William Lechner's Image Gallery

Dakota Matrix was founded in 1996 and has offered systematic and rare mineral specimens online since 1998.

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Images from William Lechner

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William Lechner's Image Gallery With 1 Images

Rontgenite-(Ce) Image

Images:

Rontgenite-(Ce): Ca2(Ce,La)3(CO3)5F3
Thorbastnasite: Th(Ca,Ce)(CO3)2F2·3(H2O)

Comments: Tny white, acicular thorbastnasite crystals to less than 1 mm in sprays. The thorbastnasite forms the cores the 'needles', with white epitaxial rontgenite-(Ce) coating.
Location: Mont Saint-Hilaire, Quebec, Canada. Scale: Needle Size < 1 mm.
© William Lechner / Dakota Matrix

Thorbastnasite Image

Images:

Thorbastnasite: Th(Ca,Ce)(CO3)2F2·3(H2O)
Rontgenite-(Ce): Ca2(Ce,La)3(CO3)5F3

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