Name/Title
InesiteEntry/Object ID
2009.62.13Description
Chemical Composition: Ca2Mn7Si10O28(OH)2 - 5H2
Crystal System: Triclinic System
Description: Common Name: Inesite
Chemistry: Ca2Mn7Si10O28(OH)2 - 5H2O
Group: Silicates
Location: China
Description: Very thin almost sheetlike. Very spiny with tiny crystals, a dark salmon color.
PHYSICAL CHARACTERISTICS:
Color is pink to orange or flesh-red to rose.
Luster is vitreous.
Transparency: Crystals are generally translucent.
Crystal System is triclinic; bar 1
Crystal Habits include prismatic crystals with chisel-like terminations. Also tabular and fibrous and in radiating aggregates and sphericules.
Cleavage is good in one direction and perfect in another.
Fracture is uneven.
Hardness is 6
Specific Gravity is approximately 3.0 (average for translucent minerals)
Streak is pale pink.
Other Characteristics: Tarnishes to a brown color.
Associated Minerals are rhodonite, serpentine, axinite, rhodochrosite and apophyllite.
Best Field Indicators are crystal habit, color, associations and luster.
Fracture: Uneven
Hardness: 6 Orthoclase
Luster: Vitreous
Occurrence: Late stage hydrothermal mineral in manganese deposits.
Rock Type: Sedimentary
Specific Gravity: 3.0
Streak: Pale pink
Texture: Crystaline
Variety: Inesite is not a common mineral prismatic crystals have a slanted or "chisel-shaped" termination. At first glance the shorter crystals may be mistaken for rhombohedrons which have six equally slanted faces. Inesite will show only one steeply slanted face, while the other faces have a much less inclined slant. This is important for identification because the pink to rose colored mineral rhodochrosite forms rhombohedronsCollection
RAGM Mineral CollectionAcquisition
Accession
2009.62Source or Donor
Museum Collection of MineralsAcquisition Method
DonationDimensions
Width
4-3/4 inDepth
1/2 inLength
5 inWeight
1.86 ozDimension Notes
Dimension taken at widest pointsLocation
Location
Shelf
CS-D-2Room
Curation StorageBuilding
Crater Rock MuseumCategory
StorageMoved By
Curtis GardnerDate
January 3, 2024Location
Container
LeftDrawer
Top shelfShelf
Left side, Left sideWall
South wallRoom
Delmar Smith HallBuilding
Crater Rock MuseumCategory
PermanentMoved By
Scott LonganDate
August 5, 2009Location
Cabinet
H-6 rearWall
NorthBuilding
Storage (old gift shop upstairs)Category
Permanent