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Thortveitite Group
Formula:
REE
2
Si
2
O
7
A group of rare-earth disilicates with the general formula REE
2
Si
2
O
7
; the closely related Ca-Zr-disilicate
gittinsite
is also included.
Classification of Thortveitite Group
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Chemical Properties of Thortveitite Group
Formula:
REE
2
Si
2
O
7
Relationship of Thortveitite Group to other Species
Minerals in Group:
Keiviite-(Y)
:
(Y,Yb)
2
[Si
2
O
7
]
Keiviite-(Yb)
:
(Yb,Y)
2
[Si
2
O
7
]
Thortveitite
:
(Sc,Y)
2
[Si
2
O
7
]
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.
Internet Links for Thortveitite Group
Search Engines:
Look for Thortveitite Group on Google
Look for Thortveitite Group images on Google
Mineral Dealers:
Wendel Minerals - Auktion & Shop
High-end worldwide specimens & outstanding customer service
Fabre Minerals - search for Thortveitite Group specimens
Buy from David K Joyce minerals
The Arkenstone - Fine Minerals
Buy Minerals and Crystals from Crystalarium.com
rare and unusual minerals mainly crystallized
DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
Buy fine minerals and gemstones from Pala International
SpiriferMinerals.com - high quality specimens
Find Thortveitite Group on www.crystalclassics.co.uk
Edwards Minerals - Fine Specimens
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