Minerals in the Cu-Sn-Se system, an experimental study

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Minerals in the Cu-Sn-Se system, an experimental study

Popis výsledku v původním jazyce

Copper, tin, and selenium are frequently considered to be critical metals as a result of increasing demand and insecure supply. We studied synthetic analogues of minerals belonging to the Cu-Sn-Se system. We further assessed the phase relations in the system at 300 oC. For the purpose of this study the silica-glass tube method was used. The experimental products were evaluated by means of XRD and EMPA. The following binary phases: SnSe, SnSe2, Cu3Sn, Cu6Sn5, Cu2-xSe, CuSe, and CuSe2; and the ternary phase Cu2SnSe3, an analogue of okruginite, were proved to be stable at 300 oC. Okruginite forms stable associations with Cu-selenides and Sn-selenides at 300 oC. The phase SnSe, an analogue of svetlanaite, forms a stable association with copper-tin alloys and Cu2 xSe. The SnSe2 phase, so far not known to occur in nature, forms stable association with svetlanaite and okruginite. The SnSe2 phase should be sought in such assemblages in low-temperature environments with high oxygen fugacity and high Se/S fugacity ratio. Such association can be expected in selenide vein-type deposits, vein-type uranium deposits, unconformity-related uranium deposits, or Au-Ag epithermal volcanic-hosted deposits.

Název v anglickém jazyce

Minerals in the Cu-Sn-Se system, an experimental study

Popis výsledku anglicky

Copper, tin, and selenium are frequently considered to be critical metals as a result of increasing demand and insecure supply. We studied synthetic analogues of minerals belonging to the Cu-Sn-Se system. We further assessed the phase relations in the system at 300 oC. For the purpose of this study the silica-glass tube method was used. The experimental products were evaluated by means of XRD and EMPA. The following binary phases: SnSe, SnSe2, Cu3Sn, Cu6Sn5, Cu2-xSe, CuSe, and CuSe2; and the ternary phase Cu2SnSe3, an analogue of okruginite, were proved to be stable at 300 oC. Okruginite forms stable associations with Cu-selenides and Sn-selenides at 300 oC. The phase SnSe, an analogue of svetlanaite, forms a stable association with copper-tin alloys and Cu2 xSe. The SnSe2 phase, so far not known to occur in nature, forms stable association with svetlanaite and okruginite. The SnSe2 phase should be sought in such assemblages in low-temperature environments with high oxygen fugacity and high Se/S fugacity ratio. Such association can be expected in selenide vein-type deposits, vein-type uranium deposits, unconformity-related uranium deposits, or Au-Ag epithermal volcanic-hosted deposits.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10504 - Mineralogy

Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Mineral Resources for Our Ever-Changing World

ISBN

979-8-90030-538-7

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

924-927

Název nakladatele

The Society for Geology Applied to Mineral Deposits (SGA)

Místo vydání

Colorado

Místo konání akce

Colorado, USA

Datum konání akce

3. 8. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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