aeschynite-(Ce)
Sign in to saveAeschynite-(Ce) (or Aschynite, Eschinite, Eschynite) is a rare earth mineral of cerium, calcium, iron, thorium, titanium, niobium, oxygen, and hydrogen with chemical formula . Its name comes from the Greek word αισχύνη ("aeschyne") for "shame" because early chemists had difficulty with separations of titanium from zirconium.
Key facts
- Mineral.name
- Aeschynite-(Ce)
- Mineral.category
- Oxide minerals
- Mineral.IMAsymbol
- Aes-Ce
- Mineral.strunz
- 4.DF.05
- Mineral.dana
- 08.03.06.01
- Mineral.system
- Orthorhombic Dipyramidal class
- Mineral.symmetry
- H-M symbol: (2/m 2/m 2/m) Space group: Pmnb
- Mineral.unit cell
- a = 11.08, b = 7.56 c = 5.37 [Å]; Z = 4
- Mineral.molweight
- 305.70 g/mol
- Mineral.color
- Brown, light brown, brownish black, yellow, black
- Mineral.habit
- Acicular, massive
- Mineral.cleavage
- None
- Mineral.fracture
- Brittle - conchoidal
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 5 - 6
- Mineral.luster
- Adamantine, resinous to waxy, sub-metallic; dull when altered
- Mineral.streak
- Nearly black to brown
- Mineral.diaphaneity
- Transparent to translucent
via Wikipedia infobox
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Aeschynite-(Ce) (or Aschynite, Eschinite, Eschynite) is a rare earth mineral of cerium, calcium, iron, thorium, titanium, niobium, oxygen, and hydrogen with chemical formula . Its name comes from the Greek word αισχύνη ("aeschyne") for "shame" because early chemists had difficulty with separations of titanium from zirconium.
The "-(Ce)" means it has more cerium than the yttrium variety aeschynite-(Y). Its Mohs scale rating is 5–6.