Calcite (rare Arizona)

Portland Mine, Mohave Co., Arizona, USA
Cabinet, 12.7 x 10.7 x 3.7 cm
Start Time: 01/09/2025 7:00:00 pm (CST)
End Time: 01/16/2025 6:30:00 pm (CST)
Time Left:
Current Bid: $60
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Minimum Bids & Increment Bids

Minimum Bids and Increment Bids

The minimum bid for the first bidder is the starting bid of $10 (unless indicated otherwise in special higher-reserve auctions), and from there you can bid incrementally by one or more "bid increments" as you desire. The bid increments are:

$5 for bids of $10 to $50
$10 for bids of $51 to $500
$25 for bids of $501 to $1000
$50 for bids of $1001 to $5000
$100 for bids of $5001 to $10,000
$250 for bids of $10,001 to $25,000
$500 for bids of over $25,000

Item Description

Sublime, water-clear gem, colorless, nailhead spar calcite crystals are dramatically festooned, jackstraw-style, on the sculptural large triangular matrix plate. The highly lustrous prism reach about 1.8 cm tall. This very rich and beautiful specimen resembles classic English calcite, but in fact is from Arizona. The Portland Mine is an extinct less well-known intermittently worked open pit gold mine, last worked in 1989 (MINDAT). Old material for collectors, seldom seen! The porphyritic matrix is a telltale feature. It appears to be essentially pristine, but for the acceptable minimal periphery wear. The piece has two fine display views. SELDOM on the market in this quality, richness and SIZE, from this locality.

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Bidding History

Bid Amount Bid Time
$60 01/10/2025 4:30:53 pm (CST)
$50 01/10/2025 4:30:53 pm (CST)
$40 01/10/2025 12:38:10 pm (CST)
$35 01/10/2025 7:35:16 am (CST)
$30 01/10/2025 7:35:04 am (CST)
$25 01/10/2025 7:35:04 am (CST)
$10 01/09/2025 10:06:33 pm (CST)