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Childrenite (Childrenit)

Pictures (35 Images total)

Childrenit
Views (File:
1190635025
): 1138
Childrenit
mit Roscherit (analysiert); Größe: 2.7 x 2.2 x 2.3 cm; Fundort: Taquaral, Itinga, Minas Gerais, Brasilien
Copyright: Fabre Minerals; Contribution: Hg
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Jequitinhonha, Fluss/Itinga/Taquaral
Mineral: Childrenite
Image: 1190635025
Rating: 10 (votes: 1)
License: Usage for Mineralienatlas project only
Childrenit

mit Roscherit (analysiert); Größe: 2.7 x 2.2 x 2.3 cm; Fundort: Taquaral, Itinga, Minas Gerais, Brasilien
Copyright: Fabre Minerals
Contribution: Hg 2007-09-24
Locality: Taquaral / Itinga / Jequitinhonha, Fluss / Minas Gerais / Südosten (Região Sudeste) / Brasilien
Childrenit
Views (File:
1190635192
): 2255
Childrenit
mit Roscherit (analysiert); Größe: 5.4 x 4.9 x 2.8 cm; Fundort: Taquaral, Itinga, Minas Gerais, Brasilien
Copyright: Fabre Minerals; Contribution: Hg
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Jequitinhonha, Fluss/Itinga/Taquaral
Mineral: Childrenite
Image: 1190635192
Rating: 9 (votes: 2)
License: Usage for Mineralienatlas project only
Childrenit

mit Roscherit (analysiert); Größe: 5.4 x 4.9 x 2.8 cm; Fundort: Taquaral, Itinga, Minas Gerais, Brasilien
Copyright: Fabre Minerals
Contribution: Hg 2007-09-24
Locality: Taquaral / Itinga / Jequitinhonha, Fluss / Minas Gerais / Südosten (Região Sudeste) / Brasilien
Childrenit
Views (File:
1275501365
): 1030
Childrenit
Größe: 5,5 x 5,3 x 2,4 cm, Fundort: Galiléia, Doce-Tal, Minas Gerais, Brasilien
Copyright: Dan Weinrich; Contribution: thdun5
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Doce-Tal/Galiléia
Mineral: Childrenite
Image: 1275501365
Rating: 7.5 (votes: 2)
License: Usage for Mineralienatlas project only
Childrenit

Größe: 5,5 x 5,3 x 2,4 cm, Fundort: Galiléia, Doce-Tal, Minas Gerais, Brasilien
Copyright: Dan Weinrich
Contribution: thdun5 2010-06-02
Locality: Galiléia / Doce-Tal / Minas Gerais / Südosten (Região Sudeste) / Brasilien
Сhildrenite
Views (File:
1519620289
): 878
Сhildrenite
Сhildrenite specimen, from Poço d'Antas claim, Piauí Valley, Taquaral, Itinga, Minas Gerais, Brazil; Size 40 х 37 х 31 mm
Copyright: pegmatite; Contribution: pegmatite
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Jequitinhonha, Fluss/Itinga/Taquaral/Piauí-Tal/Lavra do Poco d'Antas
Mineral: Childrenite
Image: 1519620289
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Сhildrenite

Сhildrenite specimen, from Poço d'Antas claim, Piauí Valley, Taquaral, Itinga, Minas Gerais, Brazil; Size 40 х 37 х 31 mm
Copyright: pegmatite
Contribution: pegmatite 2018-02-26
Locality: Lavra do Poco d'Antas / Piauí-Tal / Taquaral / Itinga / Jequitinhonha, Fluss / Minas Gerais / Südosten (Região Sudeste) / Brasilien
Childrenit
Views (File:
1190635104
): 1710, Rating: 7
Childrenit
mit Roscherit (analysiert); Größe: 5.4 x 2.3 x 2.5 cm; Fundort: Taquaral, Itinga, Minas Gerais, Brasilien
Copyright: Fabre Minerals; Contribution: Hg
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Jequitinhonha, Fluss/Itinga/Taquaral
Mineral: Childrenite
Image: 1190635104
Rating: 7 (votes: 4)
License: Usage for Mineralienatlas project only
Childrenit

mit Roscherit (analysiert); Größe: 5.4 x 2.3 x 2.5 cm; Fundort: Taquaral, Itinga, Minas Gerais, Brasilien
Copyright: Fabre Minerals
Contribution: Hg 2007-09-24
Locality: Taquaral / Itinga / Jequitinhonha, Fluss / Minas Gerais / Südosten (Região Sudeste) / Brasilien
Childrenit
Views (File:
1274563915
): 2565, Rating: 7
Childrenit
Größe: 5 x 2,5 x 0,9 cm, Fundort: Linopolis, Laranjeiras, Doce-Tal, Minas Gerais, Brasilien
Copyright: Dan Weinrich; Contribution: thdun5
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Doce-Tal/Galiléia/Laranjeiras/Linópolis (Linopolis)
Mineral: Childrenite
Image: 1274563915
Rating: 7 (votes: 4)
License: Usage for Mineralienatlas project only
Childrenit

Größe: 5 x 2,5 x 0,9 cm, Fundort: Linopolis, Laranjeiras, Doce-Tal, Minas Gerais, Brasilien
Copyright: Dan Weinrich
Contribution: thdun5 2010-05-22
Locality: Linópolis (Linopolis) / Laranjeiras / Galiléia / Doce-Tal / Minas Gerais / Südosten (Região Sudeste) / Brasilien

You find additional Childrenit specimen at the Geolitho Museum

Collectors Summary

Color weiß, gelblichbraun, bräunlichschwarz
Streak color weiß
Lustre Glasglanz, Harzglanz
Hardness (Mohs) 5
Solubility +++ Säuren
Crystal System orthorhombisch, Bba2

Chemism

Chemical formula

Fe2+Al(PO4)(OH)2·H2O

Chemical composition

Aluminium, Eisen, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 229.8282974 u; Number of atoms in the formula: 14

Info

Empirical formula:

FeAl(PO4)(OH)2·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.75

4

28.57

1.0079470

4.0317880
Oxygen

O

48.73

7

50.00

15.9994300

111.9960100
Aluminium

Al

11.74

1

7.14

26.9815382

26.9815382
Phosphorus

P

13.48

1

7.14

30.9737612

30.9737612
Iron

Fe

24.30

1

7.14

55.8452000

55.8452000

Analysis wt%

CaO : 0.65, FeO : 28.56, MnO : 3.11, Al2O3 : 21.43, P2O5 : 29.92, H2O : 15.80 (Ref: Min.Mitt.35)

Strunz 9th edition incl. updates

8.DD.20

8: Phosphate, Arsenate, Vanadate
D: Phosphate, mit weiteren Anionen, mit H2O
D: Mit ausschließlich mittelgroßen [Kationen], (OH, etc.):RO4 = 2:1
20:Childrenit-Gruppe

Lapis Classification

VII/D.14-010

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
D: Wasserhaltige Phosphate, mit fremden Anionen
14: Mittelgroße Kationen: Cu-Zn-Mn-Al-Fe

Classification by Hölzel

8.DG.100

8: PHOSPHATES ARSENATES VANADATES
D: Phosphates (+Anions +Water)
G: TurquoiseChildrenite-Group P/OH=0.5

Dana 8th edition

42.07.01.01

42: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
07: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen where (AB)5 (XO4)3 Zq · x(H2O)
01: Childrenite Group

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß, gelblichbraun, bräunlichschwarz

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend

Lustre

Glasglanz, Harzglanz

max. Birefringence

0.042
Birefringence chart\! Childrenite title=Birefringence chart Childrenite

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

1.649

RI value β

1.683

RI value γ / ε

1.691

Ri mean

1.674

2V angle

Biaxial (-) 43°~

Orientation

X = b; Y = a; Z = c; Y ^ c = 4° – 8°

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

41

Space Group

Bba2

Cell parameters a (Å)

10.395

Cell parameters b (Å)

13.394

Cell parameters c (Å)

6.918

Cell parameters a/b or c/a

0.776

Cell parameters c/b

0.516

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volumne (ų)

963.197

X-Ray Powder Diffraction

5.27(40),
4.40(30),
3.54(20),
3.39(30),
2.81(100),
2.42(40),
2.39(30),
1.522(40)
XRD chart Childrenite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5

VHN (Hardness Vickers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.18 - 3.25 / Durchschnittlich = 3.21

3.17 ( ρ calc. Mineralienatlas )

Radioactivity

keine bekannt

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

UK/England/Devon Co./Tavistock District/Tavistock Hamlets/Tavistock Canal

Preface

Author (Name, Year)

Brooke, 1823

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 109

Other languages

German

Childrenit

Spanish

Childrenita

French

Childrenite

English

Childrenite

Russian

Чилдренит

Traditional Chinese

磷鋁鐵石

Simplified Chinese

磷铝铁石

Japanese

ﾁﾙﾄﾞﾚﾝ石

CNMNC symbol

Symbol

Chd

Locations with GPS information