NaFe3+[Si2O6]
[Chemical composition] Usually NaFe3+Ca(Mg, Fe2+) is substituted to form neonite, which can be regarded as an intermediate product between neon and ordinary pyroxene.
[crystal structure] monoclinic system,
[Form] Crystals are often needle-like, columnar, and more monomorphic (see Figures G-30, G-31).
Figure G-30 neolithic crystal
((a) quoted from Pan Zhaoyu et al., 1993, (b), (c) according to Zhao Shanrong, Wang Wenkui, produced in the Kuiqi rock mass cave in Fujian, 1990) Oblique column: {110}, {111}, { 461},{Figure G-31 The neon crystal is columnar, column mask vertical
[Physical properties] Dark green; streaks are colorless; glass luster. The cleavage {110} is complete with an angle of 87°. The hardness is 6, and the relative density is 3.55 to 3.60.
[genesis and occurrence] is the main rock-forming mineral of alkaline magmatic rock.
[identification characteristics] are characterized by green, long columnar crystal form, cleavage and alkaline rock occurrence.
[Main use] Only mineralogical and petrological.
Air Purifier,Air Purifier Filters,Multifunctional Air Purifier,Home Hepa Air Purifier
Leeyo Pilot Electric Technology Co., Ltd , https://www.nbleeyo-pilot.com