polyhalite: References & Edit History
Article Contributors
Primary Contributors
-
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
Other Encyclopedia Britannica Contributors
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Invalidated site: Amethyst Galleries' Mineral Gallery - Polyhalite. | Jan 07, 2019 | ||
| Added new Web site: Amethyst Galleries' Mineral Gallery - The Mineral Polyhalite. | Jun 04, 2008 | ||
| Added new Web site: Mindat.org - Polyhalite. | May 15, 2008 | ||
| Added new Web site: Mineralogy Database - Polyhalite Mineral Data. | May 15, 2008 | ||
| Added new Web site: Amethyst Galleries' Mineral Gallery - Polyhalite. | May 15, 2008 | ||
| Article revised and updated. | Dec 08, 2006 | ||
| Article added to new online database. | Jul 20, 1998 |
View Changes:
Article History
Revised:
By: