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IMA2008-007

Formula:
(Y,REE,Ca,Na,Mn)
 
15
Fe
2+
 
Ca(P,Si)Si
 
6
B
 
3
(O,F)
 
48
System:Trigonal
This page provides mineralogical data about IMA2008-007.

Classification of IMA2008-007

IMA status:Approved 2008
Nickel-Strunz 10th (pending) edition ID:9.AJ.35

9 : SILICATES (Germanates)
A : Nesosilicates
J : Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO4
Dana 8th edition ID:54.2.5.4

54 : NESOSILICATES Borosilicates and Some Beryllosilicates
2 : Borosilicates and Some Beryllosilicates with B in [4] coordination
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Crystallography of IMA2008-007

Crystal System:Trigonal
Class (H-M):3m - Ditrigonal Pyramidal
Space Group:R3m
Cell Parameters:a = 10.7527Å, c = 27.4002Å
Ratio:a:c = 1 : 2.548
Unit Cell Volume:V 2,743.59 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
4.441 (36)
3.144 (77)
3.028 (45)
2.968 (100)
2.672 (30)
1.806 (30)
1.782 (32)
1.713 (32)

Chemical Properties of IMA2008-007

Formula:
(Y,REE,Ca,Na,Mn)
 
15
Fe
2+
 
Ca(P,Si)Si
 
6
B
 
3
(O,F)
 
48
Essential elements:
All elements listed in formula:B, Ca, F, Fe, Mn, Na, O, P, Si, Y

Relationship of IMA2008-007 to other Species

Related Minerals - Nickel-Strunz Grouping):
9.AJ.05Grandidierite
(Mg,Fe
2+
 
)(Al,Fe
3+
 
)
 
3
[O
 
2
|BO
 
3
|SiO
 
4
]
9.AJ.05Ominelite
(Fe
2+
 
,Mg)(Al,Fe
3+
 
)
 
3
[O
 
2
|BO
 
3
|SiO
 
4
]
9.AJ.10Dumortierite
(Al,Fe
3+
 
)
 
7
[O
 
3
|BO
 
3
|(SiO
 
4
)
 
3
]
9.AJ.10Holtite
(Ta,Sb)Al
 
6
[O
 
3
|BO
 
3
|(SiO
 
4
)
 
3
]
9.AJ.10Magnesiodumortierite
(Mg,Ti,[](Al,Mg)
 
2
Al
 
4
Si
 
3
O
 
18-y
(OH)
 
y
B y = 2-3
9.AJ.15Garrelsite
Ba
 
3
NaSi
 
2
B
 
7
O
 
16
(OH)
 
4
9.AJ.20Bakerite
Ca
 
4
B
 
4
[(OH)
 
4
|HBO
 
4
|(SiO
 
4
)
 
3
]
9.AJ.20Datolite
CaB[OH|SiO
 
4
]
9.AJ.20Gadolinite-(Ce)
(Ce,La,Nd,Y)
 
2
Fe
2+
 
Be
 
2
[O|SiO
 
4
]
 
2
9.AJ.20Gadolinite-(Y)
Y
 
2
Fe
2+
 
Be
 
2
[O|SiO
 
4
]
 
2
9.AJ.20Hingganite-(Ce)
Ce
 
2
□Be
 
2
Si
 
2
O
 
8
(OH)
 
2
9.AJ.20Hingganite-(Y)
(Y,Yb,Er)Be[OH|SiO
 
4
]
9.AJ.20Hingganite-(Yb)
(Yb,Y)Be[OH|SiO
 
4
]
9.AJ.20Homilite
Ca
 
2
(Fe
2+
 
,Mg)B
 
2
[O|SiO
 
4
]
 
2
9.AJ.20Melanocerite-(Ce)
(Ce,Ca)
 
5
(Si,B)
 
3
O
 
12
(OH,F)·nH
 
2
O
9.AJ.20Minasgeraisite-(Y)
Y
 
2
CaBe
 
2
[O|SiO
 
4
]
 
2
9.AJ.20Calcybeborosilite-(Y)
(Y,Ca)
 
2
(B,Be)
 
2
[SiO
 
4
]
 
2
(OH,O)
 
2
9.AJ.25Stillwellite-(Ce)
(Ce,La,Ca)BSiO
 
5
9.AJ.30Cappelenite-(Y)
Ba(Y,Ce)
 
6
Si
 
3
B
 
6
O
 
24
F
 
2
9.AJ.35Okanoganite-(Y)
(Na,Ca)
 
3
(Y,Ce)
 
12
Si
 
6
B
 
2
O
 
27
F
 
14
9.AJ.35Vicanite-(Ce)
(Ca,Ce,La,Th)
 
15
As
5+
 
(As
3+
0.5
,Na
 
0.5
)Fe
3+
 
Si
 
6
B
 
4
O
 
40
F
 
7
9.AJ.35Hundholmenite-(Y)
(Y,REE,Ca,Na)
 
15
(Al,Fe
3+
 
)(Ca
 
x
As
3+
1-x
)(Si,As
5+
 
)Si
 
6
B
 
3
(O,F)
 
48
9.AJ.40Jadarite
LiNaSiB
 
3
O
 
7
(OH)

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 IMA2008-007

Reference List:IMA website - Proposals approved in May 2008

Internet Links for IMA2008-007

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