![Polished Fossil Tree Slice: Triassic Period, 251-199 million years B.P. Agatized slice showing attractive patterns, polished on both sides. 437 grams, 15.7 cm (6 1/8 in.). [No Reserve] From a Cambridgeshire, UK, collection. Time](https://p1.liveauctioneers.com/1191/426518/237925183_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
Est.
US$2,000
-US$3,000
NewelLong Island City, NY
Est.
US$2,000
-US$5,000
FD AuctionBeijing, CN
Est.
US$50
-US$100
Antique Arena Inc.Brooklyn, NY
Est.
€150
-€300
KUNSTAUKTIONSHAUS SCHLOSS AHLDENAhlden(Aller), Niedersachsen
Est.
£600
-£800
TimeLine Auctions Ltd.Harwich, Essex
![Group of Twelve [12] Minerals and Crystals: Mixed group of specimens including malachite, 'desert rose', quartz, rose quartz, amethyst, pyrite, agate, and others. 2.96 kg total, 3.4-20.2 cm (1 3/8 - 7 7/8 in.). [12, No Reserve] Ex Mineral Impor](https://p1.liveauctioneers.com/1191/426518/237925225_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
![Very Large Cut Natural Unpolished Fossilised Tree Trunk Slice: Triassic Period, 251-199 million years B.P. Thick section of agatized wood showing some bark detailing on the outer edges. 1.81 kg, 30.8 cm (12 1/8 in.). [No Reserve] From Madagascar. Ex Mineral Impor](https://p1.liveauctioneers.com/1191/426518/237925365_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£40
-£60
TimeLine Auctions Ltd.Harwich, Essex
Est.
US$1,200
-US$1,500
Clarke Auction GalleryLarchmont, NY
Est.
US$80
-US$120
Jeffrey S. Evans & AssociatesMt. Crawford, VA
Est.
£250
-£350
TimeLine Auctions Ltd.Harwich, Essex
![Group of Four [4] Cut and Polished Fossilised Wood Slices: Triassic Period, 251-199 million years B.P. Comprising four thick slices, each showing agatized patterns and one with a small crystal-lined cavity. 253 grams total, 9-12.1 cm (3 1/2 - 4 3/4 in.). [4,](https://p1.liveauctioneers.com/1191/426518/237925245_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
Est.
US$20,700
-US$30,360
NY Elizabeth Beverly Hills, CA
Est.
US$19,425
-US$28,490
NY Elizabeth Beverly Hills, CA
Est.
US$10
-US$200
Lazo HeritageSathorn, Bangkok
Est.
US$28
-US$56
Treasure of Gems & JewelryLake Charles, LA
Est.
US$28
-US$56
Treasure of Gems & JewelryLake Charles, LA
Est.
US$28
-US$56
Treasure of Gems & JewelryLake Charles, LA
Est.
US$28
-US$56
Treasure of Gems & JewelryLake Charles, LA
Est.
£100
-£200
£80
£80
Chiswick AuctionsLondon
Est.
US$24
-US$48
Treasure of Gems & JewelryLake Charles, LA
Est.
US$80
-US$225
US$20
US$20
Hidden Treasure AuctionsOlympia, WA
Est.
US$20
-US$32
Treasure of Gems & JewelryLake Charles, LA
Est.
US$4,500
-US$6,000
Mannys JewelryHAGERSTOWN, MD
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