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Rasvumite : KFe2S3 | |
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Kirovskii apatite mine (Kirovsky Mine; Kirov Mine), Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia A 4 mm crystal of Rasvumite on Natrolite from the Kirovskii mine, Khibiny, Kola, Russia. Partially altered to orange-brown FexSy. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 120558 View Count: 229 |
Rasvumite : KFe2S3 | |
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Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia This specimen features a sharp freestanding rasvumite [possibly djerfisherite, see http://www.mindat.org/mesg-7-75510.html] on matrix. I am told that , at 6-7mm, this freestanding rasvumite crystal is quite exceptional. 3.6 x 3.1 x 2.6 cm |
| © Rob Lavinsky | Photo ID: 33969 View Count: 419 |
Rasvumite : KFe2S3, Aegirine : NaFe3+[Si2O6] | |
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Material'naya Adit, Yukspor Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia This rasvumite crystal is partially altered, but colour and metallic lustre of fresh mineral is still well visible. Orange rust-like product is alkali-free iron sulphide close to pyrrhotite. Associating mineral is black aegirine-diopside. FOV is ~ 6x5 mm. Collected by Alexandr Samsonov in 1994 on dumps of Material'naya adit. Pavel M. Kartashov ... |
| © Pavel M. Kartashov | Photo ID: 120565 View Count: 140 |
Rasvumite : KFe2S3, Lamprophyllite : (Sr,K,Ba)2(Na,Ti,Mn2+,Fe3+)4Ti2[O|(O,OH,F)|Si2O7]2, Aegirine-augite : (Na,Ca)(Fe3+,Fe2+,Mg,Al)Si2O6, Aegirine : NaFe3+[Si2O6] | |
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Material'naya Adit, Yukspor Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia Large partially altered crystal of rasvumite. Usually they never exceed 1 cm size. Orange rust-like product is alkali-free iron sulphide close to pyrrhotite. Associated minerals are: lustrous orange plates ingrown into rasvumite - lamprophyllite, green prismatic - later almost pure aegirine, black prismatic - former aegirin-diopside. FOV is ~ ... |
| © Pavel M. Kartashov | Photo ID: 120561 View Count: 131 |
Rasvumite : KFe2S3, Erdite : NaFeS2·2H2O | |
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Coyote Peak, Orick, Orick District, Humboldt Co., California, USA Dull-blackish tarnished rasvumite, with orange surficial alteration, and likely intermixed with coppery-red erdite, magnetite and pyrrhotite. 0.5 cm field of view. S415-060 #2187# |
| © 2008, JGW | Photo ID: 169374 View Count: 100 |
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