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Perettiite-(Y) (Perettiit-(Y))

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Perettiit-(Y)
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Perettiit-(Y)
grünlicher Stengel von Perettiit-(Y) als Einschluss in Phenakit, Khetchel Village, Molo Quarter, Shan State, Myanmar; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Myanmar (Burma)/Shan-Staat/Kyaukme, Distrikt/Möng Mit (Momeik) Township/Khetchel (Cache; Khat Che)
Mineral: Perettiite-(Y)
Image: 1588863856
License: Usage for Mineralienatlas project only
Perettiit-(Y)

grünlicher Stengel von Perettiit-(Y) als Einschluss in Phenakit, Khetchel Village, Molo Quarter, Shan State, Myanmar; BB < 1 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-05-07
Locality: Khetchel (Cache; Khat Che) / Möng Mit (Momeik) Township / Kyaukme, Distrikt / Shan-Staat / Myanmar (Burma)

Collectors Summary

Hardness (Mohs) ~7
Cleavages (010)
Fracture unregelmäßig
Crystal System orthorhombisch, Pmna

Chemism

Chemical formula

Y3+2Mn2+4Fe2+[Si2B8O24]

Empirical formula (analysis)

Y2.06Ln0.53Zr0.02Th0.01Mn3.24Ca0.38Fe0.71Mg0.07Al0.11Li0.22Si1.95B7.44Be0.31O24

Chemical composition

Eisen, Mangan, Silicium, Yttrium, Bor, Sauerstoff

Unit weight: 1031.906901311 u; Number of atoms in the formula: 41.05

Info

Empirical formula:

Y2.06Ln0.53Zr0.02Th0.01Mn3.24Ca0.38Fe0.71Mg0.07Al0.11Li0.22Si1.95B7.44Be0.31O24

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Lanthanoide

Ln

8.10

0.53

1.29

157.6500000

83.5545000

Lithium

Li

0.15

0.22

0.54

6.9412000

1.5270640

Beryllium

Be

0.27

0.31

0.76

9.0121823

2.7937765

Boron

B

7.80

7.44

18.12

10.8117000

80.4390480

Oxygen

O

37.21

24

58.47

15.9994300

383.9863200

Magnesium

Mg

0.16

0.07

0.17

24.3050600

1.7013542

Aluminium

Al

0.29

0.11

0.27

26.9815382

2.9679692

Silicon

Si

5.31

1.95

4.75

28.0855300

54.7667835

Calcium

Ca

1.48

0.38

0.93

40.0784000

15.2297920

Manganese

Mn

17.25

3.24

7.89

54.9380499

177.9992817

Iron

Fe

3.84

0.71

1.73

55.8452000

39.6500920

Yttrium

Y

17.75

2.06

5.02

88.9058520

183.1460551

Zirconium

Zr

0.18

0.02

0.05

91.2242000

1.8244840

Thorium

Th

0.22

0.01

0.02

232.0381100

2.3203811

Strunz 9th edition incl. updates

9

9: Silikate (Germanate)
9:
9:

Lapis Classification

VIII/G.08-030

VIII: SILIKATE
G: Übergangsstrukturen zwischen Ketten- und Schichtsilikaten

IMA status

anerkannt - CNMNC Newsletter 25, Juni 2015

Mineral status

anerkanntes Mineral

Optical Properties

RI value α / ω / n

α = 1.82(1) (589 nm)

RI value γ / ε

γ = 1.84(1) (589 nm)

2V angle

Biaxial

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

53

Space Group

Pmna

Cell parameters a (Å)

12.8252(5)

Cell parameters b (Å)

4.6187(2)

Cell parameters c (Å)

12.8252(5)

Cell parameters a/b or c/a

2.777

Cell parameters c/b

2.777

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

759.71

Crystal structure

Neuer Strukturtyp

X-Ray Powder Diffraction

4.63(52), 4.08(28), 3.05(100), 2.64(67), 2.54(60), 1.87(33), 1.84(52), 1.44(25)

XRD chart Perettiite-(Y)

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

~7

Density (g/cm³)

4.533 (berechnet)

4.511 ( ρ calc. Mineralienatlas )

Cleavages

(010)

Fracture

unregelmäßig

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

Myanmar (Burma)/Shan-Staat/Kyaukme, Distrikt/Möng Mit (Momeik) Township/Khetchel (Cache; Khat Che)

Type material

Sammlungen des Museums für Naturhistorie Bern, Bernastrasse 5, 3012 Bern , Schweiz

Collection number of type material

NMBE-43035

Preface

Name from

Der Name ehrt Dr. Adolf Peretti, Mineraloge und Gemmologie

Author (Name, Year)

Rosa Micaela Danisi, Thomas Armbruster, Hao Wang, Detlef Günther, Mariko Nagashima, Eric Reusser und Willy Bier (2015)

References

Danisi, R.M., Armbruster, T., Wang, H., Gü nther, D., Nagashima, M., Reusser, E. and Bieri, W. (2015) Perettiite-(Y), IMA 2014-109. CNMNC Newsletter No. 25, June 2015, page 533; Mineralogical Magazine, 79, 529-535.

ROSA MICAELA DANISI; THOMAS ARMBRUSTER; EUGEN LIBOWITZKY; HAO A.O. WANG; DETLEF GÜNTHER; MARIKO NAGASHIMA; ERIC REUSSER; WILLY BIERI - Y3+2Mn2+4Fe2+[Si2B8O24], a new mineral from Momeik, Myanmar - European Journal of Mineralogy online: 26. August 2015

Other languages

German

Perettiit-(Y)

English

Perettiite-(Y)

CNMNC (IMA)-Number

IMA 2014-109

CNMNC symbol

Symbol

Ptt-Y

Locations with GPS information

IDs

GUSID (Global unique identifier short form) debjHrU8Akqypn5BOZIsJw
GUID (Global unique identifier) 1EE3E675-3CB5-4A02-B2A6-7E4139922C27
Database ID 7957