Summer 2020 Extravaganza Auction, Part I

Yaogangxian is a huge, underground tungsten-tin deposit. The mine covers an area of about 4 x 2.5 km and includes two large deposits of distinct type

An outstanding example of the garnet family species, Andradite. Andradite is a calcium iron nesosilicate mineral which occurs in skarns developed in c

A very well-formed cluster of greenish-bronze, dodecahedral andradite (garnet) crystals. The specimen is in outstanding condition and possesses very s

Manganoan Calcite is a variety of calcite rich in manganese, which gives the mineral a pink color. This specimen features dozens of thin, "disk...

Huge, rhombic crystals of light-pink, manganese-rich calcite crystals from the prolific specimen producing mines at Huanggang, Inner Mongolia. The gro

An attractive combo specimen Wuhuashan Mountain. The specimen features a plate of hematite included (reddish-orange color) quartz points partially cov

These fantastic quartz crystal clusters were first discovered and brought to the American mineral market within the last 10 years. The terminations of

This specimen is a cluster of highly-flattened, rhombohedral crystals of bright reddish-pink rhodochrosite from the Wutong Mine. Opened in 1958 as a s

The world's finest scheelite crystals have been produced from Mt. Xuebaoding in Sichuan Province, China. This is a superb example of the highly ...

This specimen features more than ten gemmy, lustrous, sharp, reddish-orange sphalerite crystals which have grown on a matrix covered with colorless dr

Malachite is a bright green copper carbonate hydroxide mineral which occurs in many crystal habits and forms. This fantastic specimen features long (7

This attractive apophyllite specimen features well-formed, lustrous, transparent to translucent light green crystals that are blocky in shape with ste

Aegirine is a member of the clinopyroxene group of inosilicates and is a sodium iron silicate. Aegirine occurs as dark green, monoclinic, prismatic cr

Adamite is a zinc arsenate hydroxide mineral which typically occurs in the oxidized or weathered zone above zinc ore occurrences. Pure adamite is colo

A superb, crystallized botryoidal crust of bright yellow Mimetite. Mimetite is a lead arsenate chloride mineral which forms as a secondary mineral in

Beautiful Quartz v. Amethyst from the Acatitlan Mine, Taxco de Alarcon, Mun. de Taxco, Guerrero, Mexico. 6" x 5" x 2.5". Provenance:...

Cerussite is a favorite species of mineral collectors. It is a lead carbonate mineral and is an important ore of lead. Cerussite crystallizes in the o

A spectacular specimen of the lead carbonate mineral Cerussite. Cerussite is popular with collectors worldwide as it frequently produces well formed,

An attractive mineral specimen featuring dark olive-green cube-octahedral fluorite crystals in association with "booklets" of yellowish mu...

Mined since around 1920, the Okorusu Mine is an open pit fluorite mine. The deposit is part of an alkaline igneous-carbonatite ring-dike complex where

Two doubly-terminated predominately smoky-colored quartz crystals on a granitic matrix. The quartz has good luster and has a slight hint of amethyst c

A superb, large, single color-zoned crystal of quartz from the world famous deposit in the Goboboseb Mountains of Namibia. The quartz crystal features

An attractive quartz variety amethyst specimen featuring a single, stout, prismatic, purple-colored quartz crystal on a basalt rock matrix which is fu

The Erongo Mountain is 20 km north of the town of Usakos in north central Namibia. Erongo mountain is 65 km in diameter and has significant mineral sp

This specimen was recovered from one of the numerous, complex granitic pegmatites in the area of Bulochi, Pakistan. Bulochi is a small village 4 kilom

This is a "jewel" of a topaz crystal, possessing a strong color, glassy luster, and gem-quality transparency. The crystal has textbook for...

A cluster of vibrant-green, octahedral fluorite crystals in superb condition from a surface deposit located 3 km north of the village of Riemvasmaak.

A very attractive and fascinating amethystine quartz crystal cluster from the Boekenhoutshoek area of South Africa. This occurence of quartz has been

A very well balanced and attractive cluster of amethyst quartz crystals which exhibiting the "cactus quartz" habit made famous by the spec...

This is an approximately 6.8 pound cluster of many water-clear quartz crystals, the largest being nearly an inch between parallel faces and about two

An attractive, classic specimen of this unusual silicate of potassium, sodium, lithium, iron, manganese, and titanium. The Benitoite Gem Mine (Dallas

This superb amazonite and smoky quartz specimen is from the Smoky Hawk Mine, Teller County, Colorado. Amazonite is a variety of microcline feldspar co

An exceptionally well-crystallized copper specimen from the historically important copper mining province of the Keweenaw Peninsula, Michigan. While c

Drill core with crystalline calcite in vein, RMC-69, down-hole depth 546. 4 ft. 2.5" diameter. 4" long. (This specimen was found at the mi...

Beautiful. Drill core with crystalline barite in vug, RL-264, down-hole depth 833.3 ft. 2.5" diameter. 8.5" long. (This specimen was found...

Clay altered rhyolite with marcasite ± barite-clay-gold mineralization on fractures. 4x6x4.5". Field Guide: staff. (This specimen was foun...

Probably Landside blocks containg banded potassium alunite-KAl3(SO4)2(OH)6-vein material very similar to that found on Alunite Ridge. 4.5x8.5"....

Massive Zn-Pb-Ag-Au-Cu carbonate replacement ore hosted in the Permian Toroweap Formation-205 Stope. 5x3x3". 4x3x2". (This specimen was fo...

High Grade. Massive Pb-Zn-Ag-Au-Cu carbonate replacement ore hosted in the Permian Toroweap Formation-205 Stope. 4x5x5". (This specimen was fou...

Late-stage silicified and quartz-veined breccia with replacement Pb-Zn-Ag-Au-Cu ore breccia fragments. 5x6x4". (This specimen was found at the ...

High Grade. Massive Zn-Pb-Ag-Au-Cu carbonate replacement ore hosted in the Permian Toroweap Formation-205 Stope. 5x7x3". (This specimen was fou...

7 travertine stalactites from Cave Mine, UT. 7-20" long Provenance: Geff Pollock Collection Country (if not USA): State: Utah City/Count...

This is a collection of 22 specimens from the Ophir Mining District in the Oquirrh Mountains of Tooele County, Utah. Most contain bright massive or cr

The Elk Creek, Meade County, South Dakota locality is well known for producing fabulous specimens of golden barite crystals on an attractively contras

First opened in the 1970s, the Elmwood Mine (the Elmwood-Gordonsville-Cumberland mining complex) has produced some of the world's finest calcite...

A superb calcite crystal on dolostone matrix from the Elmwood Mine, near Carthage, Tennessee. This large, twinned and doubly terminated calcite crysta

This is a classic mineral specimen from the Elmwood mine near Carthage, Tennessee. The specimen features light purple, cubic crystals of fluorite and

Five labeled ore specimens from the Upchurch Collection representing various locations in Chihuahua, Mexico. Total weight is about two pounds for the

From Main Choque Ore Body. Stage II breccia with fragments of early vuggy silica and Stage I breccia. 5x3x.5". (This specimen was found at the ...

Base metal ore sample with locally complex mineralogy, note galena in vugs & fractures. 4x2.5x2". (This specimen was found at the mine by a...