Colorful Goethite Formation

Description

Multi-colored goethite stalactite specimen from Chihuahua, Mexico. 4" x 11.5" x 3". 2 lbs, 7 oz.

Buyer's Premium

15%

Dimensions

4 x 11.5 x 3 in

Weight

2.7 lb

Colorful Goethite Formation

Lot 0368

Estimate $400-$600Sep 19, 2026, 1:00 PM EDT

Starting Price

Secure

$175

Good Bid

Strong Bid

Competitive Bid

Or select a higher max bid amount

Get approved to bid.

Fall Rock and Fossil Timed Clearance Auction

Sep 19, 2026, 1:00 PM EDT

Houston, TX, United States

Moroccan Jurassic Four Starfish Fossil: Moroccan Jurassic four starfish fossil. 5.5" x 7.25" x .5". 1 pound, 7 ounces.

Sep 19, 2026Moroccan Jurassic Four Starfish Fossil

$125

Small Ludlamite and Vivianite Specimen: Small Ludlamite and vivianite specimen from Brazil. 2.5” x 2.75” x 1”. 5 oz.

Sep 19, 2026Small Ludlamite and Vivianite Specimen

$1

Paciphacops Trilobite Fossil: Paciphacops trilobite fossil from the Clarita, Oklahoma area. Siluro-Devonian Age. 3.75" x 2.25" x 2.25". 15 ounces.

Sep 19, 2026Paciphacops Trilobite Fossil

$125

Polished Rhodonite Heart: Polished rhodonite heart from Madagascar. 5.5" x 6.5" x 2". 4 lbs, 14 oz.

Sep 19, 2026Polished Rhodonite Heart

$100

Polished Bullseye Malachite Specimen With Cut Base: Large polished bullseye malachite specimen from the DR Congo. Underside was cemented and painted. 5.5" x 8.5" x 3.75". 8 lbs, 7 oz.

Sep 19, 2026Polished Bullseye Malachite Specimen With Cut Base

$125

Quartz and Cubic Pyrite Formation: Stunning and large quartz and cubic pyrite formation from the Huanzala Mine in Peru. 6" x 8" x 6". 12 lbs, 5 oz.

Sep 19, 2026Quartz and Cubic Pyrite Formation

$550

Cubic Pyrite and Quartz Plate: Cubic pyrite and quartz in rarely found plate form from Peru. 5” x 8.5” x 3”. 3 lbs, 7 ounce.

Sep 19, 2026Cubic Pyrite and Quartz Plate

$175

Golden Cubic Calcite Formation: Golden yellow cubic calcite formation from Hunan Province, China. 8” x 10” x 3”. 9 lbs, 4 oz.

Sep 19, 2026Golden Cubic Calcite Formation

$350

Moroccan Jurassic Six Starfish Fossil: Moroccan Jurassic six starfish fossil. 9.5" x 13" x 1". 5 lb, 3 ounces.

Sep 19, 2026Moroccan Jurassic Six Starfish Fossil

$300

Cubic Pyrite Formation: Stunning cubic pyrite formation with enormous crystals from the Huanzala Mine in Peru. 4" x 6" x 4.25". 6 lbs, 8 oz.

Sep 19, 2026Cubic Pyrite Formation

$350

103 Pound Uruguayan Amethyst Cluster - MONUMENT: 103 pound dark amethyst cluster from Uruguay. 12.5" x 20" x 8". 103 lbs, 4 oz.

Sep 19, 2026103 Pound Uruguayan Amethyst Cluster - MONUMENT

$1,700

Yellow Tourmaline Formation: Rare yellow tourmaline, mica and quartz formation. 5" x 6.5" x 3". 4 lbs, 12 oz.

Sep 19, 2026Yellow Tourmaline Formation

$125

75 Pound Uruguayan Amethyst Cluster - MONUMENT: 75 pound dark amethyst cluster from Uruguay. 22" x 19" x 5". 75 lbs, 9 oz.

Sep 19, 202675 Pound Uruguayan Amethyst Cluster - MONUMENT

$1,300

2 Mexican Aragonite Formations: 2 Mexican aragonite/cave calcite formations. 4 lb, 8 ounces total.

Sep 19, 20262 Mexican Aragonite Formations

$1

Crane Fly Fossil: Crane fly fossil from the Green River area. Eocene Age. 3.5" x 3.5" x 1.5". 13 ounces.

Sep 19, 2026Crane Fly Fossil

$90

Large Polished Ammonite Fossil: Large polished ammonite fossil from Madagascar. 7.5" x 9.5" x 2". 5 lb, 15 ounces.

Sep 19, 2026Large Polished Ammonite Fossil

$225

Maple Leaf Fossil: Maple leaf fossil from the Green River area. Eocene Age. 6.25" x 5.25" x .75". 15 ounces.

Sep 19, 2026Maple Leaf Fossil

$90

Leaf Fossil Plate: Multiple leaf fossil plate from Florissant, Colorado. Eocene Age. 4.5" x 3.5" x .5". 5 ounces.

Sep 19, 2026Leaf Fossil Plate

$40

Crane Fly Fossil: Crane fly fossil from the Green River area. Eocene Age. 3" x 3.75" x 1.25". 11 ounces.

Sep 19, 2026Crane Fly Fossil

$90

Uruguayan Amethyst Cluster on Wood Stand: High quality Uruguayan amethyst cluster on custom wood stand. 9.5" x 6" x 5". 8 lbs, 4 oz.

Sep 19, 2026Uruguayan Amethyst Cluster on Wood Stand

$125

Related Items

Colorful Goethite Formation: Multi-colored goethite stalactite specimen from Chihuahua, Mexico. 6.25" x 15" x 3.5". 5 lbs, 8 oz.

Sep 19, 2026Colorful Goethite Formation

$300

Colorful Goethite Formation: Multi-colored goethite stalactite specimen from Chihuahua, Mexico. 6" x 10.5" x 3.75". 3 lbs, 9 oz.

Sep 19, 2026Colorful Goethite Formation

$250

TOP