Lindvikskollen feldspar quarry is situated in the western part of the Lindvikskollen-Kalstadgangen pegmatite dike, at the very top of the Mt. Lindvikskollen. The quarry has been abandoned since the early 1930s. See the entry on the Lindvikskollen-Kalstadgangen pegmatite for more information about the pegmatite.
This is the type locality of Hellandite-(Y). The mineral was first discovered in 1903. More than 200 crystals of hellandite-(Y) were collected between 1903-1922 at the dumps of the quarry. The core that hosted the hellandite was already quarried out when Brøgger described Hellandite in 1903.
The pegmatite with its quarries and prospects will now be included in Gea Norvegica, a Geopark.
References:
- Brøgger, W. C. (1903): Über Hellandit, ein neues Mineral (Vorlaüfige Mittheilungen). Nyt Magazin for Naturvidenskaberne 41, 213-221
- Schei , P. (1904): On some new occurrences of titanite from Kragerø. Nyt Magazin for Naturvidenskaberne 42, 35-38
- Brøgger, W. C. (1906): Hellandit von Lindvikskollen bei Kragerö. Zeitschrift für Kristallographie und Mineralogie 42, 417-439
- Brøgger, W. C. (1922): Neue beobachtungen über die krystallformen des hellandits. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I. Mat-Naturv. Klasse 1922. 11, 3-16 + plates I-IV
- Green, J. C. (1956): Geology of the Storkollen-Blankenberg area, Kragerø, Norway. Norsk Geologisk Tidsskrift 36, 89-140
- Kristiansen, R. (1993): Caysichitt-(Y) og Chernovitt-(Y) fra Lindvikskollen, Kragerø; to nye mineraler for Norge. STEIN 20 (2), 125-128
- Larsen, A. O., Nordrum, F. S. & Austrheim, H. (1999): Turmaliner i Norge. Bergverksmuseets Skrift 15: 21-30 [with an analysis of schorl from this locality]
- Larsen, K. E.(2008): Lindvikskollen-Kalstadgangen, Kragerø- en klassisk norsk granittpegmatitt. Bergverksmuseet Skrift 38, 37-44
Mineral List:18 entries listed. 13 valid minerals. 1 type locality (valid mineral).
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