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Capranicaite

Pictures (5 Images total)

Capranicait
Views (Image: 1312530822): 679
Capranicait

Größe: 0,45 mm; Fundort: Capranica, Lago di Vico, Viterbo, Latium, Italien

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2011-08-05
Locality: Capranica / Ronciglione / Vicosee (Lago di Vico) / Viterbo, Provinz / Latium (Lazio), Region / Italien
Capranicait
Views (Image: 1312530886): 1055
Capranicait

Größe: 1,15 mm; Fundort: Capranica, Lago di Vico, Viterbo, Latium, Italien

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2011-08-05
Locality: Capranica / Ronciglione / Vicosee (Lago di Vico) / Viterbo, Provinz / Latium (Lazio), Region / Italien
Capranicait
Views (Image: 1300377127): 628
Capranicait

Kristallgröße: 0,4 mm, Fundort: Capranica, Lago di Vico, Viterbo, Latium, Italien

Copyright: Luigi Mattei
Contribution: thdun5 2011-03-17
Locality: Capranica / Ronciglione / Vicosee (Lago di Vico) / Viterbo, Provinz / Latium (Lazio), Region / Italien
Capranicait
Views (Image: 1300377156): 545
Capranicait

Kristallgröße: 0,5 mm, Fundort: Capranica, Lago di Vico, Viterbo, Latium, Italien

Copyright: Luigi Mattei
Contribution: thdun5 2011-03-17
Locality: Capranica / Ronciglione / Vicosee (Lago di Vico) / Viterbo, Provinz / Latium (Lazio), Region / Italien
Capranicait
Views (Image: 1312446492): 591
Capranicait

Größe: 0,24 mm, Fundort: Capranica, Lago di Vico, Viterbo, Latium, Italien

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2011-08-04
Locality: Capranica / Ronciglione / Vicosee (Lago di Vico) / Viterbo, Provinz / Latium (Lazio), Region / Italien

Collectors Summary

Color farblos
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) <6
Cleavages gut (001)
Solubility nicht beobachtet
Crystal System monoklin, P21/n
Morphology dünne tafelige Kristalle nicht größer als 0.1 mm

Chemism

Chem­ical formula

KCaNaAl4B4Si2O18

Chem­ical com­po­si­tion

Aluminium, Calcium, Natrium, Silicium, Bor, Kalium, Sauerstoff

Unit weight: 597.500233 u; Number of atoms in the formula: 31

Info

Empirical formula:

KCaNaAl4B4Si2O18

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Boron

B

7.24

4

12.90

10.8117000

43.2468000

Oxygen

O

48.20

18

58.06

15.9994300

287.9897400

Sodium

Na

3.85

1

3.23

22.9897702

22.9897702

Aluminium

Al

18.06

4

12.90

26.9815382

107.9261528

Silicon

Si

9.40

2

6.45

28.0855300

56.1710600

Potassium

K

6.54

1

3.23

39.0983100

39.0983100

Calcium

Ca

6.71

1

3.23

40.0784000

40.0784000

Anal­y­sis wt%

SiO2 : 20.70, B2O3 : 22.90, Al2O3 : 32.91, CaO : 11.04, Na2O : 4.08, K2O : 5.36, Cs2O : 2.20 (Ref: Mineralogical Magazine 2011)

Strunz 9th edi­tion incl. updates

9.DG.100

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
G: Ketten- und Bandsilikate mit 3-periodischen Einfach- und Mehrfachketten
100:

Lapis Clas­sifica­tion

VIII/F.03-090

VIII: SILIKATE
F: Ketten- und Bandsilikate
3: Zweierketten [Si2O6] 4-

Clas­sifica­tion by Hölzel

9.DK.380

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
K: With branched chains - Sapphirine-Supergroup
3: Rhönite-Group

Dana 8th edi­tion

65.01.12

65: Inosilicate Minerals
01: Inosilicates Inosilicate Single-Width Unbranched Chains, W=1 with chains P=2

IMA sta­tus

anerkannt - Neue Mineralien, IMA WEB-Seite Feb. 2010

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

Lus­tre

Glasglanz

max. Birefrin­gence

0.049

Birefringence chart\! Capranicaite title=Birefringence chart Capranicaite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.495

RI value β

1.543

RI value γ / ε

1.544

Ri mean

1.527

2V angle

Biaxial (-) 7.3° (gemessen); 16.0° (berechnet)

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/n

Cell param­e­ters a (Å)

4.851

Cell param­e­ters b (Å)

16.616

Cell param­e­ters c (Å)

20.545

Cell param­e­ters a/b or c/a

0.292

Cell param­e­ters c/b

1.236

Cell param­e­ters α

90°

Cell param­e­ters β

90.17

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

1656.006

Kristall struc­ture

Neuer Strukturtyp; Struktur bestimmt

X-Ray Pow­der Diffrac­tion

4.104(90), 3.424(83), 3.234(100), 3.119(32), 2.425(31), 2.405(37), 2.184(38), 1.564(30)

XRD chart Capranicaite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Morphol­ogy

dünne tafelige Kristalle nicht größer als 0.1 mm

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

<6

VHN (Hard­ness Vick­ers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.41 berechnet

2.396 ( ρ calc. Mineralienatlas )

Cleav­ages

gut (001)

Tenac­ity

spröde

Insta­bil­ity

nicht beobachtet

Preface

Author (Name, Year)

Athos Maria Callegari et al., 2011

References

A. M. Callegari, M. Boiocchi, F. Bellatreccia, E. Caprilli, O. Medenbach, A. Cavallo: Capranicaite, (K,{square})(Ca,Na)Al4B4Si2O18: a new inosilicate from Capranica, Italy, with a peculiar topology of the periodic single chain [Si2O6]. Mineralogical Magazine Vol. 75 (2011) S.33-43.

Neue Mineralien, IMA WEB-Seite Feb. 2010 - [anerkannt, Formel, Kristalldaten]

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Capranicaite

KCaNaAl4B4Si2O18

monoklin : 2/m : P21/n

9.DG.100

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Magnesiocarpholite

MgAl2Si2O6(OH)4

orthorhombisch : mmm : Ccca

VIII/F.03-010

Ferrocarpholite

(Fe2+,Mg)Al2Si2O6(OH)4

orthorhombisch : mmm : Ccca

VIII/F.03-020

Carpholite

MnAl2Si2O6(OH)4

orthorhombisch : mmm : Ccca

VIII/F.03-030

Vanadiocarpholite

Mn2+V3+Al(Si2O6)(OH)4

orthorhombisch : mmm : Ccca

VIII/F.03-032

Potassiccarpholite

K(Mn2+,Li)2Al4Si4O12(OH,F)8

orthorhombisch : mmm : Ccca

VIII/F.03-035

Balipholite

BaMg2LiAl3Si4O12(OH,F)8

orthorhombisch : mmm : Ccca

VIII/F.03-040

Punkaruaivite

LiTi2[Si4O11(OH)](OH)2·H2O

monoklin : 2/m : C2/c

VIII/F.03-045

Yegorovite

Na4[Si2O4(OH)2]2·7H2O

monoklin : 2/m : P21/c

VIII/F.03-048

Lorenzenite

Na2Ti2Si2O9

orthorhombisch : mmm : Pbcn

VIII/F.03-050

Kukisvumite

Na6ZnTi4O4(SiO3)8·4H2O

orthorhombisch : mmm : Pccn

VIII/F.03-055

'Manganokukisvumite'

Na6MnTi4Si8O28·4(H2O)

VIII/F.03-058

Lintisite

Na3LiTi2O2(SiO3)4·2H2O

monoklin : 2/m : C2/c

VIII/F.03-060

Eliseevite

Na1.5Li{Ti2O2[Si4O10.5(OH)1.5]}·2H2O

monoklin : 2/m : C2/c

VIII/F.03-065

Vinogradovite

(Na,Ca,K)5(Ti,Nb)4(Si6BeAl)O26·3H2O

monoklin : 2/m : C2/c

VIII/F.03-070

Paravinogradovite

Na1-2(Ti4+,Fe3+)4[(OH)4|AlSi3O10|(Si2O6)2]·H2O

triklin : 1 : P1

VIII/F.03-080

Capranicaite

KCaNaAl4B4Si2O18

monoklin : 2/m : P21/n

VIII/F.03-090

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Rhönite

Ca2(Mg,Fe2+,Fe3+,Ti)6(Si,Al)6O20

triklin : 1 : P1

9.DK.300

Serendibite

Ca2(Mg,Al)6(Si,Al,B)6O20

triklin : 1 : P1

9.DK.310

Welshite

Ca4[Mg9Sb5+3]O4[Si6Be3AlFe3+2O36]

triklin : 1 : P1

9.DK.320

Høgtuvaite

(Ca,Na)2(Fe2+,Fe3+,Ti4+)6[O2|Be(Si,Al)5O18]

9.DK.330

Makarochkinite

(Ca,Na,Mn)2(Fe2+,Fe3+,Ti,Mg)6[O2|(Si,Be,Al)6O18]

triklin : 1 : P1

9.DK.340

Dorrite

Ca4[Mg3Fe3+9]O4[Si3Al8Fe3+O36]

triklin : 1, 1 : P1, P1

9.DK.350

Capranicaite

KCaNaAl4B4Si2O18

monoklin : 2/m : P21/n

9.DK.380

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Capranicaite

KCaNaAl4B4Si2O18

monoklin : 2/m : P21/n

65.01.12

IMA Number

IMA 2009-086

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Capranicait
Google-Bilder-Suche - search for: Capranicait
Mineralogisch-Petrographisches-Institut Hamburg - search for: Capranicait

English pages

Mindat - search for: Capranicaite
Webmineral - search for:Capranicaite
Handbook-of-Mineralogy - search for: Capranicaite
RRUFF - Raman, XRD and other mineral data - search for: Capranicaite
RRUFF - References and PDF downloads - search for: Capranicaite
American-Mineralogist-Crystal-Structure-Database - search for: Capranicaite
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German pages

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