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Natisite

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Formula:
Na2Ti(SiO4)O
System:
Tetragonal
Hardness:
3 - 4
This page provides mineralogical data about Natisite.

Classification of Natisite

Approved
9.AG.40a

9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
52.4.4.1

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
14.9.1

14 : Silicates not Containing Aluminum
9 : Silicates of Ti
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First Recorded Occurrence of Natisite

Year of Discovery:
1975

Physical Properties of Natisite

Hardness (Mohs):
3 - 4

Crystallography of Natisite

Crystal System:
Tetragonal
Cell Parameters:
a = 6.5Å, c = 5.07Å
Ratio:
a:c = 1 : 0.78
Unit Cell Volume:
V 214.21 ų (Calculated from Unit Cell)

Optical Data of Natisite

Type:
Uniaxial (-)
RI values:
nω = 1.756 nε = 1.680
Max Birefringence:
δ = 0.076
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High

Chemical Properties of Natisite

Formula:
Na2Ti(SiO4)O
Essential elements:
All elements listed in formula:
Common Impurities:
Nb,Ta,Fe,Mn

Relationship of Natisite to other Species

9.AG.05AbswurmbachiteCuMn63+(SiO4)O8
9.AG.05BrauniteMn2+Mn63+(SiO4)O8
9.AG.05NeltneriteCaMn63+(SiO4)O8
9.AG.05Braunite-IICaMn143+(SiO4)O20
9.AG.10Långbanite(Mn2+,Ca)4(Mn3+,Fe3+)9Sb5+(SiO4)2O16
9.AG.15MalayaiteCaSn(SiO4)O
9.AG.15TitaniteCaTi(SiO4)O
9.AG.15VanadomalayaiteCaV4+(SiO4)O
9.AG.15Natrotitanite(Na0.5Y0.5)Ti(SiO4)O
9.AG.20Cerite-(Ce)(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
9.AG.20Cerite-(La)(La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3(HSiO4)4(OH)3
9.AG.20Aluminocerite-(Ce)(Ce,La,Ca)9(Al,Fe3+)(SiO4)3(HSiO4)4(OH)3
9.AG.25Trimounsite-(Y)Y2Ti2(SiO4)O5
9.AG.25Yftisite-(Y)(Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6
9.AG.30SitinakiteKNa2Ti4(SiO4)2O5(OH) · 4H2O
9.AG.35KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2O
9.AG.40bParanatisiteNa2Ti(SiO4)O
9.AG.45Törnebohmite-(Ce)(Ce,La)2Al(SiO4)2(OH)
9.AG.45Törnebohmite-(La)(La,Ce)2Al(SiO4)2(OH)
9.AG.50Kuliokite-(Y)Y4Al(SiO4)2(OH)2F5
9.AG.55ChantaliteCaAl2(SiO4)(OH)4
9.AG.60MozartiteCaMn3+(SiO4)(OH)
9.AG.60VuagnatiteCaAl(SiO4)(OH)
9.AG.65HatruriteCa3(SiO4)O
9.AG.70JasmunditeCa11(SiO4)4O2S
9.AG.75AfwilliteCa3(HSiO4)2 · 2H2O
9.AG.80BultfonteiniteCa2(HSiO4)F · H2O
9.AG.85ZoltaiiteBaV24+V123+(SiO4)2O19
9.AG.90Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O4
14.9.2LorenzeniteNa2Ti2(Si2O6)O3
14.9.3LintisiteLiNa3Ti2(Si2O6)2O2 · 2H2O
14.9.4DavaniteK2TiSi6O15
14.9.5KazakoviteNa6Mn2+Ti(Si6O18)
14.9.6TitaniteCaTi(SiO4)O
14.9.7OhmiliteSr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2O
14.9.8Lamprophyllite(Sr,K,Ba)2(Na,Ti,Mn2+,Fe3+)4Ti2(Si2O7)2O(O,OH,F)
14.9.9BenitoiteBaTi(Si3O9)
14.9.10BatisiteBaNaNaTi2(Si4O12)O2
14.9.11FresnoiteBa2Ti(Si2O7)O
14.9.12Joaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · H2O
14.9.13Orthojoaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(O,OH) · H2O
14.9.14StrontiojoaquiniteSr2Ba2(Na,Fe)2Ti2[Si4O12]2O2(O,OH)2 · H2O
14.9.15Bario-orthojoaquinite(Ba,Sr)4Fe2Ti2[Si4O12]2O2 · H2O
14.9.16Strontio-orthojoaquinite(Na,Fe)2Sr2Ba2Ti2[Si4O12]2O2(O,OH)2 · H2O
14.9.17BafertisiteBa(Fe2+,Mn2+)2Ti(Si2O7)O(F,OH)2
14.9.18HejtmaniteBa(Mn2+,Fe2+)2Ti(Si2O7)O(OH,F)
14.9.19Delindeite(Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2O
14.9.20Barytolamprophyllite(Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F)
14.9.21Trimounsite-(Y)Y2Ti2(SiO4)O5
14.9.22Perrierite-(Ce)(Ce,Ca,Th)4(Fe2+,Mg)Fe23+(Ti,Fe3+)2(Si2O7)2O8
14.9.23Chevkinite(Ce,Ca,Th)4(Fe,Mn)2(Ti,Fe)3[Si2O7]2O8
14.9.24Strontiochevkinite(Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8
14.9.25TisinaliteNa3H3(Mn,Ca,Fe)TiSi6(O,OH)18 · 2H2O
14.9.26NeptuniteNa2KLi(Fe2+,Mn2+)2Ti2(Si8O24)
14.9.27ManganoneptuniteNa2KLi(Mn2+,Fe2+)2Ti2[Si8O24]
14.9.28Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
14.9.29Astrophyllite(K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
14.9.30Hydroastrophyllite(H3O,K,Ca)3(Fe,Mn)5-65Ti2Si8(O,OH)31
14.9.31Magnesioastrophyllite(Na,K)4Mg2(Fe,Fe,Mn)5Ti2Si8O24(O,OH,F)7
14.9.32BaratoviteKCa7(Ti,Zr)2Li3Si12O36F2
14.9.34AenigmatiteNa2Fe52+Ti(Si6O18)O2
14.9.35SchorlomiteCa3(Ti,Fe3+)2((Si,Fe3+)O4)3
14.9.36TinaksiteK2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]
14.9.37Janhaugite(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2
14.9.38KoashviteNa6(Ca,Mn)(Ti,Fe)Si6O18 · H2O

Other Names for Natisite

Name in Other Languages:
German:Natisit
Spanish:Natisita

Other Information

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 Natisite

Reference List:
American Mineralogist (1976): 61: 339.

Doklady Akademii Nauk SSSR: 240: 78-80.

Internet Links for Natisite

Localities for Natisite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Khibiny Massif
          • Koashva Mt
[World of Stones 95:5-6, p64]
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
          • Yukspor Mt
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Khomyakov, A. P., Pushcharovskiy, D. Y., & Ronsbo, J. G. (1983). Clinophosinaite, Na3CaPSiO7, a new mineral. International Geology Review, 25(6), 731-734.
        • Lovozero Massif
Am. Min. 61, 339 (1976); Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Pavel M. Kartashov data
Mineral and/or Locality  
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