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Mont Saint-Hilaire Unknowns - 50's
Mont Saint-Hilaire Unknowns - 50's
 | signifies that this unknown is on the fast-track toward description. |
 | means that this UK will need some help if it wants to go forward. |
 | indicates that this unknown is at a dead end for the time being. |
| UK# 51 - (Al hydroxide (related to nordstrandite)) |
Properties - white, translucent to opaque balls or irregular powdery patches Occurrence - silicate and sodalite syenite cavities and pegmatites Associated minerals - albite, analcime, microcline, nordstrandite, polylithionite, pyrite and sphalerite (Top) |
| UK# 52 - (Hydrous K, Na, Mn, Fe silicate) |  © Modris Baum |
Properties - red to reddish brown platy crystals forming spherical aggregates; irregular grains with curved crystal faces Occurrence - pegmatites Associated minerals - albite, aegirine, analcime, ancylite-(Ce), calcite, microcline, pyrite, steacyite, vinogradovite and others (Top) |
| UK# 52A - (Hydrous K, Na, Mn, Fe silicate) |
Properties - not distinguishable from UK# 52 Occurrence - pegmatites Associated minerals - Same as UK# 52 (Top) |
| UK# 53 - (Na B silicate) |  © Stephan Wolfsried |
Properties - colorless, white, pink, pale blue, vitreous transparent to translucent short hexagonal crystals with striations along c, botryoidal aggregates, balls and radiating clusters of prismatic individuals; heavily twinned (under polarizing scope) Occurrence - sodalite xenoliths Associated minerals - albite, cancrinite, erdite, lintisite, makatite, nalipoite, phosinaite-(Ce), rasvumite, sérandite, sidorenkite, silinaite, steenstrupine, tugtupite, ussingite, villiaumite, zakharovite and UK# 53A (Top) |
| UK# 53B - (NaB silicate) |
Properties - similar to UK# 53, hexagonal modification to UK# 53 Occurrence - sodalite xenoliths Associated minerals - similar to UK# 53 (Top) |
| UK# 55 - (Copper sulfide) |
Properties - irregular grains, sub metallic, black with a violet tint Occurrence - sodalite xenolith Associated minerals - analcime, griceite, lovozerite, ussingite, villiaumite and 3 unidentified secondary phases (Top) |
| UK# 56 - (Hydrous Ca Nb oxide) |
Properties - white balls of silky fibers, blades Occurrence - hornfels (in albite-quartz veins) Associated minerals - albite, ancylite-(Ce), beryl, muscovite, pyrrhotite, quartz and siderite (Top) |