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Nyerereite

Pictures (2 Images total)

Nyerereit
Views (File:
1591370666
): 217
Nyerereit
schmutzigweiße Aggregate von Nyerereit in Glasampulle, Ol Doinyo Lengai, Ngorongoro, Arush, Tansania; BB unbe.
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Tansania/Arusha, Region/Oldoinyo Lengai (Ol Doinyo Lengai) Vulkan
Mineral: Nyerereite
Image: 1591370666
License: Usage for Mineralienatlas project only
Nyerereit

schmutzigweiße Aggregate von Nyerereit in Glasampulle, Ol Doinyo Lengai, Ngorongoro, Arush, Tansania; BB unbe.
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-06-05
Locality: Oldoinyo Lengai (Ol Doinyo Lengai) Vulkan / Arusha, Region / Tansania
Gregoryit, Nyerereit
Views (File:
1634143977
): 239
Gregoryit, Nyerereit
Oldoinyo Lengai, Tansania; Bb 7 mm; Probe in zugeschweißtem Glasröhrchen, da Gregoryit keine Feuchtigkeit verträgt.
Copyright: Guy Heinen; Contribution: guyhein
Collection: Guy Heinen
Location: Tansania/Arusha, Region/Oldoinyo Lengai (Ol Doinyo Lengai) Vulkan
Mineral: Gregoryite, Nyerereite
Image: 1634143977
License: Usage for Mineralienatlas project only
Gregoryit, Nyerereit

Oldoinyo Lengai, Tansania; Bb 7 mm; Probe in zugeschweißtem Glasröhrchen, da Gregoryit keine Feuchtigkeit verträgt.
Collection: Guy Heinen
Copyright: Guy Heinen
Contribution: guyhein 2021-10-13
Locality: Oldoinyo Lengai (Ol Doinyo Lengai) Vulkan / Arusha, Region / Tansania

Collectors Summary

Color farblos
Streak color weiß
Solubility +++ Säuren, stabil an der Luft
Crystal System orthorhombisch, Cmc21

Chemism

Chemical formula

Na2Ca(CO3)2

Chemical composition

Calcium, Natrium, Kohlenstoff, Sauerstoff

Unit weight: 206.0760804 u; Number of atoms in the formula: 11

Info

Empirical formula:

Na2Ca(CO3)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Carbon

C

11.66

2

18.18

12.0107800

24.0215600
Oxygen

O

46.58

6

54.55

15.9994300

95.9965800
Sodium

Na

22.31

2

18.18

22.9897702

45.9795404
Calcium

Ca

19.45

1

9.09

40.0784000

40.0784000

Analysis wt%

CaO : 22.20, SrO : 2.00, BaO : 0.60, Na2O : 26.20, K2O : 7.90, CO2 : 39.00, SO3 : 2.10, Cl : 0.42, H2O : 0.80 (Ref: GSAM68)

Strunz 9th edition incl. updates

5.AC.10

5: Carbonate (Carbonate, Nitrate)
A: Carbonate ohne weitere Anionen, ohne H2O
C: Alkali- und Alkali-Erden-Carbonate
10:Nyerereit-Gruppe

Lapis Classification

V/B.05-020

V: NITRATE, CARBONATE UND BORATE
B: Wasserfreie Carbonate [CO3] 2-, ohne fremde Anionen

Classification by Hölzel

5.AC.200

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
A: Carbonates (-Anions -Water)
C: Carbonates: orthorhombic or monoclinic
2: Double Carbonates

Dana 8th edition

14.03.04.01

14: Anhydrous Carbonates
03: Anhydrous Carbonates with Compound Formula A+2 B++ (CO3)2

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

max. Birefringence

0.021
Birefringence chart\! Nyerereite title=Birefringence chart Nyerereite

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

1.511

RI value β

1.533

RI value γ / ε

1.535

Ri mean

1.526

2V angle

Biaxial (-) 29°

Optical Data Luminescence

Color LW-UV (365nm)

  

orange

LW-UV Intensity

schwach

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

36

Space Group

Cmc21

Cell parameters a (Å)

5.042

Cell parameters b (Å)

8.806

Cell parameters c (Å)

12.744

Cell parameters a/b or c/a

0.573

Cell parameters c/b

1.447

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

565.832

X-Ray Powder Diffraction

6.377(90),
4.385(90),
3.046(100),
2.582(80),
2.536(90),
2.199(80),
2.122(80),
2.071(90)
XRD chart Nyerereite

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)

2.541 (gemessen)

2.419 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren, stabil an der Luft

(Co-)Type locality

(Co-)Type locality

Tansania/Arusha, Region/Oldoinyo Lengai (Ol Doinyo Lengai) Vulkan

Preface

Author (Name, Year)

Milton, 1968

References

Zeitschrift für Kristallographie 145 (1977), 73

Other languages

German

Nyerereit

French

Nyerereite

English

Nyerereite

Spanish

Nyerereíta

Russian

Ниеререит

https://catalogmineralov.ru/mineral/nyerereite.html

Simplified Chinese

尼碳钠钙石

Japanese

ﾅｲﾚﾗｰﾗｲﾄ

Alternative Name

Simplified Chinese

尼雷尔石

CNMNC (IMA)-Number

IMA 1963-014

CNMNC symbol

Symbol

Nye

Locations with GPS information

IDs

GUSID (Global unique identifier short form) a5YeASX3sk2HVO0bVqfiMg
GUID (Global unique identifier) 011E966B-F725-4DB2-8754-ED1B56A7E232
Database ID 2796