Skip to main content
Go to accessibility notice
For Art and Antique Auctions, standard shipments are being delayed 2-4 weeks due to increased safety procedures and vendor and carrier slowdowns. As soon as your order ships, you will receive a tracking number.

    Description

    Stromatolite Slab
    Biwabik Iron Formation
    Mary Ellen Mine, Mesabi Range, St. Louis Co.
    Minnesota, USA

    This unique slab was created by stromatolites or algal flora billions of years ago. The particular species which created this bold slab are known as Collenia undosa and are today without extant populations. Once these microorganisms were buried in a shallow sea they oxidized the local Iron creating this beautiful red jasper. This 34 inch slab (86.36 cm) displays deep reds, blacks, yellow and silver which are mostly created by varieties of Hematite and white Quartz. The result is gorgeous and commonly referred to as Mary Ellen Jasper, as it yields from the Mary Ellen Mine in Minnesota, USA. The breathtaking slab has been cut and polished to display this unique pattern highly sought after by collectors. The organic shape accentuates the natural color pockets in this fine specimen.
    Overall Measurements: 34.00 x 33.00 x 1.00 inches (86.36 x 83.82 x 2.54 cm)

    Provenance: The Property from an East Coast Collection


    Condition Report*: Condition report available upon request.
    *Heritage Auctions strives to provide as much information as possible but encourages in-person inspection by bidders. Statements regarding the condition of objects are only for general guidance and should not be relied upon as complete statements of fact, and do not constitute a representation, warranty or assumption of liability by Heritage. Some condition issues may not be noted in the condition report but are apparent in the provided photos which are considered part of the condition report. Please note that we do not de-frame lots estimated at $1,000 or less and may not be able to provide additional details for lots valued under $500. Heritage does not guarantee the condition of frames and shall not be liable for any damage/scratches to frames, glass/acrylic coverings, original boxes, display accessories, or art that has slipped in frames. All lots are sold "AS IS" under the Terms & Conditions of Auction.

    Auction Info

    Auction Dates
    September, 2019
    28th Saturday
    Bids + Registered Phone Bidders: 0
    Lot Tracking Activity: N/A
    Page Views: 726

    Buyer's Premium per Lot:
    25% on the first $300,000 (minimum $49), plus 20% of any amount between $300,000 and $3,000,000, plus 12.5% of any amount over $3,000,000 per lot.

    Shipping, Taxes, Terms and Bidding
    Charges to be determined based on Actual Shipping Costs incurred. Note: Additional invoice may follow original. Please contact us for more information. Sales Tax information

    Important information concerning Sales Tax and Resale Certificates. Learn More

    Terms and Conditions  |  Bidding Guidelines and Bid Increments |  Glossary of Terms

    Sold for: Sign-in or Join (free & quick)
    Track Item

    Heritage membership

    Join Now - It's Free

    VIEW BENEFITS
    1. Past Auction Values (prices, photos, full descriptions, etc.)
    2. Bid online
    3. Free Collector newsletter
    4. Want List with instant e-mail notifications
    5. Reduced auction commissions when you resell your
      winnings 
    Consign now
    • Cash Advances
    • More Bidders
    • Trusted Experts
    • Over 200,000 Satisfied Consignors Since 1976
    Only 44 days left to consign to the 2021 May 7 American Art Signature Auction - Dallas!

    Learn about consigning with us

    You helped me navigate unchartered territory and I do appreciate all of the work you put in to it. You are appreciated!
    Jamie W.,
    Tulsa, OK
    View More Testimonials

    HA.com receives more traffic than any other auction house website. (Source: Similarweb.com)

    Video tutorial

    Getting the most out of search