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Teschemacherite

Pictures (1 Images total)

Teschemacherit
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1704039725
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Teschemacherit
Farblos-weißliche Teschemacherit-Einzelkristalle (ohne Maßstab; REM-EDX analysiert) in Kapsel; FO: North Chincha Island, Provinz Pisco, Ica Dept., Peru. Ex Van den Broucke Sammlung (sh.: https://www.mindat.org/mesg-560223.html).
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: Peru/Ica, Region/Pisco, Provinz/San Clemente, Distrikt/Chincha-Inseln/North Chincha Island
Mineral: Teschemacherite
Image: 1704039725
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Teschemacherit  E
Analysed with energy dispersive X-ray spectroscopy EDX

Farblos-weißliche Teschemacherit-Einzelkristalle (ohne Maßstab; REM-EDX analysiert) in Kapsel; FO: North Chincha Island, Provinz Pisco, Ica Dept., Peru. Ex Van den Broucke Sammlung (sh.: https://ww~...

Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-31
Locality: North Chincha Island / Chincha-Inseln / San Clemente, Distrikt / Pisco, Provinz / Ica, Region / Peru

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 1.5
Solubility +++ H2O
Crystal System orthorhombisch, Pccn

Chemism

Chemical formula

(NH4)HCO3

Chemical composition

Kohlenstoff, Sauerstoff, Stickstoff, Wasserstoff

Unit weight: 79.055525 u; Number of atoms in the formula: 10

Info

Empirical formula:

(NH4)HCO3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

6.37

5

50.00

1.0079470

5.0397350

Carbon

C

15.19

1

10.00

12.0107800

12.0107800

Nitrogen

N

17.72

1

10.00

14.0067200

14.0067200

Oxygen

O

60.71

3

30.00

15.9994300

47.9982900

Strunz 9th edition incl. updates

5.AA.25

5: Carbonate (Carbonate, Nitrate)
A: Carbonate ohne weitere Anionen, ohne H2O
A: Alkali-Carbonate
25:Teschemacherit-Gruppe

Lapis Classification

V/B.01-040

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

Classification by Hölzel

5.AA.300

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
A: Carbonates (-Anions -Water)
A: Alkali-Carbonates

Dana 8th edition

13.01.03.01

13: Carbonate Minerals
01: Acid Carbonates with miscellaneous formulae

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

max. Birefringence

0.132

Birefringence chart\! Teschemacherite title=Birefringence chart Teschemacherite

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

1.423

RI value β

1.536

RI value γ / ε

1.555

Ri mean

1.505

2V angle

Biaxial (-) 42°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

56

Space Group

Pccn

Cell parameters a (Å)

7.255

Cell parameters b (Å)

10.709

Cell parameters c (Å)

8.746

Cell parameters a/b or c/a

0.677

Cell parameters c/b

0.817

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volume (ų)

679.51

X-Ray Powder Diffraction

5.34(60),
4.05(40),
3.62(50),
3.195(20),
3.068(30),
3.005(40),
2.998(100),
2.155(30)

XRD chart Teschemacherite

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)

1.5

VHN (Hardness Vickers)

18 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

1.58 (gemessen)

1.545 ( ρ calc. Mineralienatlas )

Instability

+++ H2O

Preface

Author (Name, Year)

Dana, 1868

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 701

Other languages

German

Teschemacherit

Spanish

Teschemacherita

English

Teschemacherite

French

Teschemacherite

Russian

Тешемахерит

Alternative Name

Ammonium acid carbonate

Ammonium hydrocarbonate

Bicarbonate of Ammonia

Bicarbonate of Ammonia

CNMNC symbol

Symbol

Tmh

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 6CDotamfe0-thD4Xun2b6w
GUID (Global unique identifier) B5E820E8-9FA9-4F7B-AD84-3E17BA7D9BEB
Database ID 3802