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Tuite

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Formula:
Ca
 
3
(PO
 
4
)
 
2
System:TrigonalColour:Colourless to white
Name:Named after Prof. Guangzhi Tu, Institute of Geochemistry, Chinese Academy of Sciences.
Dimorph of:Merrillite


Whitlockite group
High-pressure polymorph of Merrillite

Classification of Tuite

IMA status:Approved 2001
Strunz 8th edition ID:7/A.05-45
Strunz 9th edition ID:8.AC.45
Nickel-Strunz 10th (pending) edition ID:8.AC.45

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
Dana 8th edition ID:38.3.4.6

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
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Type Occurrence of Tuite

Type Locality:Suizhou meteorite (Suizhou L6 chondrite), Xihe, Sui Co., Suizhou Prefecture, Hubei Province, China
General Appearance of Type Material:microscopic tabular grains (< 0.02 mm)
Place of Conservation of Type Material:Geological Museum of the Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Wushan, Guangzhou, China
Geological Setting of type material:high pressure phase in a meteorite
Associated Minerals at type locality:
TroiliteRingwooditePyropeMerrilliteMajorite

Physical Properties of Tuite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless to white
Streak:white
Hardness Data:Could not be measured
Cleavage:None Observed
Density (calculated):3.452 g/cm3

Crystallography of Tuite

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Space Group:R3m {R3 2/m}
Cell Parameters:a = 5.258Å, c = 18.727Å
Ratio:a:c = 1 : 3.562
Unit Cell Volume:V 448.37 ų
Z:3
X-Ray Powder Diffraction:
d-spacingIntensity
2.891 (80)
2.628 (100)
2.214 (20)
1.945 (45)
1.730 (25)
1.567 (22)
1.518 (20)
(

Optical Data of Tuite

Type:Uniaxial (+)
RI values: nω = 1.701 nε = 1.706
Maximum Birefringence:δ = 0.005

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High

Chemical Properties of Tuite

Formula:
Ca
 
3
(PO
 
4
)
 
2
All elements listed in formula:Ca, O, P

Relationship of Tuite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.AC.05Howardevansite
NaCuFe
 
2
(VO
 
4
)
 
3
8.AC.10Alluaudite
(Na,Ca)Mn
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
,Mg)
 
2
(PO
 
4
)
 
3
8.AC.10Arseniopleite
NaCaMn
2+
 
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
8.AC.10Caryinite
(Na,Pb)(Ca,Na)(Ca,Mn
2+
 
)(Mn
2+
 
,Mg,Fe
3+
 
)
 
2
(AsO
 
4
)
 
3
8.AC.10Ferroalluaudite
(Na,Ca)Fe
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)
 
3
8.AC.10Hagendorfite
NaCaMn
2+
 
Fe
2+
2
(PO
 
4
)
 
3
8.AC.10Johillerite
Na(Mg,Zn)
 
3
Cu(AsO
 
4
)
 
3
8.AC.10Maghagendorfite
NaMn(Mg,Fe,Fe)
 
3
(PO
 
4
)
 
3
8.AC.10Nickenichite
Na
 
0.8
Ca
 
0.4
Cu
 
0.4
(Mg,Fe)
 
3
(AsO
 
4
)
 
3
8.AC.10Varulite
NaCaMn
2+
 
Mn
2+
2
(PO
 
4
)
 
3
8.AC.10Ferrohagendorfite
NaCaFe
2+
 
Fe
2+
2
(PO
 
4
)
 
3
8.AC.10Bradaczekite
NaCu
 
4
(AsO
 
4
)
 
3
8.AC.10Yazganite
NaFe
3+
2
(Mg,Mn
2+
 
)(AsO
 
4
)
 
3
 · H
 
2
O
8.AC.10Groatite
NaCaMn
 
2
(PO
 
4
)(HPO
 
4
)
 
2
8.AC.15Bobfergusonite
Na
 
2
Mn
 
5
FeAl(PO
 
4
)
 
6
8.AC.15Ferrowyllieite
(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO
 
4
)
 
3
8.AC.15Qingheiite
NaMn
3+
 
Mg(Al,Fe
3+
 
)(PO
 
4
)
 
3
8.AC.15Rosemaryite
(Na,Ca,Mn)(Mn,Fe
2+
 
)(Fe
3+
 
,Mg)Al(PO
 
4
)
 
3
8.AC.15Wyllieite
(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO
 
4
)
 
3
8.AC.15Ferrorosemaryite
◻NaFe
2+
 
Fe
3+
 
Al(PO
 
4
)
 
3
8.AC.15Qingheiite-(Fe2+)
Na
 
2
Fe
2+
 
MgAl(PO
 
4
)
 
3
8.AC.18Manitobaite
Na
 
16
Mn
2+
 
 
25
Al
 
8
(PO
 
4
)
 
30
8.AC.20Marićite
NaFe
2+
 
(PO
 
4
)
8.AC.25Berzeliite
NaCa
 
2
(Mg,Mn
2+
 
)
 
2
(AsO
 
4
)
 
3
8.AC.25Manganberzeliite
(Ca,Na)
 
3
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
8.AC.25Palenzonaite
(Ca,Na)
 
3
CaMn
2+
2
(VO
 
4
)
 
3
8.AC.25Schäferite
Ca
 
2
NaMg
 
2
(VO
 
4
)
 
3
8.AC.30Brianite
Na
 
2
CaMg(PO
 
4
)
 
2
8.AC.35Vitusite-(Ce)
Na
 
3
(Ce,La,Nd)(PO
 
4
)
 
2
8.AC.40Olgite
(Sr,Ba)(Na,Sr,REE)
 
2
Na(PO
 
4
)
 
2
8.AC.40Bario-olgite
(Ba,Sr)(Na,Sr,REE)
 
2
Na(PO
 
4
)
 
2
 ·
8.AC.45Strontiowhitlockite
Sr
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
8.AC.45Whitlockite
Ca
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
8.AC.45Merrillite
Ca
 
9
NaMg(PO
 
4
)
 
7
8.AC.45Ferromerrillite
Ca
 
9
NaFe
2+
 
(PO
 
4
)
 
7
8.AC.45Bobdownsite
Ca
 
9
Mg(PO
 
4
)
 
6
(PO
 
3
F)
8.AC.50Chladniite
{Ca}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Fillowite
{Mn
2+
 
}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mn
2+
 
,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Johnsomervilleite
{Ca}{Na
 
6
[ ]
 
2
}{Ca
 
6
Na
 
2
}{(Fe
2+
 
,Mg,Mn
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Galileiite
{Fe
2+
 
}{Na
 
8
}{Fe
2+
4
Na
 
4
}{Fe
2+
43
}(PO
 
4
)
 
36
8.AC.50Stornesite-(Y)
{(Y, Ca)}{Na
 
6
◻
 
2
}{(Ca,Na)
 
8
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Xenophyllite
Na
 
4
Fe
2+
7
(PO
 
4
)
 
6
8.AC.55Harrisonite
Ca(Fe
2+
 
,Mg)
 
6
(PO
 
4
)
 
2
(SiO
 
4
)
 
2
8.AC.60Kosnarite
KZr
 
2
(PO
 
4
)
 
3
8.AC.65Panethite
(Na,Ca)
 
2
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)
 
2
8.AC.70Stanfieldite
Ca
 
7
Ca
 
2
Mg
 
9
(PO
 
4
)
 
12
8.AC.75Ronneburgite
K
 
2
MnV
 
4
O
 
12
8.AC.80Tillmannsite
(Ag
 
3
Hg)(VO
 
4
,AsO
 
4
)
8.AC.85Filatovite
K(Al,Zn)
 
2
(As,Si)
 
2
O
 
8

Other Names for Tuite

Synonyms:
IMA2001-070
Other Languages:
German:Tuit

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Tuite

Reference List:

- +
Xie Xiande, Minetti, M. E., Chen Ming, Mao Ho-kwang, Wang Deqiang, Shu Jinfu, and Eei Yingwei (2003): Tuite, γ-Ca3(PO4)2 - A new mineral from the Suizhou L6 chondrite. European Journal of Mineralogy 15, 1001-1005. -[American Mineralogist 89, 1832 (abstract)].

Internet Links for Tuite

Search Engines:
  • Look for Tuite on Google
  • Look for Tuite images on Google
    • External Links:
  • Look for Tuite on Webmineral
  • Look for Tuite on Athena Mineralogy
  • Look for Tuite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
  • Buy from David K Joyce minerals
  • webminerals
  • SpiriferMinerals.com - high quality low prices
  • Fine Minerals from Weinrich Minerals, Inc.
  • Fabre Minerals - search for Tuite specimens
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Pricedownminerals.com - Reverse Auctions and Shop
  • Edwards Minerals - Fine Specimens
  • Wilensky Fine Minerals
  • Rare and Unusual minerals at Mineralogical Research Company
  • Search for Tuite from all mineral dealers at minfind.com
  • By minerals from YourMineralCollection
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    • Localities for Tuite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Queensland
      • Charters Towers Region
        • South Gregory
          • Tenham Station
    		Excalibur Minerals CATALOG 20601 - Volume XXXIII, No. 1
    China
     
    • Hubei Province
      • Suizhou Prefecture
        • Sui Co.
          • Xihe
    		Xie Xiande, Minetti, M. E., Chen Ming, Mao Ho-kwang, Wang Deqiang, Shu Jinfu, and Eei Yingwei (2003): European Journal of Mineralogy 15, 1001-1005.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Jun 2011 16:30:31
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