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A unique, sought-after 'small-cabinet' mineral specimen of rare Clinoptilolite-Na on a Rhyolitic Tuff 'thunderegg' matrix with accompanying provenance from Richardson's Ranch, Madras, Jefferson Co., Oregon, USA.
The specimen features numerous small, lustrous crystals of perfectly-terminated 'burnt orange - Copper-coloured' crystals of Clinoptilolite-Na with associated acicular fibrous white Mordenite crystals.
The specimen comes with 3 labels: A 'Midland Minerals' label, 'Peter G. Seroka' collection label and label from the collection of 'Allan and Elvire Mortimer' label.
