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Monetite

Pictures (3 Images total)

Monetit
Views (File:
1573231941
): 690
Monetit
Monetit in farblosen eingewachsenen Kristallen; Cerro Mejillones,Chile; BB: 3 mm
Copyright: Rockhounder; Contribution: Rockhounder
Collection: Rockhounder
Location: Chile/Antofagasta, Region (II. Region)/Antofagasta, Provinz/Mejillones/Mejillones, Halbinsel/Cerro Mejillones
Mineral: Monetite
Image: 1573231941
License: Usage for Mineralienatlas project only
Monetit

Monetit in farblosen eingewachsenen Kristallen; Cerro Mejillones,Chile; BB: 3 mm
Collection: Rockhounder
Copyright: Rockhounder
Contribution: Rockhounder 2019-11-08
Locality: Cerro Mejillones / Mejillones, Halbinsel / Mejillones / Antofagasta, Provinz / Antofagasta, Region (II. Region) / Chile
Monetit auf Newberyit nach Struvit
Views (File:
1599544550
): 560
Monetit auf Newberyit nach Struvit
Mono Lake, Mono Co., Kalifornien, USA. Bh: 4cm.
Copyright: Doc Diether; Contribution: Doc Diether
Collection: Doc Diether
Location: USA/Kalifornien (California)/Mono Co./Mono Lake
Mineral: Monetite, Newberyite
Image: 1599544550
License: Usage for Mineralienatlas project only
Monetit auf Newberyit nach Struvit

Mono Lake, Mono Co., Kalifornien, USA. Bh: 4cm.
Collection: Doc Diether
Copyright: Doc Diether
Contribution: Doc Diether 2020-09-08
Locality: Mono Lake / Mono Co. / Kalifornien (California) / USA
Monetit
Views (File:
1701444374
): 25
Monetit
Gelbe Monetit-xx (ohne Maßstab) von der Typlokalität (Monito Island, Mayagüez, Puerto Rico, USA). Ex Van den Broucke Sammlung (Waregem, Belgien – zur Sammlung sh.: https://www.mindat.org/mesg-560223.html).
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: USA/Puerto Rico/Mayagüez/Monito, Insel (Moneta Island; Muna Muna Island)
Mineral: Monetite
Image: 1701444374
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Monetit

Gelbe Monetit-xx (ohne Maßstab) von der Typlokalität (Monito Island, Mayagüez, Puerto Rico, USA). Ex Van den Broucke Sammlung (Waregem, Belgien – zur Sammlung sh.: https://www.mindat.org/mesg-56022~...
Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-01
Locality: Monito, Insel (Moneta Island; Muna Muna Island) / Mayagüez / Puerto Rico / USA

Collectors Summary

Color farblos, weiß, hellgelb
Streak color weiß
Hardness (Mohs) 3.5
Solubility +++ Säuren
Crystal System triklin, P1, P1

Chemism

Chemical formula

CaHPO4

Chemical composition

Calcium, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 136.0578282 u; Number of atoms in the formula: 7

Info

Empirical formula:

CaHPO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.74

1

14.29

1.0079470

1.0079470
Oxygen

O

47.04

4

57.14

15.9994300

63.9977200
Phosphorus

P

22.77

1

14.29

30.9737612

30.9737612
Calcium

Ca

29.46

1

14.29

40.0784000

40.0784000

Analysis wt%

CaO : 41.21, P2O5 : 52.18, H2O : 6.61 (Ref: berechnet)

Strunz 9th edition incl. updates

8.AD.10

8: Phosphate, Arsenate, Vanadate
A: Phosphate, etc., ohne weitere Anionen, ohne H2O
D: Mit ausschließlich großen [Kationen]
10:Monetit-Gruppe

Lapis Classification

VII/A.12-010

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
A: Wasserfreie Phosphate [PO4] 3-, ohne fremde Anionen
12: Sehr große Kationen: Ca-Na-K, SE, Bi u.a.

Classification by Hölzel

8.AD.500

8: PHOSPHATES ARSENATES VANADATES
A: Phosphates (-anions -water)
D: Phosphates, C large

Dana 8th edition

37.01.01.01

37: Phosphate Minerals
01: Anhydrous Acid Phosphates, etc with miscellaneous formulae

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, weiß, hellgelb

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.042
Birefringence chart\! Monetite title=Birefringence chart Monetite

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

1.594

RI value β

1.614

RI value γ / ε

1.636

Ri mean

1.615

2V angle

Biaxial (+) 80°!

Crystallography

Crystal System

triklin

Class (H-M)

1, 1

Space Group number

1, 2

Space Group

P1, P1

Cell parameters a (Å)

6.906

Cell parameters b (Å)

8.577

Cell parameters c (Å)

6.634

Cell parameters a/b or c/a

0.805

Cell parameters c/b

0.773

Cell parameters α

93.90

Cell parameters β

91.50

Cell parameters γ

127.63

Z

4

Volume (ų)

309.342

X-Ray Powder Diffraction

3.38(100),
2.99(90),
2.76(80),
2.50(50),
2.26(60),
1.93(40),
1.86(60),
1.73(70)
XRD chart Monetite

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)

3.5

VHN (Hardness Vickers)

130 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.929

2.921 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

USA/Puerto Rico/Mayagüez/Monito, Insel (Moneta Island; Muna Muna Island)

Preface

Name from

der Typlpkalität Moneto Island (Monito island)

Author (Name, Year)

Shepard, 1882

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 385

Other languages

German

Monetit

Spanish

Monetita

English

Monetite

French

Monetite

Russian

Монетит

Alternative Name

Chavesite

CNMNC symbol

Symbol

Mnti

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 0DBr65JPpUCHkaQPm2Lcqw
GUID (Global unique identifier) EB6B30D0-4F92-40A5-8791-A40F9B62DCAB
Database ID 2579