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Herderite

Pictures (29 Images total)

Herderit
Views (File:
1265767283
): 2594
Herderit
Größe: 40x24x20 mm; Fundort: Sassi, Indus-Tal, Gilgit-Distrikt, Nordgebiete, Pakistan
Copyright: Fabre Minerals; Contribution: Philip Blümner
Location: Pakistan/Gilgit-Baltistan (Nordgebiete; Northern Areas)/Gilgit, Distrikt/Indus-Tal/Sassi (Sasi)
Mineral: Herderite
Image: 1265767283
Rating: 7.5 (votes: 2)
License: Usage for Mineralienatlas project only
Herderit

Größe: 40x24x20 mm; Fundort: Sassi, Indus-Tal, Gilgit-Distrikt, Nordgebiete, Pakistan
Copyright: Fabre Minerals
Contribution: Philip Blümner 2010-02-10
Locality: Sassi (Sasi) / Indus-Tal / Gilgit, Distrikt / Gilgit-Baltistan (Nordgebiete; Northern Areas) / Pakistan
Herderite
Views (File:
1245425640
): 2917
Herderite
Shigar Valley, Scardu District, Northern Areas, Pakistan; Size 90 mm x 75 mm x 53 mm
Copyright: pegmatite; Contribution: pegmatite
Collection: pegmatite
Location: Pakistan/Gilgit-Baltistan (Nordgebiete; Northern Areas)/Skardu, Distrikt/Shigar-Tal
Mineral: Herderite
Image: 1245425640
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Herderite

Shigar Valley, Scardu District, Northern Areas, Pakistan; Size 90 mm x 75 mm x 53 mm
Collection: pegmatite
Copyright: pegmatite
Contribution: pegmatite 2009-06-19
Locality: Shigar-Tal / Skardu, Distrikt / Gilgit-Baltistan (Nordgebiete; Northern Areas) / Pakistan
Herderit (Doppelender), Quarz
Views (File:
1352590203
): 2115
Herderit (Doppelender), Quarz
FO.: Pegmatit Alto de Chaga, Quixaba, Município Frei Martinho (Landkreis), Bundesstaat Paraíba, Brasilien (Nord-Osten) / Stufengröße: 4,7 x 1,7 x 1,2 cm
Copyright: Hrouda; Contribution: Hrouda
Collection: Hrouda
Location: Brasilien/Nordosten (Região Nordeste)/Paraíba/Frei Martinho/Quixaba
Mineral: Herderite
Image: 1352590203
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Herderit (Doppelender), Quarz

FO.: Pegmatit Alto de Chaga, Quixaba, Município Frei Martinho (Landkreis), Bundesstaat Paraíba, Brasilien (Nord-Osten) / Stufengröße: 4,7 x 1,7 x 1,2 cm
Collection: Hrouda
Copyright: Hrouda
Contribution: Hrouda 2012-11-10
Locality: Quixaba / Frei Martinho / Paraíba / Nordosten (Região Nordeste) / Brasilien
Herderit
Views (File:
1102286703
): 5445, Rating: 7
Herderit
bis 15 mm große, flächenreiche xx; Fundort: Quixaba Pegmatit, Marinho, Paraiba, Brasilien
Copyright: berthold; Contribution: Mineralienatlas
Location: Brasilien/Nordosten (Região Nordeste)/Paraíba/Frei Martinho/Quixaba/Quixaba-Pegmatit
Mineral: Herderite
Image: 1102286703
Rating: 7 (votes: 10)
License: Usage for Mineralienatlas project only
Herderit

bis 15 mm große, flächenreiche xx; Fundort: Quixaba Pegmatit, Marinho, Paraiba, Brasilien
Copyright: berthold
Contribution: Mineralienatlas 2004-12-05
Locality: Quixaba-Pegmatit / Quixaba / Frei Martinho / Paraíba / Nordosten (Região Nordeste) / Brasilien
Herderit
Views (File:
1107638856
): 3019, Rating: 7.25
Herderit
Größe: 31x27x29 mm; Fundort: Corrego Frio, Linópolis, Laranjeiras, Galilea, Docetal, Minas Gerais, Brasilien
Copyright: Fabre Minerals; Contribution: Mineralienatlas
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Doce-Tal/Galiléia/Laranjeiras/Linópolis (Linopolis)/Corrego Frio
Mineral: Herderite
Image: 1107638856
Rating: 7.25 (votes: 4)
License: Usage for Mineralienatlas project only
Herderit

Größe: 31x27x29 mm; Fundort: Corrego Frio, Linópolis, Laranjeiras, Galilea, Docetal, Minas Gerais, Brasilien
Copyright: Fabre Minerals
Contribution: Mineralienatlas 2005-02-05
Locality: Corrego Frio / Linópolis (Linopolis) / Laranjeiras / Galiléia / Doce-Tal / Minas Gerais / Südosten (Região Sudeste) / Brasilien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color weiß, gelblich weiß, grünlichweiß
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 5.25
Solubility +++ Säuren, - schwache Oxal-, CH3COOH- oder Zitronen-Säure
Crystal System monoklin, P21/a
Morphology Einzelkristalle, selten radialstrahlige Aggregate

Chemism

Chemical formula

CaBe(PO4)F

Chemical composition

Beryllium, Calcium, Fluor, Phosphor, Sauerstoff

Unit weight: 163.06046675 u; Number of atoms in the formula: 8

Info

Empirical formula:

CaBe(PO4)F

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Beryllium

Be

5.53

1

12.50

9.0121823

9.0121823
Oxygen

O

39.25

4

50.00

15.9994300

63.9977200
Fluorine

F

11.65

1

12.50

18.9984033

18.9984033
Phosphorus

P

19.00

1

12.50

30.9737612

30.9737612
Calcium

Ca

24.58

1

12.50

40.0784000

40.0784000

Analysis wt%

CaO : 33.65, BeO : 15.04, P2O5 : 43.43, H2O : 0.61, F : 8.93 (Ref: Dana, 7th ed. 2)

Strunz 9th edition incl. updates

8.BA.10

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
A: Mit kleinen und mittelgroßen [Kationen]
10:Herderit-Gruppe

Lapis Classification

VII/B.01-010

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
1: Sehr kleine Kationen: Li-Be

Classification by Hölzel

8.BA.310

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
A: Phosphates, C Be,Li
3: Be-Phosphates, C large Herderite-Group

Dana 8th edition

41.05.04.01

41: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
05: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen where (A B)2 (XO4) Zq
04: Herderite Group

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Gadolinite supergroup  ⇒ Herderite group  ⇒ Herderite subgroup

Optical Properties

Color

weiß, gelblich weiß, grünlichweiß

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

Lustre

Glasglanz

max. Birefringence

0.028
Birefringence chart\! Herderite title=Birefringence chart Herderite

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

1.592

RI value β

1.612

RI value γ / ε

1.620

Ri mean

1.608

2V angle

Biaxial (-) 71°~

Optical Data Luminescence

Color LW-UV (365nm)

  

gelblich weiß

Color SW-UV (254nm)

  

gelblich weiß

SW-UV Other Colors

    

blau, violettblau

Most Common Activator

Eu2+

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/a

Cell parameters a (Å)

4.80

Cell parameters b (Å)

7.68

Cell parameters c (Å)

9.80

Cell parameters a/b or c/a

0.625

Cell parameters c/b

1.276

Cell parameters α

90°

Cell parameters β

90.10

Cell parameters γ

90°

Z

4

Volume (ų)

361.267

Crystal structure

Inselsilikat

X-Ray Powder Diffraction

3.43(50),
3.14(100),
3.00(60),
2.86(80),
2.55(60),
2.26(50),
2.20(70),
1.650(50)
XRD chart Herderite

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

Morphology

Einzelkristalle, selten radialstrahlige Aggregate

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5.25

VHN (Hardness Vickers)

470 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3

2.998 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren, - schwache Oxal-, CH3COOH- oder Zitronen-Säure

Chemical Properties and Tests

Aufblähung vor dem Lötrohr und schmilzend zu weißem Email.Die Flamme färbt sich dabei schwach grün.In Salzsäure löslich.

(Co-)Type locality

(Co-)Type locality

Deutschland/Sachsen/Erzgebirgskreis/Ehrenfriedersdorf/Grube Sauberg

Type material

Mineralogische Sammlung der TU Bergakademie Freiberg

Collection number of type material

103800

Paragenesis of type material

Apatit, Quarz

Preface

Occurrences

Fichtelgebirge-Bayern, Maine-USA, Ehrenfriedersdorf-Sa., Ural-GUS, Gilgit-Pakistan, Minas Gerais-Brasilien,

Generation conditions

In Tiefengesteine wärend der pneumatolytisch-hydrothermalen Phase

Associations

Feldspäte, Quarz, Glimmer, Apatit,Turmalin, Topas

Name from

Herder (sächsischer Oberberghauptmann aus Freiberg von 1819 - 1838)

Author (Name, Year)

Haidinger, 1828

Relevance, Usage

keine wirtschaftliche Bedeutung

References

Mineralogical Record 10 (1979), 5
LAPIS Heft 4/1990 Seite 9 - 11

IMA group assignments

 
Gadolinite supergroup
 
 
 

 
 
Herderite group
 
 
 

 
 
 
Herderite subgroup
 
 
 

 
 
 
 
Bergslagite
CaBe(AsO4)(OH)
monoklin
P21/c

 
 
 
 
Herderite
CaBe(PO4)F
monoklin
P21/a

 
 
 
 
Hydroxylherderite
CaBe(PO4)(OH)
monoklin
P21/a

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Actuality: 08. Oct 2024 - 21:29:34

Other languages

German

Herderit

Spanish

Herderita

French

Herderite

English

Herderite

Russian

Гердерит

Traditional Chinese

磷鈹鈣石

Simplified Chinese

磷铍钙石

Alternative Name

Allogonit

Allogonita

Allogonite

Fluor-herderite

Glucinit

Glucinita

Glucinite

CNMNC symbol

Symbol

Hrd

Locations with GPS information

IDs

GUSID (Global unique identifier short form) i8O-PXGilk6JmI06V8VKCA
GUID (Global unique identifier) 3DBEC38B-A271-4E96-8998-8D3A57C54A08
Database ID 1574