登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo Galleries今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

Chladniite

This page is currently not sponsored. Click here to sponsor this page.
00404040014950517398640.jpg
Ernst Florens Friedrich Chladni
Formula:
{Ca}{Na8}{Ca4Na4}{(Mg,Fe2+)43}(PO4)36
Colour:
Colorless
Lustre:
Sub-Vitreous, Resinous
Hardness:
4½ - 5
Specific Gravity:
3.017 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
Named in honour of Ernst Florens Friedrich Chladni (30 November 1756, Wittenberg, Electorate of Saxony - 3 April 1827, Breslau, Prussia), physicist at the University of Riga, Latvia. He has been referred to as the "father" of meteoritics, for theorizing the origin of meteorites. He is also called the father of acoustics.
Chemically close minerals (also anhydrous) include czochralskiite, brianite, and merrillite - all known from meteorites. Johnsomervilleite of the same group is also somewhat chemically similar.

Originally found as a single grain (975 x 175 micrometers) with chlorapatite, olivine, pyroxene, plagioclase, schreibersite, and troilite.

Just recently a terrestrial occurrence evidence was reported by Rius (2016). It is of pegmatitic origin and was determined using the relatively new technique: through-the-substrate microdiffraction (tts-μXRD). This terrestrial chladniite is different from the meteoritic one in cation(Mg, Fe+Mn & Ca) ordering, and is said to have the M(1) site dominated by Mn (the question thus arises if this is still chladniite).


Hide all sections | Show all sections

Classification of ChladniiteHide

Approved
Approval Year:
1993
8.AC.50

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
Dana 7th ed.:
38.2.9.3
38.2.5.3

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
2 : (AB)5(XO4)3

Physical Properties of ChladniiteHide

Sub-Vitreous, Resinous
Transparency:
Transparent
Colour:
Colorless
Streak:
White
Hardness:
4½ - 5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
Rhombohedral
Fracture:
Irregular/Uneven
Density:
3.017(2) g/cm3 (Calculated)

Optical Data of ChladniiteHide

Type:
Uniaxial (+)
RI values:
nω = 1.600 nε = 1.620
Birefringence:
0.02
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Type:
Anisotropic
Anisotropism:
weak
Colour in reflected light:
Gray
Internal Reflections:
orange-brown
Pleochroism:
Non-pleochroic
Comments:
Weakly anisotropic

Chemical Properties of ChladniiteHide

Formula:
{Ca}{Na8}{Ca4Na4}{(Mg,Fe2+)43}(PO4)36
IMA Formula:
Na2CaMg7(PO4)6
Idealised Formula:
Na2CaMg7(PO4)6
Common Impurities:
Fe,Mn,Si

Crystallography of ChladniiteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Setting:
R3
Cell Parameters:
a = 14.967(2) Å, c = 42.595(4) Å
Ratio:
a:c = 1 : 2.846
Unit Cell V:
8,263.40 ų (Calculated from Unit Cell)
Z:
18
Morphology:
Rims around other phosphates and silicates

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.69 Å(strong)
3.56 Å(medium)
3.08 Å(weak)
2.96 Å(strong)
2.50 Å(medium)
2.75 Å(strong)
2.13 Å(medium)
1.851 Å(medium)
Comments:
American Mineralogist 79:375 (1994)

Geological EnvironmentHide

Geological Setting:
Iron and primitive achondrite meteorites

Type Occurrence of ChladniiteHide

Place of Conservation of Type Material:
Smithsonian Institute
Geological Setting of Type Material:
In type IIICD iron meteorite and primitive achondrite meteorite.

Synonyms of ChladniiteHide

Other Language Names for ChladniiteHide

German:Chladniit
Spanish:Chladniita

Relationship of Chladniite to other SpeciesHide

Member of:
Other Members of this group:
Fillowite{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36Trig. 3 : R3
Galileiite{Fe2+}{Na8}{Fe2+4Na4}{Fe2+43}(PO4)36Trig. 3 : R3
JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36Trig.
Stornesite-(Y){(Y, Ca)}{Na62}{(Ca,Na)8}{(Mg,Fe2+)43}(PO4)36Trig. 3 : R3
XenophylliteNa4Fe2+7(PO4)6Tric. 1 : P1

Common AssociatesHide

Albite-Anorthite SeriesFeldspar Group.
ChlorapatiteCa5(PO4)3Cl
Fayalite-Forsterite SeriesCommonly known as "olivine" (most of which is Fe-bearing forsterite).
GraftoniteFe2+Fe2+2(PO4)2
Kamacite(Fe,Ni)

Related Minerals - Nickel-Strunz GroupingHide

8.AC.AngarfiteNaFe3+5(PO4)4(OH)4·4H2O Orth. 2 2 2 : C2 2 21
8.AC.WopmayiteCa6Na3□Mn(PO4)3(PO3OH)4Trig. 3m : R3c
8.AC.EdtolliteK2NaCu5Fe3+O2(AsO4)4Tric. 1 : P1
8.AC.AlumoedtolliteK2NaCu5AlO2(AsO4)4Tric. 1 : P1
8.AC.05HowardevansiteNaCuFe2(VO4)3Tric. 1 : P1
8.AC.10Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon.
8.AC.10Arseniopleite(Ca,Na)NaMn2+(Mn2+,Mg,Fe2+)2(AsO4)3Mon. 2/m : P2/b
8.AC.10Caryinite(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3Mon. 2/m
8.AC.10Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3Mon. 2/m : B2/b
8.AC.10HagendorfiteNaCaMn2+Fe2+2(PO4)3Mon. 2/m : B2/b
8.AC.10JohilleriteNa(Mg,Zn)3Cu(AsO4)3Mon. 2/m : B2/b
8.AC.10Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3Mon.
8.AC.10NickenichiteNa0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3Mon. 2/m : B2/b
8.AC.10VaruliteNaCaMn2+Mn2+2(PO4)3Mon. 2/m : B2/b
8.AC.10FerrohagendorfiteNaCaFe2+Fe2+2(PO4)3Mon.
8.AC.10BradaczekiteNaCu4(AsO4)3Mon. 2/m : B2/b
8.AC.10YazganiteNaFe3+2(Mg,Mn2+)(AsO4)3 · H2OMon. 2/m : B2/b
8.AC.10GroatiteNaCaMn2(PO4)(HPO4)2Mon. 2/m : B2/b
8.AC.15BobfergusoniteNa2Mn5FeAl(PO4)6Mon. 2/m : P2/b
8.AC.15Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3Mon. 2/m : P21/b
8.AC.15QingheiiteNaMn3+Mg(Al,Fe3+)(PO4)3Mon. 2/m : P21/b
8.AC.15Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3Mon. 2/m : P21/b
8.AC.15Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3Mon. 2/m
8.AC.15Ferrorosemaryite◻NaFe2+Fe3+Al(PO4)3Mon.
8.AC.15Qingheiite-(Fe2+)Na2Fe2+MgAl(PO4)3Mon. 2/m : P21/m
8.AC.18ManitobaiteNa16Mn2+25Al8(PO4)30Mon. m : Pb
8.AC.20MarićiteNaFe2+(PO4)Orth. mmm (2/m 2/m 2/m) : Pmna
8.AC.25Berzeliite(NaCa2)Mg2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25ManganberzeliiteNaCa2Mn2+2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25Palenzonaite(NaCa2)Mn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25SchäferiteCa2NaMg2(VO4)3Iso.
8.AC.30BrianiteNa2CaMg(PO4)2Mon. 2/m : P21/b
8.AC.35Vitusite-(Ce)Na3(Ce,La,Nd)(PO4)2Orth. mm2 : Pca21
8.AC.40Olgite(Sr,Ba)(Na,Sr,REE)2Na(PO4)2Trig. 3m (3 2/m) : P3m1
8.AC.40Bario-olgite(Ba,Sr)(Na,Sr,REE)2Na(PO4)2 · Trig. 3 : P3
8.AC.45StrontiowhitlockiteSr9Mg(PO4)6(HPO4)Trig. 3m : R3c
8.AC.45WhitlockiteCa9Mg(PO4)6(HPO4)Trig. 3m : R3c
8.AC.45MerrilliteCa9NaMg(PO4)7Trig. 3m : R3m
8.AC.45TuiteCa3(PO4)2Trig. 3m (3 2/m) : R3m
8.AC.45FerromerrilliteCa9NaFe2+(PO4)7Trig. 3m : R3c
8.AC.50Fillowite{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36Trig.
8.AC.50Galileiite{Fe2+}{Na8}{Fe2+4Na4}{Fe2+43}(PO4)36Trig. 3 : R3
8.AC.50Stornesite-(Y){(Y, Ca)}{Na62}{(Ca,Na)8}{(Mg,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50XenophylliteNa4Fe2+7(PO4)6Tric. 1 : P1
8.AC.55HarrisoniteCa(Fe2+,Mg)6(PO4)2(SiO4)2Trig.
8.AC.60KosnariteKZr2(PO4)3Trig. 3m (3 2/m) : R3c
8.AC.65Panethite(Na,Ca)2(Mg,Fe2+)2(PO4)2Mon. 2/m : P21/b
8.AC.70StanfielditeCa4Mg5(PO4)6Mon.
8.AC.75RonneburgiteK2MnV4O12Mon. 2/m
8.AC.80Tillmannsite(Ag3Hg)(VO4,AsO4)Tet. 4 : I4
8.AC.85FilatoviteK(Al,Zn)2(As,Si)2O8Mon. 2/m

Related Minerals - Dana Grouping (8th Ed.)Hide

38.2.5.1Fillowite{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36Trig. 3 : R3
38.2.5.2JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36Trig.

Other InformationHide

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 ChladniiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
McCoy, T.J., Steele, I.M., Keil, K., Leonard, B.F., Endress, M. (1993) Chladniite: A New Mineral Honoring the Father of Meteoritics. Meteoritics: 28(3): 394.
McCoy, T.J., Steele, I.M., Keil, K., Leonard, B.F., Endreβ, M. (1994) Chladniite, Na2CaMg7(PO4)6: A new mineral from the Carlton (IIICD) iron meteorite. American Mineralogist: 79: 375-380.
Floss, C. (1999) Fe, Mg, Mn-bearing phosphates in the GRA 95209 meteorite: occurrences and mineral chemistry. American Mineralogist: 84: 1354-1359.
Grew, E.S., Yates, M.G., Beane, R.J., Floss, C., Gerbi, C. (2010) Chopinite-sarcopside solid solution, [(Mg,Fe)3](PO4)2, in GRA95209, a transitional acapulcoite; Implications for phosphate genesis in meteorites. American Mineralogist: 95: 260-272.
Rius, J. (2016) Terrestrial Chladniite Embedded In Polished Thin Sections Refined From Tts Microdiffraction Data. MISCA2016, MS6-OP2; http://forum.amiminerals.it/viewtopic.php?f=5&t=12854 (2016)
Vallcorba, O., Casas, L., Colombo, F., Frontera, C., Rius, J. (2017) First terrestrial occurrence of the complex phosphate chladniite: crystal-structure refinement by synchrotron through-the-substrate microdiffraction. European Journal of Mineralogy: 29: 287-293.

Internet Links for ChladniiteHide

Localities for ChladniiteHide

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.
Antarctica
 
  • Eastern Antarctica
    • Transantarctic Mountains
      • Wisconsin Range
AmMin 84:1354-1359
American Mineralogist, Volume 84, pages 1354–1359, 1999
Argentina
 
Vallcorba, O., Casas, L., Colombo, F., Frontera, C., & Rius, J. (2017). First terrestrial occurrence of the complex phosphate chladniite: crystal-structure refinement by synchrotron through-the-substrate microdiffraction. European Journal of Mineralogy, 29(2), 287-293.
Russia
 
  • Sakha Republic (Yakutia)
    • Oymyakonsky District
Litasov, K. D., & Podgornykh, N. M. (2017). Raman spectroscopy of various phosphate minerals and occurrence of tuite in the Elga IIE iron meteorite. Journal of Raman Spectroscopy, 48(11), 1518-1527.
USA (TL)
 
  • Texas
    • Hamilton Co.
      • Carlton
American Mineralogist, Volume 79, pages 375-380, 1994
 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.3.28 17:35:23 Page generated: 2020.3.2 03:12:29
Go to top of page