Help mindat.org|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 GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember 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

Hypersthene

This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Mg,Fe)SiO3
Colour:
Greyish white
Hardness:
5½ - 6
Unnecessary name for member of Enstatite-Ferrosilite series; name discredited by the CNMMN Pyroxene Subcommittee (1988).
Regarded as a synonym of Enstatite or Ferrosilite, but commonly regarded as a mid-way member between these two end-members. Most "Hypersthene" is ferroan enstatite.

Visit gemdat.org for gemological information about Hypersthene.

Classification of Hypersthene

Discredited
mindat.org URL:
http://www.mindat.org/min-1995.html
Please feel free to link to this page.

Physical Properties of Hypersthene

Vitreous, Silky
Colour:
Greyish white
Streak:
Greyish white greenish
Hardness (Mohs):
5½ - 6

Optical Data of Hypersthene

Type:
Biaxial (-)
RI values:
nα = 1.669 - 1.755 nβ = 1.674 - 1.763 nγ = 1.680 - 1.773
2V:
Measured: 70° to 90°, Calculated: 86°
Max Birefringence:
δ = 0.011 - 0.018
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
weak

Chemical Properties of Hypersthene

Formula:
(Mg,Fe)SiO3
Essential elements:
All elements listed in formula:

Other Names for Hypersthene

Name in Other Languages:

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 Hypersthene

Reference List:
Klaproth, M.H. (1810): Chemische Untersuchung des Hypersthens, Beiträge zur chemischen Kenntniss der Mineralkörper, Fünfter Band, Rottmann Berlin, 37-40

Mineralogical Magazine 52 (1988), 535.

Internet Links for Hypersthene

Localities for Hypersthene

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: August 28, 2015 03:19:41 Page generated: August 27, 2015 14:17:09