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Photo Gallery:
15N-5VLSrebrodolskite Ca2Fe3+2O5 , Gehlenite Ca2Al[AlSiO7] , Larnite Ca2SiO4
Dimensions: 3 cm x 1 cm x 1 cm
Field of View: 1.8 mm
Largest Crystal Size: 1 mm
Plane-polarized light (PPL) image of srebrodolskite (deep red) with gehlenite (elongate and squarish; near colorless to very pale yellow) and scattered larnite (also near colorless and difficult to distinguish from gehlenite in the PPL view; differentiates better in XP) in thin section FKM-383; https://www.rockptx.com/fkm-376-to-fkm-400/#FKM-383
PVJ-X76Gehlenite Ca2Al[AlSiO7] , Anorthite Ca(Al2Si2O8) , Glass
Dimensions: 0.5 cm
A small scrap of para-lava, formed during the melting and solidification of sedimentary rock as a result of naturally occurring coal bed fires. Brown melilite, primarily gehlenite, with white anorthite and bubbly appearing glass. Specimen also contains minute crystals of esseneite, the reddish-brown areas near the center of the image.
S419-337 N5906N
17H-9L3Ferroindialite (Fe2+,Mg)2Al4Si5O18 , Anorthite Ca(Al2Si2O8)
Dimensions: 0.5 cm x 0.5 cm x 0.5 cm
Ferroindialite xx ( RED ) IMA-2013-016
Intergrown with Anorthite in "paralava".
Specimen has been analysed according to the lable.
From a german collection made up by several collectors.
PVJ-X76Esseneite CaFe3+[AlSiO6]
Field of View: 0.2 mm
Extremely small cluster of reddish-brown prismatic translucent esseneite crystals in gehlinite / anorthite / glass / para-lava, formed as a result of natural coal combustion.
S419-338 N5906N
DVC-QEWYe'elimite Ca4Al6(SO4)O12 , Srebrodolskite Ca2Fe3+2O5 , Gehlenite Ca2Al[AlSiO7] , Larnite Ca2SiO4
Field of View: 1.8 mm
Largest Crystal Size: 400 μm
Plane-polarized light (PPL) image of colorless euhedral isometric crystals of ye'emilite, accompanied by srebrodolskite (deep red-brown), gehlenite (elongate; near colorless to very pale yellow) and larnite (also near colorless and difficult to distinguish from gehlenite in the PPL view; differentiates better in XP), in thin section FKM-383. All minerals were identified by a combination of optical properties and EPMA chemical analysis; https://www.rockptx.com/fkm-376-to-fkm-400/#FKM-383