|
|
|
|
|
Geography Categories
|
| Definition Of: |
Vyuntspakhkite-(Y)
 General Information: Chemical Formula:(Y,Yb,Er)4Al2AlSi5O18(OH)5 Composition:(Molecular Weight = 1,082.32 gm)Yttrium 19.71 % Y Erbium 6.18 % ErYtterbium 19.19 % YbAluminum 7.48 % AlSilicon 12.97 % SiHydrogen 0.47 % H Oxygen 34.00 % O Empirical Formula: Y2.4Yb1.2Er0.4Al3Si5O18(OH)5 IMA Status:Approved IMA 1987 Physical Properties: Cleavage:None Color:colorless or orange. Density:4.02 Diaphaniety:Transparent Hardness:6-7 - Orthoclase-Quartz Luster:Adamantine Streak:white More details...
|
| |
Mineralogy Dictionary INDEX:
List of Terms: Terms beginning with "A", Page 1 |
|
Page Number:
1 2 3 4 A: Page 1 of 4.
|
|
|
| Copyright © 2008 Geography-Dictionary.org. All rights reserved. |
|
|