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Steve Sorrell's Mineral Collection

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ncat WD113 Cassiterite, Hyalite, Erongo Mountains, Karibib, Erongo, Namibia

October 29, 2020 Steve Africa Namibia

Nice sharp group of cassiterite crystals with a partial coating of fluorescent green hyalite opal. The hyalite fluoresces under longwave UV (Convoy) but is much brighter under shortwave. The green fluorescence is due to uranyl ions.

Tags: CassiteriteHyalite Opal

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Cornwall England United Kingdom

ncat VHD10, Cassiterite, Goethite after Pyrite, Poldark Lode, Wheal Roots, Trevean, Wendron, Helston, Cornwall, England, UK

  • November 17, 2019
Australasia Australia Tasmania

2968 Cassiterite, Dolcoath Hill, Moina, Tasmania

  • October 3, 2019
Asia China

20060 Cassiterite, Ferberite, Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou, Hunan, China

  • July 15, 2020
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5019 Cassiterite, Gonamena Mine, St Cleer, Cornwall, England

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