•12(H2O) C 2 2

08.DH.25 Kingsmountite (Ca,Mn)4(Fe,Mn)Al4(PO4)6(OH)4•12(H2O) C 2 2

08.DH.25 Montgomeryite Ca4MgAl4(PO4)6(OH)4•12(H2O) C 2/c 2/m

08.DH.25 Zodacite Ca4MnFe4(PO4)6(OH)4•12(H2O) C 2/c,Cc Mono

Other Kingsmountite Information

Help on References: References:

NAME( AntBidBlaNic4) 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 Kingsmountite :
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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Ask about Kingsmountite here :
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Print or Cut-and-Paste your Kingsmountite Specimen Label here :

Kingsmountite

(Ca,Mn++)4(Fe++,Mn++)Al4(PO4)6(OH)4•12(H2O)
Dana No: 42.11.08.02 Strunz No: 08.DH.25
Locality:

Notes: