Name/Title
EnstatiteEntry/Object ID
2015.1.3Description
Chemical Composition: SiO2
Crystal System: Triclinic System
Description: Common Name: Enstatite (Hypersthene)
Chemistry: (Mg,Fe)SiO3
Group: Inosilicates
Location: Quebec,Canada
Description: A polished sphere. Colors are blacks and greys. There are faint stripes and areas of silver sheen.
Physical Charateristics:
Enstatite is the magnesium endmember of the pyroxene silicate mineral series enstatite (MgSiO3) - ferrosilite (FeSiO3). The magnesium rich members of the solid solution series are common rock-forming minerals found in igneous and metamorphic rocks. The intermediate composition, (Mg,Fe)SiO3, has historically been known as hypersthene, although this name has been formally abandoned and replaced by orthopyroxene. When determined petrographically or chemically the composition is given as relative proportions of enstatite (En) and ferrosilite (Fs) (e.g., En80Fs20).
Fracture: Conchoidal
Hardness: 7 Quartz
Luster: Pearly
Rock Type: Sedimentary
Specific Gravity: 2.68-2.72
Streak: WhiteCollection
RAGM Mineral CollectionAcquisition
Accession
2013.1Source or Donor
Crater Rock Museum (Misc. donors)Acquisition Method
GiftLocation
Location
Shelf
CS-I-2Room
Curation StorageBuilding
Crater Rock MuseumDate
January 31, 2024Location
Display Case
DS-10Room
Delmar Smith HallBuilding
Crater Rock MuseumCategory
PermanentMoved By
Curtis GardnerDate
May 9, 2023Notes
Added current location while cleaning shelfLocation
Shelf
LeftCabinet
Case # 51Room
Delmar Smith HallBuilding
Crater Rock MuseumCategory
Permanent
