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finnchaga: Otamo galena 50x polished section
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finnchaga: polished 400x outokumpu sample offset XPL
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finnchaga: polished 400x outokumpu sample PPL
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finnchaga: Outokumpu ore diamond and chrome-polish finished
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finnchaga: etched and semi-repolished 25CrMo4 steel
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finnchaga: unetched polished 25CrMo4 steel
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finnchaga: Grey, zoned grain in Cu-ore sample
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finnchaga: Aluminum polished with etch trial 100x
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finnchaga: Aluminum polished 100x
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finnchaga: Routakallio Antimony polished 100x
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finnchaga: Routakallio Antimony polished 50x
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finnchaga: etch trial polished 25CrMo4 steel
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finnchaga: Antimony parallel to a major cleavage 50x
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finnchaga: Steroskoopilla otettu 63x
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finnchaga: Mircohardness tests 375x
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finnchaga: Rainbow inclusions in V-niemi phospate
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finnchaga: Dented Metal...viewed by Heavy Metal Scope
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finnchaga: Likely covellite
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finnchaga: kaunis kide kuitukalsiitissa
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finnchaga: neulaset tulevat pintaan hengittämään
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finnchaga: Smoky and the Guests
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finnchaga: Piipitoinen sillisalaatti
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finnchaga: "Broken but not crushed"
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finnchaga: unidentified inclusions in quartz
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finnchaga: Diamond Pits in Fields of Color
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finnchaga: Arsenopyrite twinning in Juurakko polished sample
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finnchaga: Chilean quartz with tourmaline
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finnchaga: Malachite and covellite from Kotka murskelouhos
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finnchaga: Deformed andalusite growth
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finnchaga: "Triple delight" or multiple-chained-tourmaline