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4 15/16" Etley, Choteau Chert, Pettis Co., Missouri, Keele COA: 4 15/16" Etley, Choteau Chert, Pettis Co., Missouri, Keele COA

Jul 12, 2026

4 15/16" Etley, Choteau Chert, Pettis Co., Missouri, Keele COA

Heartland Artifact Auctions

US$10

3 3/8" Sedalia/Nebo Hill, Burlington Chert, Field Find: 3 3/8" Sedalia/Nebo Hill, Burlington Chert, Field Find

Jul 12, 2026

3 3/8" Sedalia/Nebo Hill, Burlington Chert, Field Find

Heartland Artifact Auctions

US$10

(1 bid)

4 3/8" Chesterfield, Burlington Chert, Scott County, Illinois, Found by Trace Kauffman: 4 3/8" Chesterfield, Burlington Chert, Scott County, Illinois, Found by Trace Kauffman

Jul 12, 2026

4 3/8" Chesterfield, Burlington Chert, Scott County, Illinois, Found by Trace Kauffman

Heartland Artifact Auctions

US$10

3 15/16" Warrick, Pike Co., Illinois, Motley COA: 3 15/16" Warrick, Pike Co., Illinois, Motley COA

Jul 12, 2026

3 15/16" Warrick, Pike Co., Illinois, Motley COA

Heartland Artifact Auctions

US$10

4 5/8" Pulaski, Union Co., Illinois, Motley COA: 4 5/8" Pulaski, Union Co., Illinois, Motley COA

Jul 12, 2026

4 5/8" Pulaski, Union Co., Illinois, Motley COA

Heartland Artifact Auctions

US$10

2 3/4" Dalton, Burlington Chert, Found in Illinois, Davis COA: 2 3/4" Dalton, Burlington Chert, Found in Illinois, Davis COA

Jul 12, 2026

2 3/4" Dalton, Burlington Chert, Found in Illinois, Davis COA

Heartland Artifact Auctions

US$10

7 1/2" Burlington Chert Platter, Found in Fulton County, Illinois by Dean Dowling: 7 1/2" Burlington Chert Platter, Found in Fulton County, Illinois by Dean Dowling

Jul 12, 2026

7 1/2" Burlington Chert Platter, Found in Fulton County, Illinois by Dean Dowling

Heartland Artifact Auctions

US$10

Snap-On 15/16" & 1" Combo Wrenches: Snap-On 15/16" & 1" Combo Wrenches - Snap-On SOEX30 15/16"(x2) Combo Wrenches, Snap-On SOEX32 1" Combo Wrench. LOT SIZE: 13x3x3" 3 LBS All information and photos are intended to be as accurate as poss

Snap-On 15/16" & 1" Combo Wrenches

A New Day Auctions LLC

US$10

Vintage Pulaski Oceanic Walnut Mirror Mid Century Modern 1970s: Vintage Pulaski Oceanic Walnut Mirror Mid Century Modern 1970s This stunning Mid Century Modern Pulaski Oceanic Mirror showcases a beautiful, warm walnut wood grain complemented by a sculpted Oceanic

2 days Left

Vintage Pulaski Oceanic Walnut Mirror Mid Century Modern 1970s

US$920

1774 VIRGINA GAZETTE NEWSPAPER WITH PULASKI CO., VALLEY OF VIRGINIA INTEREST: 1774 VIRGINA GAZETTE NEWSPAPER WITH PULASKI CO., VALLEY OF VIRGINIA INTEREST, Williamsburg: Clementina Rind (Virginia's first female printer/publisher), January 27, 1774, No. 403. Includes a print

17 hrs Left

1774 VIRGINA GAZETTE NEWSPAPER WITH PULASKI CO., VALLEY OF VIRGINIA INTEREST

Jeffrey S. Evans & Associates

US$50

Pulaski Furniture Chest of Drawers w/ Mirrored & Faux Crocodile Print Drawer Fronts: 56"H _ 42"W _ 19"D Features Faux Crocodile Skin Pattern & Silver Hardware

Jul 09, 2026

Pulaski Furniture Chest of Drawers w/ Mirrored & Faux Crocodile Print Drawer Fronts

Kraft Auction Service

US$10

Two Vintage Relin of San Francisco Silk Blouses (Sz 15/16): Two Relin of San Francisco labeled silk button-up blouses (both Size 15/16), one red, one yellow. Excellent vintage condition.

Jul 19, 2026

Two Vintage Relin of San Francisco Silk Blouses (Sz 15/16)

Turner Auctions + Appraisals

US$50

1113 past auction results for "heat-treated-chert"

Browse a record of outcomes from past auctions, including sale prices and unsold items.

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4 7/8" x 1 15/16" Pulaski, Heat Treated Burlington Chert, Schuyler Co., Illinois, Motley & Leithoff : 4 7/8" x 1 15/16" Pulaski, Heat Treated Burlington Chert, Schuyler Co., Illinois, Motley & Leithoff COA, Ex Dr. Dunnsif who lived in Jacksonville IL

2026

4 7/8" x 1 15/16" Pulaski, Heat Treated Burlington Chert, Schuyler Co., Illinois, Motley & Leithoff

Heartland Artifact AuctionsQuincy, IL

Fine Carter Blade - heat treated Burlington: Very Fine Carter Blade, heat treated burlington.Elongated bifacial stone blade with a tapered point and a broad, squared base. Light pink to tan material displays dense, fine flaking with overlapping

2026

Fine Carter Blade - heat treated Burlington

Caliburn Auction House Republic, MO

Plated Rhodium 0.80ct Ruby and Lab Diamond Pendant with Chain: Ruby Pear/7x5mm 1/0.80 ctw Prong Setting Natural Heat Treated F + Lab Grown Diamond Round/1.30mm 16/0.16 ctw

2026

Plated Rhodium 0.80ct Ruby and Lab Diamond Pendant with Chain

1 Great Deal Auctions Meridian, ID

Plated Rhodium 1.80ctw Citrine and Lab Diamond Earrings: Citrine Pear/8x6mm 2/1.80 ctw Prong Setting Natural Heat Treated N + Lab Grown Diamond Round/1.20mm 8/0.06 ctw

2026

Plated Rhodium 1.80ctw Citrine and Lab Diamond Earrings

1 Great Deal Auctions Meridian, ID

4 1/8" Lost Lake. Illinois. Burlington. Ex Frank Alexander.: 4 1/8" Lost Lake. Illinois. Heat Treated Burlington. Ex Frank Alexander Collection.

2026

4 1/8" Lost Lake. Illinois. Burlington. Ex Frank Alexander.

Tony Putty ArtifactsGwynneville, IN

3 11/16" Lost Lake. Missouri. Burlington. Ex Frank Alexander.: 3 11/16" Lost Lake. Missouri. Heat Treated Burlington. Ex Frank Alexander Collection.

2026

3 11/16" Lost Lake. Missouri. Burlington. Ex Frank Alexander.

Tony Putty ArtifactsGwynneville, IN

Ka-bar 5011 Foliage Green Fighting/utility Knife: This Ka-bar 5011 Foliage Green Fighting/utility Knife Combines Proven Form And Function For Demanding Tasks. The Clip Point Fixed Blade Measures 7-inch And Uses 1095 Cro-van Steel Heat Treated To An H

2026

Ka-bar 5011 Foliage Green Fighting/utility Knife

Armanis IncReseda, CA

2 15/16" Hopewell Drill Keele COA. Heat treated to dark red. Found in Saline Co. Missouri Ex: Gene: 2 15/16" Hopewell Drill Keele COA. Heat treated to dark red. Found in Saline Co. Missouri Ex: Gene Harms, Ray Arnett Collections.

2026

2 15/16" Hopewell Drill Keele COA. Heat treated to dark red. Found in Saline Co. Missouri Ex: Gene

North American Artifact AuctionsHannibal, MO

Multi-Color 1 1/16" Scallorn Arrowhead found in Pettis Co., Missouri: Multi-Color 1 1/16" Scallorn Arrowhead found in Pettis Co., Missouri. Its either heat treated mozarkite or more likely heat treated marshal chert with alot of colors.

2026

Multi-Color 1 1/16" Scallorn Arrowhead found in Pettis Co., Missouri

North American Artifact AuctionsHannibal, MO

5" Finely Made Dalton Made by Jeff Gower: This point is knapped from lightly heat treated Burlington chert a material prized for its workability and known for natural mineral inclusions. In this piece those inclusions present in a way that cl

2026

5" Finely Made Dalton Made by Jeff Gower

North American Artifact AuctionsHannibal, MO

Outstanding Pelican Lake / Stealth Point – 1 7/8", Adair County: This 1 7/8 inch Pelican Lake Stealth Style Corner Notched Point dates to the Late Archaic to Early Woodland period and is expertly crafted from heat treated Burlington chert typical of northeast Misso

2026

Outstanding Pelican Lake / Stealth Point – 1 7/8", Adair County

North American Artifact AuctionsHannibal, MO

8.22ct Mozambique Ruby Cushion Cut, No Reserve, GIE Certified: a vibrant red gemstone, high clarity and transparency. The cushion cut features rounded corners and deep facets to maximize brilliance. frequently treated with heat to enhance color. This natural ruby

2026

8.22ct Mozambique Ruby Cushion Cut, No Reserve, GIE Certified

California GemstonesOceanside, CA

Plated Rhodium 4.80ctw Citrine Earrings: 4.80 Carat Genuine Citrine.925 Sterling Silver Earrings. Citrine Oval/4x3mm - 30/4.80 ctw Prong Setting Natural Heat Treated N. Total weight 5.96 grams.

2026

Plated Rhodium 4.80ctw Citrine Earrings

1 Great Deal Auctions Meridian, ID

Plated 14KT Yellow Gold 1.30ct Citrine and White Topaz Ring: 14K Yellow Gold Plated 1.36 Carat Genuine Citrine & White Topaz.925 Sterling Silver Ring. Citrine Cushion/8x6mm - 1/1.30 ctw Natural Heat Treated N + White Topaz Round/1.20mm - 6/0.06 ctw Natural Heat

2026

Plated 14KT Yellow Gold 1.30ct Citrine and White Topaz Ring

1 Great Deal Auctions Meridian, ID

Plated Rhodium 2.65ctw Ruby and White Sapphire Pendant with Chain: 2.65 Carat Genuine Ruby & White Sapphire.925 Sterling Silver Pendant. Ruby Round/1.90-2.00mm - 50/2.25 ctw Natural Heat Treated F + White Sapphire Round/1.90mm - 10/0.50 ctw Natural Heat Treated E. To

2026

Plated Rhodium 2.65ctw Ruby and White Sapphire Pendant with Chain

1 Great Deal Auctions Meridian, ID

Plated 14KT Yellow Gold 1.30ct Citrine and White Topaz Ring: 14K Yellow Gold Plated 1.36 Carat Genuine Citrine & White Topaz.925 Sterling Silver Ring. Citrine Cushion/8x6mm - 1/1.30 ctw Natural Heat Treated N + White Topaz Round/1.20mm - 6/0.06 ctw Natural Heat

2026

Plated 14KT Yellow Gold 1.30ct Citrine and White Topaz Ring

1 Great Deal Auctions Meridian, ID

Unmounted Sapphire: Oval cut, 1.85 ct, appears heat treated. From a selection of fine gemstones of a retiring GIA Graduate Gemologist, custom jewelry designer, appraiser, artist, and avid collector.

2026

Unmounted Sapphire

Cordier AuctionsHarrisburg, PA

2 1/8" Colorful Red Sun Disc made out of Heat treated Burlington Chert.: 2 1/8" Colorful Red Sun Disc made out of Heat treated Burlington Chert.

2026

2 1/8" Colorful Red Sun Disc made out of Heat treated Burlington Chert.

North American Artifact AuctionsHannibal, MO

6 3/4" Colorful Heat Treated Burlington Chert Woodland Knife Found in Boone Co. Missouri Ex: Mike: 6 3/4" Colorful Heat Treated Burlington Chert Woodland Knife Found in Boone Co. Missouri Ex: Mike Bradshaw Collection Ryan Keele COA.

2026

6 3/4" Colorful Heat Treated Burlington Chert Woodland Knife Found in Boone Co. Missouri Ex: Mike

North American Artifact AuctionsHannibal, MO

3 3/4" Blood Red Rice Shallow Notched Arrowhead Found in Callaway Co. Missouri Ex: Larry Underwood: 3 3/4" Blood Red Rice Shallow Notched Arrowhead Found in Callaway Co. Missouri Ex: Larry Underwood Collection Ryan Keele COA. Made out of heat treated Burlington chert.

2026

3 3/4" Blood Red Rice Shallow Notched Arrowhead Found in Callaway Co. Missouri Ex: Larry Underwood

North American Artifact AuctionsHannibal, MO

Plated 18KT Yellow Gold 5.00ctw Citrine and Topaz Earrings: 18K Yellow Gold Plated 5.70 Carat Genuine Citrine and White Topaz.925 Sterling Silver Earrings. Citrine Oval/9x7mm - 2/3.40 ctw Prong Setting Natural Heat Treated N + Citrine Oval/7x5mm - 2/1.60 ctw N

2026

Plated 18KT Yellow Gold 5.00ctw Citrine and Topaz Earrings

1 Great Deal Auctions Meridian, ID

Stunning Octagon cut 10.15ct. Natural Blue Green Tourmaline Loose Gemstone from Brazil: This beautiful Tourmaline is heat treated and certified with a AGL card. This one would make a fantastic ring, or pendant. Tourmalines come in many different colors, and they make really fine jewelry.

2026

Stunning Octagon cut 10.15ct. Natural Blue Green Tourmaline Loose Gemstone from Brazil

LEAP AuctionsSpringtown, TX

14KT White Gold 1.02ctw Ruby and White Diamond Ring: Ruby Oval/6x4mm - 1/0.52 ctw Prong Setting Natural Heat Treated F + Ruby Oval/4x3mm - 2/0.44 ctw Natural Heat Treated F + White Diamond Round/0.80mm - 22/0.06 ctw Natural Not Treated N H-I I1. Ring si

2026

14KT White Gold 1.02ctw Ruby and White Diamond Ring

1 Great Deal Auctions Meridian, ID

Plated Rhodium 2.69ctw Tanzanite Ring: 2.69 Carat Genuine Tanzanite.925 Sterling Silver Ring. Tanzanite Oval/4x3mm - 10/1.70 ctw Natural Heat Treated E + Tanzanite Round/2.50mm - 8/0.56 ctw Natural Heat Treated E + Tanzanite Round/3.00mm -

2026

Plated Rhodium 2.69ctw Tanzanite Ring

1 Great Deal Auctions Meridian, ID

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