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4 3/4" x 1 1/12" Dovetail, Dickey COA, Found in Ralls County, Missouri, Made of Undetermined Chert: 4 3/4" x 1 1/12" Dovetail, Dickey COA, Found in Ralls County, Missouri, Made of Undetermined Chert

May 23, 2026

4 3/4" x 1 1/12" Dovetail, Dickey COA, Found in Ralls County, Missouri, Made of Undetermined Chert

Heartland Artifact Auctions

(1 bid)

8 3/4" x 4 1/4" Nebo Axe, Found in Nodaway County, Missouri, Motley COA, Made of Tan Colored: 8 3/4" x 4 1/4" Nebo Axe, Found in Nodaway County, Missouri, Motley COA, Made of Tan Colored Granite, Found Three Miles West of Parnell by John Ewing

May 23, 2026

8 3/4" x 4 1/4" Nebo Axe, Found in Nodaway County, Missouri, Motley COA, Made of Tan Colored

Heartland Artifact Auctions

(1 bid)

4 3/16" x 2 7/8" North Blade (Snyder's Pre From), Dickey COA, Found in Missouri / Illinois Area, Ex.: 4 3/16" x 2 7/8" North Blade (Snyder's Pre From), Dickey COA, Found in Missouri / Illinois Area, Ex. Alisha Johnson (Collected by her Father in 2008)

May 23, 2026

4 3/16" x 2 7/8" North Blade (Snyder's Pre From), Dickey COA, Found in Missouri / Illinois Area, Ex.

Heartland Artifact Auctions

(1 bid)

6 5/8" x 1 3/4" Stanfield Knife, Motley / Leithoff COA, Found in Lincoln County, Missouri, Made of: 6 5/8" x 1 3/4" Stanfield Knife, Motley / Leithoff COA, Found in Lincoln County, Missouri, Made of Burlington Chert, Well Made With Only a Couple Resharpenings Producing a Light Beveling

May 23, 2026

6 5/8" x 1 3/4" Stanfield Knife, Motley / Leithoff COA, Found in Lincoln County, Missouri, Made of

Heartland Artifact Auctions

Lot of Pre Form / Bi Face Cache, Found Together by a Surface Collector in Butler County, Missouri,: Lot of Pre Form / Bi Face Cache, Found Together by a Surface Collector in Butler County, Missouri, Dickey COA, Largest Example 6 7/16" x 3", Seven Pre Forms Found Together Suggest to be a Clovis Bi Fa

May 23, 2026

Lot of Pre Form / Bi Face Cache, Found Together by a Surface Collector in Butler County, Missouri,

Heartland Artifact Auctions

(1 bid)

6 5/16" x 1 15/16" Hardin, DIckey COA, Found in St. Louis Co. Missouri, Ex Earl Townsend, Jim: 6 5/16" x 1 15/16" Hardin, DIckey COA, Found in St. Louis Co. Missouri, Ex Earl Townsend, Jim Crawford, Made of Burlington Chert

May 23, 2026

6 5/16" x 1 15/16" Hardin, DIckey COA, Found in St. Louis Co. Missouri, Ex Earl Townsend, Jim

Heartland Artifact Auctions

(4 bids)

5 3/8" x 1 7/16" Benton, Dickey COA, Found in New Madrid Co. Missouri, Made of Burlington Chert: 5 3/8" x 1 7/16" Benton, Dickey COA, Found in New Madrid Co. Missouri, Made of Burlington Chert

May 23, 2026

5 3/8" x 1 7/16" Benton, Dickey COA, Found in New Madrid Co. Missouri, Made of Burlington Chert

Heartland Artifact Auctions

5 5/16" x 1 3/16" Dalton, Keele COA, Found in Missouri, Ex Walt McIntire Made of Creek Stained Chert: 5 5/16" x 1 3/16" Dalton, Keele COA, Found in Missouri, Ex Walt McIntire Made of Creek Stained Chert

May 23, 2026

5 5/16" x 1 3/16" Dalton, Keele COA, Found in Missouri, Ex Walt McIntire Made of Creek Stained Chert

Heartland Artifact Auctions

(2 bids)

Large 9 1/2" Sedalia Culture Digger, Found in Central Missouri, Ex Croasdale Collection: Large 9 1/2" Sedalia Culture Digger, Found in Central Missouri, Ex Croasdale Collection

May 23, 2026

Large 9 1/2" Sedalia Culture Digger, Found in Central Missouri, Ex Croasdale Collection

Heartland Artifact Auctions

(1 bid)

4 3/8" x 2 3/16" Jersey Bluff Discoidal, Motley / Leithoff COA, Found in Monroe County, Missouri,: 4 3/8" x 2 3/16" Jersey Bluff Discoidal, Motley / Leithoff COA, Found in Monroe County, Missouri, Made of a Colorful Quartz with Porphyry

May 23, 2026

4 3/8" x 2 3/16" Jersey Bluff Discoidal, Motley / Leithoff COA, Found in Monroe County, Missouri,

Heartland Artifact Auctions

(3 bids)

6 1/4" x 1" Lerma Knife, Found in Central Missouri, Made of River Tumbled Flint, Ex. Croasdale: 6 1/4" x 1" Lerma Knife, Found in Central Missouri, Made of River Tumbled Flint, Ex. Croasdale Collection

May 23, 2026

6 1/4" x 1" Lerma Knife, Found in Central Missouri, Made of River Tumbled Flint, Ex. Croasdale

Heartland Artifact Auctions

1 3/4" x 1" Catlinite Elbow Pipe. Saline Co. Missouri, found at the Utz Site. Motley COA.: 1 3/4" x 1" Catlinite Elbow Pipe. Saline Co. Missouri, found at the Utz Site. Motley COA.

May 23, 2026

1 3/4" x 1" Catlinite Elbow Pipe. Saline Co. Missouri, found at the Utz Site. Motley COA.

Heartland Artifact Auctions

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100 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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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

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

3 5/8" North Blade. Missouri. Good condition. Burlington Chert. Ex Evan Maurer and Jeff Hunt.: 3 5/8" North Blade. Northern MO. Good condition. Heat treated Burlington Chert. Ex Evan Maurer and Jeff Hunt.

2025

3 5/8" North Blade. Missouri. Good condition. Burlington Chert. Ex Evan Maurer and Jeff Hunt.

Tony Putty ArtifactsGwynneville, IN

4 3/4" Hopewell Ross Blade found in Clark County, Missouri: 4 3/4" Hopewell Blade found in Clark County, Missouri by Rodney Harvey. Many variants of Hopewell Ross Blades are found in this area. This artifact is made of heat treated gray tabular chert. Exhibits

2025

4 3/4" Hopewell Ross Blade found in Clark County, Missouri

North American Artifact AuctionsHannibal, MO

Colorful Blade Arrowhead. Monroe County, IN: This Blade has exceptional color. The material is believed to be heat treated Harrodsburg chert. Found in Monroe County, IN. 3 1/16" Long.

2025

Colorful Blade Arrowhead. Monroe County, IN

Smittys AuctionParagon, IN

4 7/8" Hemphill. Nice Piece. St Louis County, Missouri. Ex Terry Allen. Rogers COA.: 4 7/8" Hemphill. Light Pickish Chert (Heat Treated?). Nice Piece. St Louis County, Missouri. Ex Terry Allen Collection. Rogers COA.

2025

4 7/8" Hemphill. Nice Piece. St Louis County, Missouri. Ex Terry Allen. Rogers COA.

Tony Putty ArtifactsGwynneville, IN

3 1/2" North Blade found North of Detroit Michigan: 3 1/2" North Blade found North of Detroit Michigan. Material is heat treated flint ridge chert. Ex Dave Dickey. Key words: Ancient, Prehistoric Native American Indian Artifacts, Arrowheads, Stone Tool

2025

3 1/2" North Blade found North of Detroit Michigan

North American Artifact AuctionsHannibal, MO

3 1/8" Kirk Corner notch found by Matt Lay in Lewis County, Missouri: 3 1/8" Kirk Corner notch found by Matt Lay in Lewis County, Missouri. Colorful piece made of a heat treated burlington chert. Key words: Ancient, Prehistoric Native American Indian Artifacts, Arrowhea

2025

3 1/8" Kirk Corner notch found by Matt Lay in Lewis County, Missouri

North American Artifact AuctionsHannibal, MO

9 1/2" Burlington Blade - Modern Made: 9 1/2" Burlington Blade - Modern Made. Material is a form of heat treated white Burlington chert. Copper manufacture.

2024

9 1/2" Burlington Blade - Modern Made

North American Artifact AuctionsHannibal, MO

1 3/4" Eccentric. Heat treated Burlington Chert. Missouri.: 1 3/4" Eccentric. Heat treated Burlington Chert. Lincoln County, Missouri.

2024

1 3/4" Eccentric. Heat treated Burlington Chert. Missouri.

Tony Putty ArtifactsGwynneville, IN

2 11/16" Red Turin Arrowhead Found in West Central Illinois. Beautiful Heat Treated Chert Material.: 2 11/16" Red Turin Arrowhead Found in West Central Illinois. Beautiful Heat Treated Chert Material. Key words: Ancient, Prehistoric Native American Indian Artifacts, Arrowheads, Stone Tools

2024

2 11/16" Red Turin Arrowhead Found in West Central Illinois. Beautiful Heat Treated Chert Material.

North American Artifact AuctionsHannibal, MO

3 3/8" Colorful Adena Waubesa found in Tennessee - Ex Walt McIntyre Collection: 3 3/8" Colorful Adena Waubesa found in Tennessee - Ex Walt McIntyre Collection. Nicely made example of the type. Material appears to be heat treated Buffalo River Chert. Key words: Ancient, Prehistori

2024

3 3/8" Colorful Adena Waubesa found in Tennessee - Ex Walt McIntyre Collection

North American Artifact AuctionsHannibal, MO

6 3/8" Morse Knife found in Pettis County, Missouri w/ Keele COA: 6 3/8" Morse Knife found in Pettis County, Missouri. Large blade form made from heat treated Marshal Chert. Ex George Wolf Collection. Comes with a Ryan Keele COA. Key words: Ancient, Prehistoric Nati

2024

6 3/8" Morse Knife found in Pettis County, Missouri w/ Keele COA

North American Artifact AuctionsHannibal, MO

3 3/8" Colorful and Well Made Big Sandy Arrowhead w/ Dickey COA: 3 3/8" Colorful and Well Made Big Sandy Arrowhead w/ Dickey COA found in Carlisle County, Kentucky. A very fine example of the type. Material appears to be heat treated Buffalo River Chert. If this po

2024

3 3/8" Colorful and Well Made Big Sandy Arrowhead w/ Dickey COA

North American Artifact AuctionsHannibal, MO

2 1/4" Multi-color Woodland Arrowhead found in Adams County, Illinois: 2 1/4" Multi-color Woodland Arrowhead found in Adams County, Illinois. Material type is heat treated Bowling Green Brown chert. Ex Dennis Smith Collection.

2024

2 1/4" Multi-color Woodland Arrowhead found in Adams County, Illinois

North American Artifact AuctionsHannibal, MO

2 Colorful Gary Arrowheads found in Boone County, Missouri: 2 Colorful Gary Arrowheads found in Boone County, Missouri by Amber Noelle. Amber likely found these two points on the same site. They are both made of heat treated burlington chert. Both points measu

2024

2 Colorful Gary Arrowheads found in Boone County, Missouri

North American Artifact AuctionsHannibal, MO

3 9/16" Colorful Bottleneck found in Lee County, Iowa w/ Keele COA: 3 9/16" Colorful Bottleneck found in Lee County, Iowa w/ Keele COA. Made of a colorful heat treated Burlington chert. Comes with a Ryan Keele Certificate of Authenticity. Ex James Vroom Collection Key

2024

3 9/16" Colorful Bottleneck found in Lee County, Iowa w/ Keele COA

North American Artifact AuctionsHannibal, MO

3 5/16" Nicely Made Hemphill Arrowhead found in Pettis County, Missouri: 3 5/16" Nicely Made Hemphill Arrowhead found in Pettis County, Missouri. Some collectors may consider this a graham cave. It is made from a highly heat treated Burlington chert. Ex George Wolf Collect

2024

3 5/16" Nicely Made Hemphill Arrowhead found in Pettis County, Missouri

North American Artifact AuctionsHannibal, MO

5 1/16" Angostura, Keele COA, Gorgeous Pink Heat-treated Burlington Chert, found in Calloway Co.,: 5 1/16" Angostura, Keele COA, Gorgeous Pink Heat-treated Burlington Chert, found in Calloway Co., Missouri, Ex Larry Underwood, Ex Terry Allen Collections

2024

5 1/16" Angostura, Keele COA, Gorgeous Pink Heat-treated Burlington Chert, found in Calloway Co.,

Heartland Artifact AuctionsQuincy, IL

3 1/2" Thebes. Pinkish Chert. Ex Henderschot and Dale Rector. COA: 3 1/2" Thebes. Pinkish Chert (Heat treated). Very well patinated. Found in Butler County, OH. Ex Henderschot and Dale Rector. Berner COA

2024

3 1/2" Thebes. Pinkish Chert. Ex Henderschot and Dale Rector. COA

Tony Putty ArtifactsShelbyville, IN

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