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Darrellhenryite

Pictures (1 Images total)

Darrellhenryit
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Darrellhenryit
rosa Kristalle von Darrellhenryit neben Cleavelandit, Nová Ves, Semily, Liberec, Tschechische Republik; BB ~ 3 cm
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Tschechien/Südböhmische Region (Jihočeský kraj)/Böhmisch Krumau (Český Krumlov), Bezirk/Neudorf (Nová Ves)
Mineral: Darrellhenryite
Image: 1586374540
License: Usage for Mineralienatlas project only
Darrellhenryit

rosa Kristalle von Darrellhenryit neben Cleavelandit, Nová Ves, Semily, Liberec, Tschechische Republik; BB 3 cm
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-04-08
Locality: Neudorf (Nová Ves) / Böhmisch Krumau (Český Krumlov), Bezirk / Südböhmische Region (Jihočeský kraj) / Tschechien

Collectors Summary

Color rosa
Crystal System trigonal, R3m

Chemism

Chemical formula

NaLiAl2Al6(BO3)3Si6O18(OH)3O

Additional chem. information

Turmalin-Supergruppe

Chemical composition

Aluminium, Lithium, Natrium, Silicium, Bor, Sauerstoff, Wasserstoff

Unit weight: 945.7377268 u; Number of atoms in the formula: 53

Info

Empirical formula:

NaLiAl2Al6(BO3)3Si6O18(OH)3O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.32

3

5.66

1.0079470

3.0238410
Lithium

Li

0.73

1

1.89

6.9412000

6.9412000
Boron

B

3.43

3

5.66

10.8117000

32.4351000
Oxygen

O

52.44

31

58.49

15.9994300

495.9823300
Sodium

Na

2.43

1

1.89

22.9897702

22.9897702
Aluminium

Al

22.82

8

15.09

26.9815382

215.8523056
Silicon

Si

17.82

6

11.32

28.0855300

168.5131800

Strunz 9th edition incl. updates

9.CK.05

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
K: ~[Si6O18]12- sechser-Einfachringe, mit inselartig, komplexe [Anionen]
05:

Lapis Classification

VIII/E.19-007

VIII: SILIKATE
E: Ringsilikate
19: Sechserringe [Si6O18] 12-; Turmalin-Gruppe

Classification by Hölzel

9.CE.130

9: SILICATES
C: Cyclosilicates
E: Tourmaline-Group
1: Alkali-Subgroup 1 and 2 - Dravites and Elbaites

IMA status

anerkannt Juli 2012 - CNMNC Newsletter No. 14, October 2012, page 1282; Mineralogical Magazine, 76, 1281-1288

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Tourmaline supergroup

Optical Properties

Color

rosa

max. Birefringence

0.017
Birefringence chart\! Darrellhenryite title=Birefringence chart Darrellhenryite

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

ω = 1.636(2)

RI value γ / ε

ε = 1.619(2)

Crystallography

Crystal System

trigonal

Class (H-M)

160

Space Group number

3m

Space Group

R3m

Cell parameters a (Å)

15.823

Cell parameters b (Å)

-

Cell parameters c (Å)

7.095

Cell parameters a/b or c/a

0.448

Cell parameters c/b

-

Z

3

Volume (ų)

1538.37

Crystal structure

Struktur bestimmt

X-Ray Powder Diffraction

3.952(54), 3.431(73), 2.925(100), 2.555(90), 2.326(42), 2.029(42), 2.021(42), 1.643(49)
XRD chart Darrellhenryite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

3.038 (berechnet) 3.03 (gemessen)

3.062 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Tschechien/Südböhmische Region (Jihočeský kraj)/Böhmisch Krumau (Český Krumlov), Bezirk/Neudorf (Nová Ves)

Type material

Department of Mineralogy und Petrography of the Moravian Museum, Brno, Czech Republic

Collection number of type material

B10661

Preface

Name from

Der Name ist für Darrell J. Henry, Professor für Geologie an der Louisiana State University, Baton Rouge, USA, einem Experten auf der Mineralogie, Petrologie, Kristallchemie und Nomenklatur der Turmalin-Supergruppe Mineralien.

Author (Name, Year)

Milan Novák, Andreas Ertl, Pavel Povondra, Michaela Vašinová Galiová, Helmut Pristacz, Markus Prem, Gerald Giester, Petr Gadas und Radek Škoda (2012)

References

CNMNC Newsletter No. 14, October 2012, page 1282; Mineralogical Magazine, 76, 1281-1288.

Milan Novák, Andreas Ertl, Pavel Povondra, Michaela Vasinová Galiová, George R. Rossman, Helmut Pristacz, Markus Prem, Gerald Giester, Petr Gadas, and Radek Skoda: Darrellhenryite, Na(LiAl2)Al6(BO3)3Si6O18(OH)3O, a new mineral from the tourmaline supergroup. American Mineralogist Vol. 98 (2013) S. 1886-1892.

IMA group assignments

Other languages

German

Darrellhenryit

English

Darrellhenryite

Russian

Дарреллгенриит

CNMNC (IMA)-Number

IMA 2012-026

CNMNC symbol

Symbol

Dhry

IDs

GUSID (Global unique identifier short form) 5H2OooTqkEWY46Za0mhc9A
GUID (Global unique identifier) A28E7DE4-EA84-4590-98E3-A65AD2685CF4
Database ID 7437