Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery


This page is currently not sponsored. Click here to sponsor this page.
Named in 1823 by Henry J. Brooke in honor of Parker Cleaveland [January 15, 1780 Rowley (Byfield), Massachusetts, USA - August 15, 1758, in Brunswick, Maine, USA], professor of geology and mineralogy at Bowdoin College in Maine 1805-1858. In 1816 Cleaveland wrote the first mineralogy textbook authored by a citizen of the USA. Despite the title page date, the textbook was actually released in January 1817. The textbook was noted for its unification of European schools of thought and was also popular in its second edition of 1822. Cleavelandite had been described earlier in 1817 by Johann Friedrich Ludwig Hausmann with the name "kieselspath". In 1815, Hans Peter Eggertz named granular and radiated albite, probably identical to cleavelandite of Brooke. In 1936, Harold Lattimore Alling defined cleavelandite as a triclinic mineral, suggesting a difference from true albite as well as "analbite". Fisher (1968) studied cleavelandite from Chesterfield, Massachusetts, USA, the type locality, but did not study type specimens, and proposed that true cleavelandite should be restricted to warped platy masses of mineral with lamellae parallel to (010) and "lack other well-defined crystal faces, and may be twinned on the albite law". This definition would not include most specimens called "cleavelandite", especially those cleavelandites grown into open cavities, although such "cleavelandite" is also known from the type locality. The current use of the varietal name generally includes cavity hosted crystal aggregates.
A variety of Albite

Platy albite, generally found in pegmatite.

Classification of Cleavelandite

Chemical Properties of Cleavelandite

Elements listed in formula:

Other Names for Cleavelandite

Name in Other Languages:
Simplified Chinese:叶钠长石
Traditional Chinese:葉鈉長石

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 Cleavelandite

Reference List:
Dana's New Mineralogy, 8th ed., 1997, by Gaines,

Manual of Mineralogy after James D. Dana, 1977, by C. Klein & C.S. Hurlbut, Jr.

Maine Mineralogy, V.-I, 1994, by V. King & E. Foord.

Maine Mineralogy, V.-II, 2000, by V. King.

Internet Links for Cleavelandite URL:
Please feel free to link to this page.
The following Cleavelandite specimens are currently listed for sale on

Localities for Cleavelandite

Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: June 23, 2017 21:46:35 Page generated: June 22, 2017 03:54:42
Go to top of page