Hellandite-(Y) Image
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Hellandite-(Y)
Mineral:
Hellandite-(Y)
:
(Ca,REE)4(Y,Ce)2(Al,[ ])2[Si4B4O22](OH)2
Comments:
Short-prismatic crystal of dark-brown hellandite-(Y) in granitic pegmatite.
Location:
Tusion River Valley, Pamir Mts, Viloyati Mukhtori Gorno-Badakhshan (Viloyati Badakhshoni Kuni), Tajikistan.
Scale:
FOV is 2x1.7 cm.
Copyright:
©
Pavel M. Kartashov
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