Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Ammonioleucite

Big Photo

Tatarazawa, Fujioka, Gunma Prefecture, Kanto Region, Honshu Island, Japan
© Knut Eldjarn

Formula:
(NH
 
4
,K)AlSi
 
2
O
 
6
System:TetragonalColour:White
Hardness:5½ - 6
Name:For the chemical composition and the relationship with leucite.


Replacement of analcime crystals.

Classification of Ammonioleucite

IMA status:Approved
Strunz 8th edition ID:8/J.05-20
Nickel-Strunz 10th (pending) edition ID:9.GB.05

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
B : Chains of single connected 4-membered rings
Dana 8th edition ID:76.2.2.2

76 : TECTOSILICATES Al-Si Framework
2 : Al-Si Framework Feldspathoids and related species
Hey's CIM Ref.:16.5.4

16 : Silicates Containing Aluminum and other Metals
5 : Aluminosilicates of Cs, NH4 and Cu
mindat.org URL:http://www.mindat.org/min-206.html
Please feel free to link to this page.

Type Occurrence of Ammonioleucite

Type Locality:Tatarazawa, Fujioka, Gunma Prefecture, Kanto Region, Honshu Island, Japan
Year of Discovery:1986
Geological Setting of type material:Cavities in a hydrothermally altered greenschist
Associated Minerals at type locality:
Analcime

Physical Properties of Ammonioleucite

Lustre:Vitreous, Resinous
Diaphaneity (Transparency):Translucent
Colour:White
Hardness (Mohs):5½ - 6
Density (measured):2.29 g/cm3
Density (calculated):2.24 g/cm3

Crystallography of Ammonioleucite

Crystal System:Tetragonal
Cell Parameters:a = 13.21Å, c = 13.71Å
Ratio:a:c = 1 : 1.038
Unit Cell Volume:V 2,392.45 ų (Calculated from Unit Cell)
Twinning:All twinned parallel to either a or b.

Optical Data of Ammonioleucite

Type:Uniaxial (+)
RI values: nω = 1.518 nε = 1.518
Maximum Birefringence:δ = 0.000

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

Chemical Properties of Ammonioleucite

Formula:
(NH
 
4
,K)AlSi
 
2
O
 
6
Essential elements:Al, H, N, O, Si
All elements listed in formula:Al, H, K, N, O, Si

Relationship of Ammonioleucite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.GB.05Analcime
Na
 
2
[Al
 
2
Si
 
4
O
 
12
] · 2H
 
2
O
9.GB.05Hsianghualite
Ca
 
3
Li
 
2
Be
 
3
[F
 
2
|(SiO
 
4
)
 
3
]
9.GB.05Lithosite
K
 
6
Al
 
4
Si
 
8
O
 
25
·2H
 
2
O
9.GB.05Leucite
KAlSi
 
2
O
 
6
9.GB.05Pollucite
(Cs,Na)
 
2
[Al
 
2
Si
 
4
O
 
12
] · 2H
 
2
O
9.GB.05Wairakite
Ca[Al
 
2
Si
 
4
O
 
12
] · 2H
 
2
O
9.GB.10Laumontite
CaAl
 
2
Si
 
4
O
 
12
·4H
 
2
O
9.GB.15Yugawaralite
CaAl
 
2
Si
 
6
O
 
16
·4H
 
2
O
9.GB.20Roggianite
Ca
 
2
Be(OH)
 
2
Al
 
2
Si
 
4
O
 
13
·2.5H
 
2
O
9.GB.25Goosecreekite
Ca[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O
9.GB.30Montesommaite
(K,Na)
 
9
Al
 
9
Si
 
23
O
 
64
·10H
 
2
O
9.GB.35Parthéite
CaAl
 
2
Si
 
2
O
 
8
·2H
 
2
O
Related Minerals - Hey's Index Grouping:
16.5.1Pollucite
(Cs,Na)
 
2
[Al
 
2
Si
 
4
O
 
12
] · 2H
 
2
O
16.5.2Nanpingite
CsAl
 
2
[(OH,F)
 
2
|AlSi
 
3
O
 
10
]
16.5.3Buddingtonite
(NH
 
4
)[AlSi
 
3
O
 
8
]
16.5.5Tobelite
(NH
 
4
,K)Al
 
2
[(OH)
 
2
|AlSi
 
3
O
 
10
]
16.5.6Ajoite
(K,Na)Cu
 
7
[(OH)
 
6
|AlSi
 
9
O
 
24
] · 3H
 
2
O
16.5.7Papagoite
CaCu[H
 
3
AlSi
 
2
O
 
9
]

Other Names for Ammonioleucite

German names:
Ammonioleucit
Russian names:
Аммониолейцит
Spanish names:
Ammonioleucita

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 Ammonioleucite

Reference List:American Mineralogist: 71: 1022-1027.

Mineralogical Record: 30: 5-6.

Mineralogical Journal: 20: 105-112.

Internet Links for Ammonioleucite

Search Engines:
  • Look for Ammonioleucite on Google
  • Look for Ammonioleucite images on Google
    • External Links:
  • Look for Ammonioleucite on Webmineral
  • Look for Ammonioleucite on Athena Mineralogy
  • Look for Ammonioleucite on Wikipedia
  • Look for Ammonioleucite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Ammonioleucite in the Natural History Museum (London) online catalogue
  • Ammonioleucite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • e-Rocks - Mineral Auctions and Sales
  • Lapis Mineral Magazin
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Buy Minerals and Crystals from Crystalarium.com
  • Find Ammonioleucite on www.crystalclassics.co.uk
  • Search for Ammonioleucite on minvision.com
  • High-end worldwide specimens & outstanding customer service
  • Buy from David K Joyce minerals
  • Wendel Minerals - Auktion & Shop
  • Fabre Minerals - search for Ammonioleucite specimens
  • rare and unusual minerals mainly crystallized
  • Rare and Unusual minerals at Mineralogical Research Company
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Localities for Ammonioleucite

    (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.
    Japan
     
    • Honshu Island
      • Kanto Region
        • Gunma Prefecture
    		The Mineral Species of Japan (5th ed) Matsubara
    American Mineralogist (1986): 71, 1022-1027.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. 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. If you would like to add information to improve the quality of our database, then click here to register.