“Black tabular crystal of intermediate Crichtonite-Senaite mineral with spots and zones of Desauite-(Y) composition. Analytical data are available at the daughter photo. Associating minerals are fibrous crystals of yellow Rutile and transparent colourless Albite crystals. Roberto Bracco photo, Pavel M. Kartashov analytical data and collection.”

“Full view of the sample. Four black tabular crystals of intermediate Crichtonite-Senaite mineral on white Albite matrix are in field of view. The crystal from previous photo which contains spots and zones of Desauite-(Y) composition is the rightmost. Analytical data are available at the daughter photo. Roberto Bracco photo, Pavel M. Kartashov analytical data and collection.”

“EDS spectrum of Desauite-(Y) from Fibbia. Composition of the mineral correspond to the spectrum is (Sr0.36Pb0.20La0.16Ce0.11Ca0.04)1.03(Y0.90U0.08Th0.02)1.00(Fe2+1.49Mn2+0.22Sc0.13Y0.08Zn0.08)2.00(Fe3+5.05Ti0.77V3+0.13 Fe2+0.05)6.00Ti12O38.00 with content of Y2O3 6.16 mas.%. Pavel M. Kartashov analytical data, collection and photo.”

“Position of points of analyses of Crichtonite group minerals from Fibbia. Spectrum and composition of Desauite-(Y) from point #3 you may to see at previous photo. Point 32 corresponds to composition of Senaite and the point #4 corresponds to Crichtonite. Both them are low-uranoan or uranium free. Pavel M. Kartashov analytical data, collection and photo.”