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Improving Mindat.orgSukula pegmatite area

5th Feb 2014 13:47 UTCIlkka Mikkola Expert

See: Vorma, Atso & Siivola, Jaakko 1967. Sukulaite- Ta2Sn2O7- and wodginite as inclusions in cassiterite in Sukula, Tammela SW-Finland. Bull. Comm. Géol. Finlande n:o 229.

Numerous small pegmatites are met with in the Sukula-village.

The TL of Tapiolite-(Fe) is unknown pegmatite near Kulmala farm. The tapiolite is with lepidolite in sample from the year

1863 by Nordenskiöld.

Probably the unknown pegmatite near the Mäkitulokas farm is the TL of ferrowodginite and the newly approved oxystannomicrolite (IMA 2014-1 list). They were found from "ainalite" samples mentined by Nordenskiöld year 1863. Ainalite at Sukula pegmatite is tantalian cassiterite with tapiolite, ferrowodginite and bismuth inclusions. One ainalite sample has narrow oxystannomicrolite rims around ferrowodginite inclusions.

Triplite, triphylite, albite, muscovite, biotite, beryl tourmaline, löllingite and some other minerals occur at Sukula pegmatite area..

Should the five Sukula area pegmatites be merged, Sukula, Tammela (said to be near Kulmala), Sukula, Mäkitulokas, Kulmala tapiolite prospect, Kulmala quartz prospect and Kulmala (all are unknown small pegmatites

from history).


8th Feb 2014 13:26 UTCKnut Edvard Larsen Manager

Thanks Ilkka

Sukula area cleaned up (by clearing the cache and some editing). Descriptions added to the different sublocalities mention in the reference litterature.

Please check

The title of Vorma & Siivola, " in the granite pegmatite in Sukula" seems to be misleading since there are in fact, as you wrote, numerous small pegmatites in the Sukula area (and there were several prospects).

8th Feb 2014 18:35 UTCIlkka Mikkola Expert

Thank you Knut Edvard

Can you change the stannomicrolite (of Hogarth) to oxystannomicrolite. The Sukula stannomicrolite has been changed to oxystannomicrolite and Sukula is the TL of oxystannomicrolite (see IMA Master list 2014-01).


8th Feb 2014 19:45 UTCKnut Edvard Larsen Manager

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