Copper (large "Spinel"-twin) Prehnite it provided collectors with some

it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado

and aesthetic to be sure

Phetteplace collection

single finger-shaped cast of Prehnite after Anhydrite with bright green color

Copper (large "Spinel"-twin) Prehnite it provided collectors with someA truly impressive and superb quality, large "Spinel" twinned crystals of Native Copper from the recent mining at this large Copper pit locality in Australia. The specimen almost reminds me of an arrow due to its shape, but it also has somewhat of an organic quality to it as well. The piece displays a fantastic blending of the large central twin which is flanged on several sides by small Copper crystallization, along with the gorgeous skeletal or