The pre-meeting field trip

 

Day 1 14/6/2015 (Sunday)

Meeting in Prague, likely at the Main Railway Station (easy to find, easy to get, easy to park) at 2 to 5 p.m., exact time will be specified later, then transport by bus to Kutná Hora (about 60 km),

 

1. Kutná Hora-Kaňk, short visit of a medieval dump (about 500 years old), type locality of several secondary As-minerals (bukovskýite, parascorodite, kaňkite, zýkaite), bukovskýite very common, others rather rare (voluntary)

(Kuttenberg – medieval mining city), visit of the city center, dinner in some restaurant.

- Accommodation in Kutná Hora

 

Day 2 15/6/2015

2. Přibyslavice, tourmaline-rich orthogneiss with pegmatoid facies and fine-grained highly evolved granite, LCT- pegmatite dike; type locality of oxy-schorl, primary Fe,Mn,Ca-phoshates (triphylite-fayalite, graftonite, sarcopside, apatite, harrisonite), secondary phosphates, nigerite, garnet, staurolite, graphite; about 2 km of walking

3. Vlastějovice, large Fe-skarn body cutting by numerous contaminated pegmatite dikes of at least of 2 generations (anatectic amphibole-rich with common allanite and LCT tourmaline-rich associated with their parental granite) about 2 km of walking

4. Oslavice, NYF intragranitic pegmatites in ultrapotassic, Mg-rich quartz syenite - durbachite

- Accommodation in Skalský dvůr (the site of the Tourmaline 1997, LERM 2003, field trip CZ2 IMA 2010, CEMC 2014)

 

Day 3 16/6/2015

5. Horní Bory, simple anatectic B-rich pegmatites in granulites with tourmaline and cordierite

6. Rožná, classical lepidolite pegmatite, type locality of lepidolite and rossmanite

visit of medieval Pernštejn Castle

- Accommodation in Skalský dvůr

 

Day 4 17/6/2015

7. Věžná I, beryl-columbite pegmatite in serpentinite, Be-rich cordierite, beryl, tourmalines, Nb-rutile, strong Mg-contamination, the locality of Petr Černý's PhD thesis

8. Věžná V, simple anatectic pegmatite with pockets (smoky quartz, albite, tourmaline)

 

Arrival to the Książ Castle, Poland about 5 p.m.

 After the PEG 2015 Symposium and the Post-conference Field Trip transport of participants from the Książ Castle to Prague may be organized. More details later.

 

The post-meeting field trip

 

Szklary Pegmatite

 

The Szklary pegmatite occurs within the Szklary serpentinite massif famous for the gem quality chrysoprase. List of minerals in the pegmatite comprises over 60 species, including: schorl, spessartine, chrysoberyl, beusite, columbite-(Fe), columbite-(Mn), tantalite-(Mn), stibiocolumbite, stibiotantalite, holtite, As- and Sb-bearing dumortierite, pyrochlore-supergroup minerals, pollucite,  purpurite. The Szklary pegmatite is the type locality for nioboholtite, titanoholtite and szklaryite.

The phosphates-rich Michałkowa pegmatiteoccurs within gneisses and amphibolites of the Sowie Mtns. block. More than 30 species have been described from the pegmatite, including allaudite, columbite-(Fe), cordierite, ferrisicklerite, graftonite, heterosite, hureaulite, schorl, vivianite. It is sarcopside type locality.

 

 

 

 sarkopsyd  schorl

Piława Górna Pegmatite

The mixed  NYF/LCT Julianna pegmatitic system from the Piława Górna quarry discovered in 2008 occurs as a network of dikes in amphibolites, eclogites and migmatites of the Góry Sowie Block. More than 100 species have been found so far, including schorl, almandine-spessartine series, spodumene, olenite, elbaite, liddicoatite, lepidolite, beryl, pezzotaite, pollucite, lithiophilite, columbite-tantalite group. Piława Górna is type-locality for pilawite-(Y).

    

Strzegom Pegmatites

 Famous miarolitic cavities (NYF) in the Variscan post-tectonic Strzegom granite. More than 90 species have been described from the cavities, including fine specimens of smoky quartz, amazonite, fluorite, epidote, stilbite, chabasite, topaz, bavenite, beryl, phenakite, milarite, masutomilite, columbite-tantalite group, stilpnomelane, and „local” variety of Fe-chlorite named „strigovite” after the latin name of the town.