Eastonite (of Winchell)
A variety of Biotite
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Formula:
K2Mg5Al4Si5O20(OH)4
Colour:
Black
Name:
From Easton, Pennsylvania
Unique Identifiers
Mindat ID:
6781 (as Eastonite (of Winchell))
677 (as Biotite)
677 (as Biotite)
Long-form identifier:
mindat:1:1:6781:8 (as Eastonite (of Winchell))
mindat:1:1:677:2 (as Biotite)
mindat:1:1:677:2 (as Biotite)
GUID
(UUID V4):
(UUID V4):
541728b7-3ad5-4084-9e9d-cb4df1604880 (as Eastonite (of Winchell))
cb51e225-d11b-4412-8105-70b51cfd1df7 (as Biotite)
cb51e225-d11b-4412-8105-70b51cfd1df7 (as Biotite)
Physical Properties of Eastonite (of Winchell)
Colour:
Black
Cleavage:
Perfect
Perfect
Perfect
Chemical Properties of Eastonite (of Winchell)
Formula:
K2Mg5Al4Si5O20(OH)4
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 Eastonite (of Winchell)
Reference List: