wonders of kremikovtzi mineral diversity of kremikovtzi iron mine
Transcription
wonders of kremikovtzi mineral diversity of kremikovtzi iron mine
WONDERS OF KREMIKOVTZI MINERAL DIVERSITY OF KREMIKOVTZI IRON MINE, PRESERVED IN PRIVET COLLECTIONS ZLATI ZLATEV*, ELENA NEYKOVA, ANKA RUSINOVA *Bulgarian Lapidary Club, Sofia University Kremikovtzi iron mine is one of the famous mineral deposits in Bulgaria with more than 85 different minerals, found there. From late sixties till 2009 open pit was mined and thousands mineral specimens were collected and preserved in museums and privet collections (Fig.1) Fig.1. Kremikovtzi, 2009 During the last 30 years some of the best specimens founds were made by privet collectors. In collections of Dimitar Ivanov, Dimitar Stoyanov, Zlati Zlatev and Angel Angelov (1918-2003, now his collection is in Sofia University museum) are presented all main mineral species and many rarities and new founds like Mn-norsethite. Because of the specifics of privet collecting main focus is on the beauty, crystal shapes, color and size of minerals. This reason is main pillar, which concentrate in privet collections really some of the best samples, found in the mine. (Fig.2) 1 Fig.2. Collectors: Angel Angelov, Zlati Zlatev, Dimitar Ivanov, Dimitar Stoyanov Barite, as top mineral in Kremikovtzi, is presented in many different faces. The 4 morphological types of secondary barite show different colors and sizes (Zlatev, 1997, thesis). Unique founds of 1989 and 1992 are good examples of passion and hard work, done in heavy condition of open mine. We are proud to say, that some of best specimens, fond there, now are not only in privet hands, but also in all Bulgarian mineralogical museums. (Fig.3,4,5) Fig. 3. Barite, collectors: Zlati Zlatev and Dimitar Ivanov 2 Fig.4. Barite (microphotos), collectors: Zlati Zlatev and Dimitar Ivanov Fig.5. Barite, collector Dimitar Stojanov 3 Carbonates are the second biggest group, which focused collector’s interest. Calcite (Фиг.6, 7), rhodochrosite (Фиг.8), witherite (Фиг.9), azurite (Фиг.10), malachite (Фиг.11) and Mn-norsethite (Фиг.12, 13) show unique morphology. Botryoidal carbonates are some kind of trade mark for deposits and still wait for detailed scientific study. Fig.6. Calcite, collectors: Zlati Zlatev and Dimitar Ivanov Fig. 7. Calcite (in situ) 4 Fig. 8. Rhodochrosite (microphotos), collectors: Zlati Zlatev, Angel Angelov Fig. 9. Witherite (microphotos), collectors: Zlati Zlatev and Dimitar Ivanov 5 Fig.10. Azurite (microphotos), collector Dimitar Ivanov Fig.11. Malachite (microphotos), collector Dimitar Ivanov 6 Fig. 12. Mn-norsethite, collector Zlati Zlatev Fig. 13. Mn-norsethite, collector Dimitar Ivanov 7 Fe- and Mn-oxides and hydroxides (Фиг.14, 15, 16) are other of famous species in Kremikovtzi. „Glass kopf” type of aggregates are one of the best in the world, Glossy and shining faces are remarkable and any collector is proud to have this type of specimens in his collections. Fig. 14. Fe oxides and hydroxides, collectors: Zlati Zlatev, Dimitar Ivanov Fig. 15. Fe oxides and hydroxides, collectors: Zlati Zlatev, Dimitar Ivanov 8 Fig. 16. Mn oxides and hydroxides, collectors: Zlati Zlatev, Dimitar Ivanov Other rarities, as superb aggregates of Native Cu and shining marcasites (Фиг.17) are also preserved in privet hands. Fig. 17. Native Cu and shining marcasites, collectors: Angel Angelov and Zlati Zlatev Now Kremikovtzi mine is closed and floated and there is no anymore possibility to collect minerals there. Because that any collected specimen now is extremely important and role of privet collectors and their treasures is guarantee, that in the future mineral diversity of this deposit will be kept and preserved. 9