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Historia i najstarsze okazy minerałów w kolekcji Muzeum Mineralogicznego Uniwersytetu Wrocławskiego

Korybska-Sadło I.

Przegląd Geologiczny

2017

Vol. 65, nr 3

150--153

Mineralogical Museum in Wrocław was founded in 1811 by Karl von Raumer who became the first principal of the institution. Before 1945, a collection of several specimens increased to 13,470. Unfortunately, part of the collections along with inventory books were destroyed during World War II and many specimens were lost forever. The object of my research is both the history of the MM and oldest part of the collection, gathered between 1811 and 1855.Currently, there are about 400 minerals collected during that period. Most of them came from European countries and were donated by museum directors and famous collectors. They deserve attention because all the specimens were collected before the creation of the IMA (International Mineralogical Association) and they include very rare minerals.

Studies of chrysoprase and microcrystalline silica varieties from serpentinites of Szklary Massif (Foresudetic Block, SW Poland) by Raman spectroscopic technique – preliminary results

Korybska-Sadło I.

Mining Science

2015

Vol. 22, Special Issue 2

39--45

The mineralogical properties of green colored chalcedony varieties from weathering cover of slightly serpentinized peridotites (harzburgites) occurring near Szklary village on Foresudetic Block (SW Poland) are studied using Raman spectroscopy in the 200 – 1600-1 wavenumber region . The obtained results show, that in examined samples, the peaks like: 206, 265, 355, 394, 464, 696, 796, 808 cm-1, characteristic for α-quartz were ascertained. In one sample, the characteristic moganite peak (502 cm-1) was found. It implies that presence of other polymorphs of SiO2 in crystalline structure, considered a proof for presence of moganite intergrowths with α-quartz. It indicate, that intensity of green color of measured samples of chrysoprase are not correlated with Raman spectroscopic data. It can be conclude, that examination of Raman spectra can be useful only to recognition of internal phase composition of green cryptocrystalline silica polymorphs occurring in weathering cover of serpentinized peridotites.