Siderite (unusual crystal form)

Panasqueira, Castelo Branco Dist., Portugal
Miniature, 3.6 x 2.9 x 2.6 cm
Start Time: 05/22/2014 6:30:00 pm (CDT)
End Time: 05/29/2014 6:32:26 pm (CDT)
Auction Closed

Item Description

Glassy, translucent, grayish-colorless, hexagonal, fluorapatite crystals are aesthetically clustered on an unusual, sharp, lustrous, two-toned, siderite rhomb from this famous locale. Five faces on the siderite rhomb are lustrous and opaque; five faces have a secondary overgrowth of lustrous, translucent, olive-brown siderite and three of these faces are heavily etched. A Strange and nifty crystal habit makes you look twice at this one! Scattered brassy chalcopyrites are a super accent. Complete all-around and pristine. One back face is partially contacted with no damage, per se. Modest yellow fluorescence. A very fine single crystal siderite combination miniature from this classic locale. Valued $750 for the very rare habit

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