UV MineralsNeed help with Franklin NJ uncertainties
Hello Frogophiles:
Attached are some photos of uncertainties from the Roy & Martha Epting Franklin collection dating from 30s-40s. Some background is here: https://www.mindat.org/mesg-114-443313.html
Most of it pretty straightforward, but I'm not too good with some of the rarities from those olden days, so please chime in. All images are stacked and color corrected.
Here is a multi-color piece with a patch of bright margarosanite? (very fine-grained and colorless) but the upper right is a patch of something less bright, with perhaps "peachy" color and so may be prehnite. In daylight it is a thin white layer of tiny clear platy crystals, very adamantine. I dont see hexagonal or pearly luster so not inclined to think minehillite. The yellow spots (under SW) are colorless, glassy grains with cleavage so I am thinking wollastonite. The red spots (under SW) appear rather like white masses so maybe roeblingite. 8 cm across
Looks like a 5 color rock, but could be 8. Is there both red axinite-(Mn) and red calcite? Is there both yellow pectolite and yellow wollastonite? Use longwave. Is there white minehillite amongst the margarosanite? Use midwave. 
I know this might elicit a collective gasp from the Franklin specimen collector community (indeed, maybe from a lot of specimen collectors), but man, that rock looks like it would make a very cool thin section... heh heh. And in an uncovered polished section, the fluorescence is still preserved. 
Blue margarosanite, orange Clinohedrite, red manganaxinite, pink prehnite, green willemite, pale blue could be xonotlite, weak orange possible pectolite 
Thanks for the feedback. OK, did some more examination on this. The red SW fluorescence is all calcite. Under MW, beside the dull red of the margarosanite (no sign of minehillite) there is mostly a dull yellow from the bright SW yellow areas so I believe this is thus pectolite - it occurs as glassy grains and not coatings. On the reverse side there is much clinohedrite that fluoresces brightest under SW, faint under MW and moderate under LW, but the yellow areas in the photo do not do this. The pale blue in the lower center may be a xonotlite crust, not really visible in daylight.
One area of more interest is the dull blue patches at center far right within the lower part of the prehnite area and adjacent to a window into underlying andradite (which has tiny crystal faces, BTW). The dull blue is from a layer of white, porcelaineous mineralization between the andradite and the surface layer of prehnite. Under both MW and LW it is has a yellow-white (cream) color and is brighter than under SW, though not outstanding. I thought maybe aragonite but there is no reaction to acid. It has a rough surface from impressions of formerly overlying prehnite xls. The closest species with the proper daylight and UV color range and associates appears to be datolite.
