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Tululite

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Formula:
Ca14(Fe3+,Al)(Al,Zn,Fe3+,Si,P,Mn,Mg)15O36
Colour:
Yellow with greenish tint
Lustre:
Vitreous
Hardness:
Specific Gravity:
3.826 (Calculated)
Crystal System:
Isometric
Name:
The name was chosen after the geographical name Tulul Al Hammam (Arabic for Pigeon Hills) located in the northern Siwaqa area, where the mineral was found.
Tululite belongs to a group of compounds with the general formula Ca14MT15O35+x (0 ≤ x ≤ 1), and is a new structure type.


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Classification of TululiteHide

Approved
Approval Year:
2014

Physical Properties of TululiteHide

Vitreous
Transparency:
Transparent
Colour:
Yellow with greenish tint
Streak:
white
Hardness:
6½ on Mohs scale
Hardness:
VHN50=729(10) kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
None observed
Fracture:
Irregular/Uneven
Density:
3.826 g/cm3 (Calculated)

Optical Data of TululiteHide

Type:
Isotropic
RI values:
n = 1.746(2)
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
High

Chemical Properties of TululiteHide

Formula:
Ca14(Fe3+,Al)(Al,Zn,Fe3+,Si,P,Mn,Mg)15O36

Crystallography of TululiteHide

Crystal System:
Isometric
Class (H-M):
2 3 - Tetartoidal
Space Group:
F2 3
Cell Parameters:
a = 14.9346(4) Å
Unit Cell V:
3331.07 ų
Z:
4
Morphology:
Irregular grains

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.874Å(44)
2.874Å(33)
2.640Å(100)
2.524Å(31)
2.524Å(23)
2.278Å(30)
1.760Å(16)
1.524Å(25)
Comments:
From Type Description.

Type Occurrence of TululiteHide

General Appearance of Type Material:
In thin clusters as irregular grains with indented outlines (20–100 μm in size), having typical open-work textures
Place of Conservation of Type Material:
Type materialis deposited in the collections of the Central Siberian Geological Museum of the V.S. Sobolev Institute of Geology and Mineralogy, 3 Ac. Koptyuga Avenue, Novosibirsk 630090, Russia, catalogue number VII-91/1
Geological Setting of Type Material:
In medium-temperature (800–850 °C) combustion metamorphic (CM) spurrite-fluorellestadite marbles
Associated Minerals at Type Locality:

Synonyms of TululiteHide

Fluorescence of TululiteHide

Non--fluorescent under ultraviolet light

Other InformationHide

Notes:
Dissolves in 1.5 % HCl
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for TululiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Khoury, H.N., Sokol, E.V., Kokh, S.N., Seryotkin, Y.V., Nigmatulina, E.N., Goryainov, S.V., Belogub, E.V. and Clark, I.D. (2015) Tululite, IMA 2014-065. CNMNC Newsletter No. 23, February 2015, page 53; Mineralogical Magazine, 79, 51-58.
Khoury, H.N., Sokol, E.V., Kokh, S.N., Seryotkin, Y.V., Nigmatulina, E.N., Goryainov, S.V., Belogub, E.V., Clark, I.D. (2016): Tululite, Ca14(Fe3+,Al)(Al,Zn,Fe3+,Si,P,Mn,Mg)15O36: a new Ca zincate-aluminate from combustion metamorphic marbles, central Jordan. Mineralogy and Petrology, 110, 125-140

Internet Links for TululiteHide

Localities for TululiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Jordan (TL)
 
  • Amman Governorate
    • Hashem region
      • Lisdan-Siwaga Fault
        • Siwaga
Khoury, H.N., Sokol, E.V., Kokh, S.N., Seryotkin, Y.V., Nigmatulina, E.N., Goryainov, S.V., Belogub, E.V. and Clark, I.D. (2015) Tululite, IMA 2014-065. CNMNC Newsletter No. 23, February 2015, page 53; Mineralogical Magazine, 79, 51-58. ; Khoury, H.N., Sokol, E.V., Kokh, S.N., Seryotkin, Y.V., Nigmatulina, E.N., Goryainov, S.V., Belogub, E.V., Clark, I.D. (2016): Tululite, Ca14(Fe3+,Al)(Al,Zn,Fe3+,Si,P,Mn,Mg)15O36: a new Ca zincate-aluminate from combustion metamorphic marbles, central Jordan. Mineralogy and Petrology, 110, 125-140
 
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