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Malayaite

Pictures (4 Images total)

Malayaite, Hedenbergite, Andradite, Fluorite, Quartz
Views (File:
1500037027
): 1053
Malayaite, Hedenbergite, Andradite, Fluorite, Quartz
Large rose-like aggregate of tabular crystals of greenish-yellow Malayaite with minor aggregate of brownish-green prismatic Hedenbergite (bottom). Associating minerals are small brown rhombododecahedrons of Andradite in white Quartz (at the right end), colourless Fluorite (at the left end). Specimen size is 4.5x3x2 cm. Collected by V.K. Politov in trench #2 on ore body #3 of the locality in beginning of 80th. Pavel M. Kartashov collection and scan; Locality: Kan'onskoe Sn deposit, Magadanskaya Oblast', Far-Eastern Region, Russia;
Copyright: Pavel M. Kartashov; Contribution: Stefan
Location: Russland/Ferner Osten, Föderationskreis/Magadan, Oblast/Kan'onskoe Sn-Lagerstätte
Mineral: Malayaite
Image: 1500037027
License: Usage for Mineralienatlas project only
Malayaite, Hedenbergite, Andradite, Fluorite, Quartz

Large rose-like aggregate of tabular crystals of greenish-yellow Malayaite with minor aggregate of brownish-green prismatic Hedenbergite (bottom). Associating minerals are small brown rhombododecah...
Copyright: Pavel M. Kartashov
Contribution: Stefan 2017-07-14
Locality: Kan'onskoe Sn-Lagerstätte / Magadan, Oblast / Ferner Osten, Föderationskreis / Russland
Malayaite, Axinite-(Fe), Hedenbergite
Views (File:
1500037198
): 1039
Malayaite, Axinite-(Fe), Hedenbergite
3.8 x 3.8 x 3.0 cm. A great specimen for this locality. A yellow-brown, 3mm, subhedral crystal of malayaite (see photos) located at the terminus of a vug with well-formed crystals of violet-brown, vitreous axinite-(Fe) and white calcite. Fine-grained, disseminated malayaite is also visible in the hedenbergite adjacent to the vug; bright green hedenbergite comprises most of the matrix. Ex. Paolo Matioli collection. Photos by Tom and Melissa Campbell; Locality: Kan'onskoe Sn deposit, Magadanskaya Oblast', Far-Eastern Region, Russia
Copyright: Rob Lavinsky; Contribution: Stefan
Location: Russland/Ferner Osten, Föderationskreis/Magadan, Oblast/Kan'onskoe Sn-Lagerstätte
Mineral: Malayaite
Image: 1500037198
License: Usage for Mineralienatlas project only
Malayaite, Axinite-(Fe), Hedenbergite

3.8 x 3.8 x 3.0 cm. A great specimen for this locality. A yellow-brown, 3mm, subhedral crystal of malayaite (see photos) located at the terminus of a vug with well-formed crystals of violet-brown, ...
Copyright: Rob Lavinsky
Contribution: Stefan 2017-07-14
Locality: Kan'onskoe Sn-Lagerstätte / Magadan, Oblast / Ferner Osten, Föderationskreis / Russland
Malayait
Views (File:
1568623883
): 657
Malayait
UK/England/West Devon, Okehampton. Bildbreite 1mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: UK/England/Devon Co./Okehampton
Mineral: Malayaite
Image: 1568623883
License: Usage for Mineralienatlas project only
Malayait  D

UK/England/West Devon, Okehampton. Bildbreite 1mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-09-16
Locality: Okehampton / Devon Co. / England / UK
Malayait XX
Views (File:
1618140438
): 653
Malayait XX
leicht gelbliche Malayait XX bis knapp 2 mm in Matrix; Grube Sauberg, Ehrenfriedersdorf/Erzgebirge
Copyright: Erzsucher; Contribution: Erzsucher
Location: Deutschland/Sachsen/Erzgebirgskreis/Ehrenfriedersdorf/Grube Sauberg
Mineral: Malayaite
Image: 1618140438
License: Usage for Mineralienatlas project only
Malayait XX

leicht gelbliche Malayait XX bis knapp 2 mm in Matrix; Grube Sauberg, Ehrenfriedersdorf/Erzgebirge
Copyright: Erzsucher
Contribution: Erzsucher 2021-04-11
Locality: Grube Sauberg / Ehrenfriedersdorf / Erzgebirgskreis / Sachsen / Deutschland

Collectors Summary

Color farblos, grünlich grau, weiß, hellgelb, orange
Streak color weiß
Hardness (Mohs) 3.75
Crystal System monoklin, A2/a

Chemism

Chemical formula

CaSnO(SiO4)

Chemical composition

Calcium, Silicium, Zinn, Sauerstoff

Unit weight: 266.87178 u; Number of atoms in the formula: 8

Info

Empirical formula:

CaSnO(SiO4)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

29.98

5

62.50

15.9994300

79.9971500
Silicon

Si

10.52

1

12.50

28.0855300

28.0855300
Calcium

Ca

15.02

1

12.50

40.0784000

40.0784000
Tin

Sn

44.48

1

12.50

118.7107000

118.7107000

Analysis wt%

CaO : 19.14, SnO2 : 58.48, SiO2 : 21.26 (Ref: American Mineralogist 61)

Strunz 9th edition incl. updates

9.AG.15

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
G: Insel(Neso)silikate mit zusätzlichem Anionen; Kationen in meist [6] und > [6] Koordination
15:Titanit-Gruppe

Lapis Classification

VIII/B.12-020

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
12: Kationen mit Koordinationszahlen zwischen [8] und [12]

Classification by Hölzel

9.AG.430

9: SILICATES
A: Nesosilicates
G: Nesosilicates with Cation: O
4: C small + large; Titanite-Group

Dana 8th edition

52.04.03.02

52: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O
04: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or > [6] coordination
03: Titanite group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, grünlich grau, weiß, hellgelb, orange

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend

max. Birefringence

0.034
Birefringence chart\! Malayaite title=Birefringence chart Malayaite

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

1.765

RI value β

1.784

RI value γ / ε

1.799

Ri mean

1.783

2V angle

Biaxial (-) 85°~

Optical Data Luminescence

Luminescence

fluoreszierend, Kurzwelliges UV=leuchtend gelblich grün

Color LW-UV (365nm)

  

gelb

Color SW-UV (254nm)

  

gelblich weiß

SW-UV Intensity

stark

SW-UV Other Colors

        

weiß, gelblich weiß, blassgelb, grünlich weiß

Most Common Activator

TiO6

Other Activators

Mn2+

Afterglow (Persistant Luminescence)

keine Daten

Image ⇒ Luminescence ⇒ excitation ⇒ UV shortwave ~254nm (1 Images total)

Malayait
Views (File:
1244378805
): 3459
Malayait
Ehrenfriedersdorf, Zinnerz GmbH, Sauberg, Westfeld, 5. Sohle, Abbau 5850 W, Malayait ist unter Tageslicht im Gestein nicht zu erkennen und nur unter KW UV sichtbar. Stufengröße 5 x 2 cm
Copyright: uwe; Contribution: uwe
Collection: uwe
Location: Deutschland/Sachsen/Erzgebirgskreis/Ehrenfriedersdorf/Grube Sauberg
Mineral: Malayaite
Encyclopedia: Fluoreszenz
Image: 1244378805
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Malayait

Ehrenfriedersdorf, Zinnerz GmbH, Sauberg, Westfeld, 5. Sohle, Abbau 5850 W, Malayait ist unter Tageslicht im Gestein nicht zu erkennen und nur unter KW UV sichtbar. Stufengröße 5 x 2 cm
Collection: uwe
Copyright: uwe
Contribution: uwe 2009-06-07
Locality: Grube Sauberg / Ehrenfriedersdorf / Erzgebirgskreis / Sachsen / Deutschland

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

A2/a

Cell parameters a (Å)

7.149

Cell parameters b (Å)

8.906

Cell parameters c (Å)

6.667

Cell parameters a/b or c/a

0.803

Cell parameters c/b

0.749

Cell parameters α

90°

Cell parameters β

113.30

Cell parameters γ

90°

Z

4

Volume (ų)

389.863

X-Ray Powder Diffraction

5.05(50),
4.45(10),
3.283(100),
3.060(40),
2.665(30),
2.639(40),
2.412(20),
2.099(20)
XRD chart Malayaite

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)

3.75

VHN (Hardness Vickers)

160 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.3 - 4.55 / Durchschnittlich = 4.42

4.546 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Malaysia/Perak/Kinta Valley/Zinnseifen

Malaysia/Perak/Balang Padang/Chenderiang/Sungei Lah (Sungei Lok)

Preface

Author (Name, Year)

Alexander & Flinter, 1965

References

Mineralogical Magazine 48 (1984), 27

Other languages

German

Malayait

English

Malayaite

French

Malayaite

Spanish

Malayaíta

Russian

Малайяит

Russian

Малаяит

Simplified Chinese

马来亚石

CNMNC (IMA)-Number

IMA 1964-024

CNMNC symbol

Symbol

Mly

Locations with GPS information

IDs

GUSID (Global unique identifier short form) aJAacvj79kqlFZmZtpAUIQ
GUID (Global unique identifier) 721A9068-FBF8-4AF6-A515-9999B6901421
Database ID 2340